Update TypeScript implementations

- Dependency updates
- ESLint flat configuration format, replacing deprecated configuration
- Minor fixes to compile and lint issues
- Consistent TypeScript formatting with .editorconfig

Signed-off-by: Mark S. Lewis <Mark.S.Lewis@outlook.com>

.editorconfig

@@ -0,0 +1,17 @@
+root = true
+
+[*]
+charset = utf-8
+indent_style = space
+insert_final_newline = true
+trim_trailing_whitespace = true
+
+[*.ts]
+indent_size = 4
+quote_type = single
+
+[*.json]
+indent_size = 4
+
+[*.md]
+max_line_length = off

asset-transfer-basic/application-gateway-typescript/.eslintrc.json

@@ -1,45 +0,0 @@
-{
-    "env": {
-      "node": true,
-      "es6": true
-    },
-    "root": true,
-    "ignorePatterns": [
-      "dist/"
-    ],
-    "extends": [
-      "eslint:recommended"
-    ],
-    "rules": {
-      "indent": [
-        "error",
-        4
-      ],
-      "quotes": [
-        "error",
-        "single"
-      ]
-    },
-    "overrides": [
-      {
-        "files": [
-          "**/*.ts"
-        ],
-        "parser": "@typescript-eslint/parser",
-        "parserOptions": {
-          "sourceType": "module",
-          "ecmaFeatures": {
-            "impliedStrict": true
-          }
-        },
-        "plugins": [
-          "@typescript-eslint"
-        ],
-        "extends": [
-          "eslint:recommended",
-          "plugin:@typescript-eslint/eslint-recommended",
-          "plugin:@typescript-eslint/recommended"
-        ]
-      }
-    ]
-  }

asset-transfer-basic/application-gateway-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

asset-transfer-basic/application-gateway-typescript/package.json

@@ -10,7 +10,7 @@
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc -w",
-        "lint": "eslint . --ext .ts",
+        "lint": "eslint src",
         "prepare": "npm run build",
         "pretest": "npm run lint",
         "start": "node dist/app.js"
@@ -19,15 +19,15 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0"
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5"
     },
     "devDependencies": {
+        "@eslint/js": "^9.3.0",
         "@tsconfig/node18": "^18.2.2",
         "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
-        "typescript": "~5.2.2"
+        "eslint": "^8.57.0",
+        "typescript": "~5.4",
+        "typescript-eslint": "^7.13.0"
     }
 }

asset-transfer-basic/application-gateway-typescript/src/app.ts

@@ -34,11 +34,10 @@ const peerEndpoint = envOrDefault('PEER_ENDPOINT', 'localhost:7051');
 const peerHostAlias = envOrDefault('PEER_HOST_ALIAS', 'peer0.org1.example.com');
 
 const utf8Decoder = new TextDecoder();
-const assetId = `asset${Date.now()}`;
+const assetId = `asset${String(Date.now())}`;
 
 async function main(): Promise<void> {
-
-    await displayInputParameters();
+    displayInputParameters();
 
     // The gRPC client connection should be shared by all Gateway connections to this endpoint.
     const client = await newGrpcConnection();
@@ -92,7 +91,7 @@ async function main(): Promise<void> {
     }
 }
 
-main().catch(error => {
+main().catch((error: unknown) => {
     console.error('******** FAILED to run the application:', error);
     process.exitCode = 1;
 });
@@ -113,7 +112,11 @@ async function newIdentity(): Promise<Identity> {
 
 async function getFirstDirFileName(dirPath: string): Promise<string> {
     const files = await fs.readdir(dirPath);
-    return path.join(dirPath, files[0]);
+    const file = files[0];
+    if (!file) {
+        throw new Error(`No files in directory: ${dirPath}`);
+    }
+    return path.join(dirPath, file);
 }
 
 async function newSigner(): Promise<Signer> {
@@ -144,7 +147,7 @@ async function getAllAssets(contract: Contract): Promise<void> {
     const resultBytes = await contract.evaluateTransaction('GetAllAssets');
 
     const resultJson = utf8Decoder.decode(resultBytes);
-    const result = JSON.parse(resultJson);
+    const result: unknown = JSON.parse(resultJson);
     console.log('*** Result:', result);
 }
 
@@ -183,7 +186,7 @@ async function transferAssetAsync(contract: Contract): Promise<void> {
 
     const status = await commit.getStatus();
     if (!status.successful) {
-        throw new Error(`Transaction ${status.transactionId} failed to commit with status code ${status.code}`);
+        throw new Error(`Transaction ${status.transactionId} failed to commit with status code ${String(status.code)}`);
     }
 
     console.log('*** Transaction committed successfully');
@@ -195,7 +198,7 @@ async function readAssetByID(contract: Contract): Promise<void> {
     const resultBytes = await contract.evaluateTransaction('ReadAsset', assetId);
 
     const resultJson = utf8Decoder.decode(resultBytes);
-    const result = JSON.parse(resultJson);
+    const result: unknown = JSON.parse(resultJson);
     console.log('*** Result:', result);
 }
 
@@ -230,7 +233,7 @@ function envOrDefault(key: string, defaultValue: string): string {
 /**
  * displayInputParameters() will print the global scope parameters used by the main driver routine.
  */
-async function displayInputParameters(): Promise<void> {
+function displayInputParameters(): void {
     console.log(`channelName:       ${channelName}`);
     console.log(`chaincodeName:     ${chaincodeName}`);
     console.log(`mspId:             ${mspId}`);

asset-transfer-basic/application-gateway-typescript/tsconfig.json

@@ -1,17 +1,15 @@
 {
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
-       "experimentalDecorators": true,
-       "emitDecoratorMetadata": true,
         "outDir": "dist",
         "declaration": true,
+        "declarationMap": true,
         "sourceMap": true,
-       "noImplicitAny": true
+        "noUnusedLocals": true,
+        "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
+        "forceConsistentCasingInFileNames": true
     },
-   "include": [
-       "./src/**/*"
-   ],
-   "exclude": [
-       "./src/**/*.spec.ts"
-   ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }

asset-transfer-basic/chaincode-typescript/src/asset.ts

@@ -10,17 +10,17 @@ export class Asset {
     public docType?: string;
 
     @Property()
-    public ID: string;
+    public ID: string = '';
 
     @Property()
-    public Color: string;
+    public Color: string = '';
 
     @Property()
-    public Size: number;
+    public Size: number = 0;
 
     @Property()
-    public Owner: string;
+    public Owner: string = '';
 
     @Property()
-    public AppraisedValue: number;
+    public AppraisedValue: number = 0;
 }

asset-transfer-basic/rest-api-typescript/.editorconfig

@@ -0,0 +1,3 @@
+[*.ts]
+indent_size = 4
+quote_type = single

asset-transfer-basic/rest-api-typescript/.prettierrc.json

@@ -1,3 +0,0 @@
-{
-    "singleQuote": true
-}

asset-transfer-basic/rest-api-typescript/src/__tests__/api.test.ts

@@ -137,7 +137,9 @@ describe('Asset Transfer Besic REST API', () => {
         });
 
         it('GET should respond with an empty json array when there are no assets', async () => {
-      mockGetAllAssetsTransaction.evaluate.mockResolvedValue(Buffer.from(''));
+            mockGetAllAssetsTransaction.evaluate.mockResolvedValue(
+                Buffer.from('')
+            );
 
             const response = await request(app)
                 .get('/api/assets')
@@ -359,7 +361,9 @@ describe('Asset Transfer Besic REST API', () => {
         it('GET should respond with 404 not found json when there is no asset with the specified ID', async () => {
             mockReadAssetTransaction.evaluate
                 .calledWith('asset3')
-        .mockRejectedValue(new Error('the asset asset3 does not exist'));
+                .mockRejectedValue(
+                    new Error('the asset asset3 does not exist')
+                );
 
             const response = await request(app)
                 .get('/api/assets/asset3')

asset-transfer-basic/rest-api-typescript/src/assets.router.ts

@@ -121,7 +121,11 @@ assetsRouter.options('/:assetId', async (req: Request, res: Response) => {
         const mspId = req.user as string;
         const contract = req.app.locals[mspId]?.assetContract as Contract;
 
-    const data = await evatuateTransaction(contract, 'AssetExists', assetId);
+        const data = await evatuateTransaction(
+            contract,
+            'AssetExists',
+            assetId
+        );
         const exists = data.toString() === 'true';
 
         if (exists) {
@@ -260,7 +264,9 @@ assetsRouter.patch(
             min: 1,
             max: 1,
         })
-    .withMessage('body must contain an array with a single patch operation'),
+        .withMessage(
+            'body must contain an array with a single patch operation'
+        ),
     body('*.op', "operation must be 'replace'").equals('replace'),
     body('*.path', "path must be '/Owner'").equals('/Owner'),
     body('*.value', 'must be a string').isString(),

asset-transfer-basic/rest-api-typescript/src/config.spec.ts

@@ -365,7 +365,8 @@ describe('Config values', () => {
         });
 
         it('can be configured using the "HLF_CONNECTION_PROFILE_ORG1" environment variable', () => {
-      process.env.HLF_CONNECTION_PROFILE_ORG1 = '{"name":"test-network-org1"}';
+            process.env.HLF_CONNECTION_PROFILE_ORG1 =
+                '{"name":"test-network-org1"}';
             const config = require('./config');
             expect(config.connectionProfileOrg1).toStrictEqual({
                 name: 'test-network-org1',
@@ -427,7 +428,8 @@ describe('Config values', () => {
         });
 
         it('can be configured using the "HLF_CONNECTION_PROFILE_ORG2" environment variable', () => {
-      process.env.HLF_CONNECTION_PROFILE_ORG2 = '{"name":"test-network-org2"}';
+            process.env.HLF_CONNECTION_PROFILE_ORG2 =
+                '{"name":"test-network-org2"}';
             const config = require('./config');
             expect(config.connectionProfileOrg2).toStrictEqual({
                 name: 'test-network-org2',

asset-transfer-basic/rest-api-typescript/src/config.ts

@@ -192,7 +192,9 @@ export const connectionProfileOrg1 = env
 export const certificateOrg1 = env
     .get('HLF_CERTIFICATE_ORG1')
     .required()
-  .example('"-----BEGIN CERTIFICATE-----\\n...\\n-----END CERTIFICATE-----\\n"')
+    .example(
+        '"-----BEGIN CERTIFICATE-----\\n...\\n-----END CERTIFICATE-----\\n"'
+    )
     .asString();
 
 /**
@@ -201,7 +203,9 @@ export const certificateOrg1 = env
 export const privateKeyOrg1 = env
     .get('HLF_PRIVATE_KEY_ORG1')
     .required()
-  .example('"-----BEGIN PRIVATE KEY-----\\n...\\n-----END PRIVATE KEY-----\\n"')
+    .example(
+        '"-----BEGIN PRIVATE KEY-----\\n...\\n-----END PRIVATE KEY-----\\n"'
+    )
     .asString();
 
 /**
@@ -221,7 +225,9 @@ export const connectionProfileOrg2 = env
 export const certificateOrg2 = env
     .get('HLF_CERTIFICATE_ORG2')
     .required()
-  .example('"-----BEGIN CERTIFICATE-----\\n...\\n-----END CERTIFICATE-----\\n"')
+    .example(
+        '"-----BEGIN CERTIFICATE-----\\n...\\n-----END CERTIFICATE-----\\n"'
+    )
     .asString();
 
 /**
@@ -230,7 +236,9 @@ export const certificateOrg2 = env
 export const privateKeyOrg2 = env
     .get('HLF_PRIVATE_KEY_ORG2')
     .required()
-  .example('"-----BEGIN PRIVATE KEY-----\\n...\\n-----END PRIVATE KEY-----\\n"')
+    .example(
+        '"-----BEGIN PRIVATE KEY-----\\n...\\n-----END PRIVATE KEY-----\\n"'
+    )
     .asString();
 
 /**

asset-transfer-basic/rest-api-typescript/src/errors.spec.ts

@@ -44,12 +44,18 @@ describe('Errors', () => {
 
         it('returns false for error like object with invalid stack', () => {
             expect(
-        isErrorLike({ name: 'MockError', message: 'Fail', stack: false })
+                isErrorLike({
+                    name: 'MockError',
+                    message: 'Fail',
+                    stack: false,
+                })
             ).toBe(false);
         });
 
         it('returns true for error like object', () => {
-      expect(isErrorLike({ name: 'MockError', message: 'Fail' })).toBe(true);
+            expect(isErrorLike({ name: 'MockError', message: 'Fail' })).toBe(
+                true
+            );
         });
 
         it('returns true for new Error', () => {
@@ -62,18 +68,19 @@ describe('Errors', () => {
             const mockDuplicateTransactionError = mock<TransactionError>();
             mockDuplicateTransactionError.transactionCode = 'DUPLICATE_TXID';
 
-      expect(isDuplicateTransactionError(mockDuplicateTransactionError)).toBe(
-        true
-      );
+            expect(
+                isDuplicateTransactionError(mockDuplicateTransactionError)
+            ).toBe(true);
         });
 
         it('returns false for a TransactionError without a transaction code of MVCC_READ_CONFLICT', () => {
             const mockDuplicateTransactionError = mock<TransactionError>();
-      mockDuplicateTransactionError.transactionCode = 'MVCC_READ_CONFLICT';
+            mockDuplicateTransactionError.transactionCode =
+                'MVCC_READ_CONFLICT';
 
-      expect(isDuplicateTransactionError(mockDuplicateTransactionError)).toBe(
-        false
-      );
+            expect(
+                isDuplicateTransactionError(mockDuplicateTransactionError)
+            ).toBe(false);
         });
 
         it('returns true for an error when all endorsement details are duplicate transaction found', () => {
@@ -95,9 +102,9 @@ describe('Errors', () => {
                 ],
             };
 
-      expect(isDuplicateTransactionError(mockDuplicateTransactionError)).toBe(
-        true
-      );
+            expect(
+                isDuplicateTransactionError(mockDuplicateTransactionError)
+            ).toBe(true);
         });
 
         it('returns true for an error when at least one endorsement details are duplicate transaction found', () => {
@@ -119,9 +126,9 @@ describe('Errors', () => {
                 ],
             };
 
-      expect(isDuplicateTransactionError(mockDuplicateTransactionError)).toBe(
-        true
-      );
+            expect(
+                isDuplicateTransactionError(mockDuplicateTransactionError)
+            ).toBe(true);
         });
 
         it('returns false for an error without duplicate transaction endorsement details', () => {
@@ -140,9 +147,9 @@ describe('Errors', () => {
                 ],
             };
 
-      expect(isDuplicateTransactionError(mockDuplicateTransactionError)).toBe(
-        false
-      );
+            expect(
+                isDuplicateTransactionError(mockDuplicateTransactionError)
+            ).toBe(false);
         });
 
         it('returns false for an error without endorsement details', () => {
@@ -158,14 +165,16 @@ describe('Errors', () => {
                 ],
             };
 
-      expect(isDuplicateTransactionError(mockDuplicateTransactionError)).toBe(
-        false
-      );
+            expect(
+                isDuplicateTransactionError(mockDuplicateTransactionError)
+            ).toBe(false);
         });
 
         it('returns false for a basic Error object without endorsement details', () => {
             expect(
-        isDuplicateTransactionError(new Error('duplicate transaction found'))
+                isDuplicateTransactionError(
+                    new Error('duplicate transaction found')
+                )
             ).toBe(false);
         });
 
@@ -229,7 +238,9 @@ describe('Errors', () => {
                 'txn1'
             );
 
-      expect(getRetryAction(mockAssetNotFoundError)).toBe(RetryAction.None);
+            expect(getRetryAction(mockAssetNotFoundError)).toBe(
+                RetryAction.None
+            );
         });
 
         it('returns RetryAction.WithExistingTransactionId for a TimeoutError', () => {
@@ -252,13 +263,17 @@ describe('Errors', () => {
         it('returns RetryAction.WithNewTransactionId for an Error', () => {
             const mockError = new Error('MOCK ERROR');
 
-      expect(getRetryAction(mockError)).toBe(RetryAction.WithNewTransactionId);
+            expect(getRetryAction(mockError)).toBe(
+                RetryAction.WithNewTransactionId
+            );
         });
 
         it('returns RetryAction.WithNewTransactionId for a string error', () => {
             const mockError = 'MOCK ERROR';
 
-      expect(getRetryAction(mockError)).toBe(RetryAction.WithNewTransactionId);
+            expect(getRetryAction(mockError)).toBe(
+                RetryAction.WithNewTransactionId
+            );
         });
     });
 

asset-transfer-basic/rest-api-typescript/src/errors.ts

@@ -248,19 +248,25 @@ export const handleError = (
     logger.debug({ transactionId: transactionId, err }, 'Processing error');
 
     if (isErrorLike(err)) {
-    const assetAlreadyExistsMatch = matchAssetAlreadyExistsMessage(err.message);
+        const assetAlreadyExistsMatch = matchAssetAlreadyExistsMessage(
+            err.message
+        );
         if (assetAlreadyExistsMatch !== null) {
             return new AssetExistsError(assetAlreadyExistsMatch, transactionId);
         }
 
-    const assetDoesNotExistMatch = matchAssetDoesNotExistMessage(err.message);
-    if (assetDoesNotExistMatch !== null) {
-      return new AssetNotFoundError(assetDoesNotExistMatch, transactionId);
-    }
-
-    const transactionDoesNotExistMatch = matchTransactionDoesNotExistMessage(
+        const assetDoesNotExistMatch = matchAssetDoesNotExistMessage(
             err.message
         );
+        if (assetDoesNotExistMatch !== null) {
+            return new AssetNotFoundError(
+                assetDoesNotExistMatch,
+                transactionId
+            );
+        }
+
+        const transactionDoesNotExistMatch =
+            matchTransactionDoesNotExistMessage(err.message);
         if (transactionDoesNotExistMatch !== null) {
             return new TransactionNotFoundError(
                 transactionDoesNotExistMatch,

asset-transfer-basic/rest-api-typescript/src/fabric.spec.ts

@@ -90,7 +90,9 @@ describe('Fabric', () => {
 
             await getNetwork(mockGateway);
 
-      expect(mockGateway.getNetwork).toHaveBeenCalledWith(config.channelName);
+            expect(mockGateway.getNetwork).toHaveBeenCalledWith(
+                config.channelName
+            );
         });
     });
 
@@ -277,14 +279,16 @@ describe('Fabric', () => {
             );
 
             const mockTransaction = mock<Transaction>();
-      mockTransaction.evaluate.mockResolvedValue(processedTransactionBuffer);
+            mockTransaction.evaluate.mockResolvedValue(
+                processedTransactionBuffer
+            );
             const mockContract = mock<Contract>();
             mockContract.createTransaction
                 .calledWith('GetTransactionByID')
                 .mockReturnValue(mockTransaction);
-      expect(await getTransactionValidationCode(mockContract, 'txn1')).toBe(
-        'VALID'
-      );
+            expect(
+                await getTransactionValidationCode(mockContract, 'txn1')
+            ).toBe('VALID');
         });
     });
 

asset-transfer-basic/rest-api-typescript/src/fabric.ts

@@ -81,7 +81,8 @@ export const createGateway = async (
         },
         queryHandlerOptions: {
             timeout: config.queryTimeout,
-      strategy: DefaultQueryHandlerStrategies.PREFER_MSPID_SCOPE_ROUND_ROBIN,
+            strategy:
+                DefaultQueryHandlerStrategies.PREFER_MSPID_SCOPE_ROUND_ROBIN,
         },
     };
 
@@ -174,7 +175,8 @@ export const getTransactionValidationCode = async (
         transactionId
     );
 
-  const processedTransaction = protos.protos.ProcessedTransaction.decode(data);
+    const processedTransaction =
+        protos.protos.ProcessedTransaction.decode(data);
     const validationCode =
         protos.protos.TxValidationCode[processedTransaction.validationCode];
 

asset-transfer-basic/rest-api-typescript/src/health.router.ts

@@ -31,8 +31,10 @@ healthRouter.get('/live', async (req: Request, res: Response) => {
 
     try {
         const submitQueue = req.app.locals.jobq as Queue;
-    const qsccOrg1 = req.app.locals[config.mspIdOrg1]?.qsccContract as Contract;
-    const qsccOrg2 = req.app.locals[config.mspIdOrg2]?.qsccContract as Contract;
+        const qsccOrg1 = req.app.locals[config.mspIdOrg1]
+            ?.qsccContract as Contract;
+        const qsccOrg2 = req.app.locals[config.mspIdOrg2]
+            ?.qsccContract as Contract;
 
         await Promise.all([
             getBlockHeight(qsccOrg1),

asset-transfer-basic/rest-api-typescript/src/jobs.router.ts

@@ -23,7 +23,11 @@ jobsRouter.get('/:jobId', async (req: Request, res: Response) => {
 
         return res.status(OK).json(jobSummary);
     } catch (err) {
-    logger.error({ err }, 'Error processing read request for job ID %s', jobId);
+        logger.error(
+            { err },
+            'Error processing read request for job ID %s',
+            jobId
+        );
 
         if (err instanceof JobNotFoundError) {
             return res.status(NOT_FOUND).json({

asset-transfer-basic/rest-api-typescript/src/jobs.spec.ts

@@ -227,7 +227,9 @@ describe('getJobCounts', () => {
 
         beforeEach(() => {
             mockTransaction = mock<Transaction>();
-      mockTransaction.getTransactionId.mockReturnValue('mockTransactionId');
+            mockTransaction.getTransactionId.mockReturnValue(
+                'mockTransactionId'
+            );
 
             mockContract = mock<Contract>();
             mockContract.createTransaction

asset-transfer-basic/rest-api-typescript/src/redis.spec.ts

@@ -27,7 +27,10 @@ describe('Redis', () => {
         });
 
         it('returns false when the maxmemory-policy is not noeviction', async () => {
-      mockRedisConfig.mockReturnValue(['maxmemory-policy', 'allkeys-lru']);
+            mockRedisConfig.mockReturnValue([
+                'maxmemory-policy',
+                'allkeys-lru',
+            ]);
             expect(await isMaxmemoryPolicyNoeviction()).toBe(false);
         });
     });

asset-transfer-basic/rest-api-typescript/src/transactions.router.ts

@@ -18,10 +18,14 @@ transactionsRouter.get(
     async (req: Request, res: Response) => {
         const mspId = req.user as string;
         const transactionId = req.params.transactionId;
-    logger.debug('Read request received for transaction ID %s', transactionId);
+        logger.debug(
+            'Read request received for transaction ID %s',
+            transactionId
+        );
 
         try {
-      const qsccContract = req.app.locals[mspId]?.qsccContract as Contract;
+            const qsccContract = req.app.locals[mspId]
+                ?.qsccContract as Contract;
 
             const validationCode = await getTransactionValidationCode(
                 qsccContract,

asset-transfer-events/application-gateway-typescript/.eslintrc.json

@@ -1,46 +0,0 @@
-{
-    "env": {
-      "node": true,
-      "es2020": true
-    },
-    "root": true,
-    "ignorePatterns": [
-      "dist/"
-    ],
-    "extends": [
-      "eslint:recommended"
-    ],
-    "rules": {
-      "indent": [
-        "error",
-        4
-      ],
-      "quotes": [
-        "error",
-        "single"
-      ]
-    },
-    "overrides": [
-      {
-        "files": [
-          "**/*.ts"
-        ],
-        "parser": "@typescript-eslint/parser",
-        "parserOptions": {
-          "sourceType": "module",
-          "ecmaFeatures": {
-            "impliedStrict": true
-          },
-          "project": "./tsconfig.json"
-        },
-        "plugins": [
-          "@typescript-eslint"
-        ],
-        "extends": [
-          "eslint:recommended",
-          "plugin:@typescript-eslint/recommended",
-          "plugin:@typescript-eslint/recommended-requiring-type-checking"
-        ]
-      }
-    ]
-  }

asset-transfer-events/application-gateway-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

asset-transfer-events/application-gateway-typescript/package.json

@@ -10,7 +10,7 @@
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc -w",
-        "lint": "eslint . --ext .ts",
+        "lint": "eslint src",
         "prepare": "npm run build",
         "pretest": "npm run lint",
         "start": "node dist/app.js"
@@ -19,15 +19,15 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0"
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5"
     },
     "devDependencies": {
+        "@eslint/js": "^9.3.0",
         "@tsconfig/node18": "^18.2.2",
         "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
-        "typescript": "~5.2.2"
+        "eslint": "^8.57.0",
+        "typescript": "~5.4",
+        "typescript-eslint": "^7.13.0"
     }
 }

asset-transfer-events/application-gateway-typescript/src/app.ts

@@ -14,7 +14,7 @@ const chaincodeName = 'events';
 
 const utf8Decoder = new TextDecoder();
 const now = Date.now();
-const assetId = `asset${now}`;
+const assetId = `asset${String(now)}`;
 
 
 async function main(): Promise<void> {
@@ -60,7 +60,7 @@ async function main(): Promise<void> {
     }
 }
 
-main().catch(error => {
+main().catch((error: unknown) => {
     console.error('******** FAILED to run the application:', error);
     process.exitCode = 1;
 });
@@ -102,7 +102,7 @@ async function createAsset(contract: Contract): Promise<bigint> {
 
     const status = await result.getStatus();
     if (!status.successful) {
-        throw new Error(`failed to commit transaction ${status.transactionId} with status code ${status.code}`);
+        throw new Error(`failed to commit transaction ${status.transactionId} with status code ${String(status.code)}`);
     }
 
     console.log('\n*** CreateAsset committed successfully');

asset-transfer-events/application-gateway-typescript/src/connect.ts

@@ -50,5 +50,9 @@ export async function newSigner(): Promise<Signer> {
 
 async function getFirstDirFileName(dirPath: string): Promise<string> {
     const files = await fs.readdir(dirPath);
-    return path.join(dirPath, files[0]);
+    const file = files[0];
+    if (!file) {
+        throw new Error(`No files in directory: ${dirPath}`);
+    }
+    return path.join(dirPath, file);
 }

asset-transfer-events/application-gateway-typescript/tsconfig.json

@@ -1,17 +1,15 @@
 {
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
-       "experimentalDecorators": true,
-       "emitDecoratorMetadata": true,
         "outDir": "dist",
         "declaration": true,
+        "declarationMap": true,
         "sourceMap": true,
-       "noImplicitAny": true
+        "noUnusedLocals": true,
+        "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
+        "forceConsistentCasingInFileNames": true
     },
-   "include": [
-       "./src/**/*"
-   ],
-   "exclude": [
-       "./src/**/*.spec.ts"
-   ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }

asset-transfer-private-data/application-gateway-typescript/.eslintrc.json

@@ -1,45 +0,0 @@
-{
-    "env": {
-      "node": true,
-      "es6": true
-    },
-    "root": true,
-    "ignorePatterns": [
-      "dist/"
-    ],
-    "extends": [
-      "eslint:recommended"
-    ],
-    "rules": {
-      "indent": [
-        "error",
-        4
-      ],
-      "quotes": [
-        "error",
-        "single"
-      ]
-    },
-    "overrides": [
-      {
-        "files": [
-          "**/*.ts"
-        ],
-        "parser": "@typescript-eslint/parser",
-        "parserOptions": {
-          "sourceType": "module",
-          "ecmaFeatures": {
-            "impliedStrict": true
-          }
-        },
-        "plugins": [
-          "@typescript-eslint"
-        ],
-        "extends": [
-          "eslint:recommended",
-          "plugin:@typescript-eslint/eslint-recommended",
-          "plugin:@typescript-eslint/recommended"
-        ]
-      }
-    ]
-  }

asset-transfer-private-data/application-gateway-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

asset-transfer-private-data/application-gateway-typescript/package.json

@@ -10,7 +10,7 @@
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc -w",
-        "lint": "eslint . --ext .ts",
+        "lint": "eslint src",
         "prepare": "npm run build",
         "pretest": "npm run lint",
         "start": "node dist/app.js"
@@ -19,15 +19,15 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0"
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5"
     },
     "devDependencies": {
+        "@eslint/js": "^9.3.0",
         "@tsconfig/node18": "^18.2.2",
         "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
-        "typescript": "~5.2.2"
+        "eslint": "^8.57.0",
+        "typescript": "~5.4",
+        "typescript-eslint": "^7.13.0"
     }
 }

asset-transfer-private-data/application-gateway-typescript/src/app.ts

@@ -27,8 +27,8 @@ const RESET = '\x1b[0m';
 
 // Use a unique key so that we can run multiple times
 const now = Date.now();
-const assetID1 = `asset${now}`;
-const assetID2 = `asset${now + 1}`;
+const assetID1 = `asset${String(now)}`;
+const assetID2 = `asset${String(now + 1)}`;
 
 async function main(): Promise<void> {
     const clientOrg1 = await newGrpcConnection(
@@ -79,9 +79,8 @@ async function main(): Promise<void> {
             console.log('\nAttempt TransferAsset without prior AgreeToTransfer');
             await transferAsset(contractOrg1, assetID1);
             doFail('TransferAsset transaction succeeded when it was expected to fail');
-        }
-        catch(e){
-            console.log(`*** Received expected error: ${e}`);
+        } catch (e) {
+            console.log('*** Received expected error:', e);
         }
 
         console.log('\n~~~~~~~~~~~~~~~~ As Org2 Client ~~~~~~~~~~~~~~~~');
@@ -122,7 +121,7 @@ async function main(): Promise<void> {
             await deleteAsset(contractOrg2, assetID2);
             doFail('DeleteAsset transaction succeeded when it was expected to fail');
         } catch (e) {
-            console.log(`*** Received expected error: ${e}`);
+            console.log('*** Received expected error:', e);
         }
 
         console.log('\n~~~~~~~~~~~~~~~~ As Org1 Client ~~~~~~~~~~~~~~~~');
@@ -142,7 +141,7 @@ async function main(): Promise<void> {
     }
 }
 
-main().catch((error) => {
+main().catch((error: unknown) => {
     console.error('******** FAILED to run the application:', error);
     process.exitCode = 1;
 });
@@ -192,14 +191,14 @@ async function getAssetsByRange(contract: Contract): Promise<void> {
     const resultBytes = await contract.evaluateTransaction(
         'GetAssetByRange',
         assetID1,
-        `asset${now + 2}`
+        `asset${String(now + 2)}`
     );
 
     const resultString = utf8Decoder.decode(resultBytes);
     if (!resultString) {
         doFail('Received empty query list for readAssetPrivateDetailsOrg1');
     }
-    const result = JSON.parse(resultString);
+    const result: unknown = JSON.parse(resultString);
     console.log('*** Result:', result);
 }
 
@@ -211,7 +210,7 @@ async function readAssetByID(contract: Contract, assetID: string): Promise<void>
     if (!resultString) {
         doFail('Received empty result for ReadAsset');
     }
-    const result = JSON.parse(resultString);
+    const result: unknown = JSON.parse(resultString);
     console.log('*** Result:', result);
 }
 
@@ -241,7 +240,7 @@ async function readTransferAgreement(contract: Contract, assetID: string): Promi
     if (!resultString) {
         doFail('Received no result for ReadTransferAgreement');
     }
-    const result = JSON.parse(resultString);
+    const result: unknown = JSON.parse(resultString);
     console.log('*** Result:', result);
 }
 
@@ -290,7 +289,7 @@ async function readAssetPrivateDetails(contract: Contract, assetID: string, coll
         console.log('*** No result');
         return false;
     }
-    const result = JSON.parse(resultJson);
+    const result: unknown = JSON.parse(resultJson);
     console.log('*** Result:', result);
     return true;
 }

asset-transfer-private-data/application-gateway-typescript/src/connect.ts

@@ -127,5 +127,9 @@ export async function newSigner(keyDirectoryPath: string): Promise<Signer> {
 
 async function getFirstDirFileName(dirPath: string): Promise<string> {
     const files = await fs.readdir(dirPath);
-    return path.join(dirPath, files[0]);
+    const file = files[0];
+    if (!file) {
+        throw new Error(`No files in directory: ${dirPath}`);
+    }
+    return path.join(dirPath, file);
 }

asset-transfer-private-data/application-gateway-typescript/tsconfig.json

@@ -1,17 +1,15 @@
 {
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
-       "experimentalDecorators": true,
-       "emitDecoratorMetadata": true,
         "outDir": "dist",
         "declaration": true,
+        "declarationMap": true,
         "sourceMap": true,
-       "noImplicitAny": true
+        "noUnusedLocals": true,
+        "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
+        "forceConsistentCasingInFileNames": true
     },
-   "include": [
-       "./src/**/*"
-   ],
-   "exclude": [
-       "./src/**/*.spec.ts"
-   ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }

asset-transfer-sbe/chaincode-typescript/npm-shrinkwrap.json

@@ -91,9 +91,9 @@
       }
     },
     "node_modules/@eslint/js": {
-      "version": "9.4.0",
-      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.4.0.tgz",
-      "integrity": "sha512-fdI7VJjP3Rvc70lC4xkFXHB0fiPeojiL1PxVG6t1ZvXQrarj893PweuBTujxDUFk0Fxj4R7PIIAZ/aiiyZPZcg==",
+      "version": "9.5.0",
+      "resolved": "https://registry.npmjs.org/@eslint/js/-/js-9.5.0.tgz",
+      "integrity": "sha512-A7+AOT2ICkodvtsWnxZP4Xxk3NbZ3VMHd8oihydLRGrJgqqdEz1qSeEgXYyT/Cu8h1TWWsQRejIx48mtjZ5y1w==",
       "dev": true,
       "engines": {
         "node": "^18.18.0 || ^20.9.0 || >=21.1.0"

asset-transfer-secured-agreement/application-gateway-typescript/.eslintrc.json

@@ -1,102 +0,0 @@
-{
-    "env": {
-      "node": true,
-      "es6": true
-    },
-    "root": true,
-    "ignorePatterns": [
-      "dist/"
-    ],
-    "extends": [
-      "eslint:recommended"
-    ],
-    "rules": {
-      "indent": [
-        "error",
-        4
-      ],
-      "quotes": [
-        "error",
-        "single"
-      ]
-    },
-    "overrides": [
-      {
-        "files": [
-          "**/*.ts"
-        ],
-        "parser": "@typescript-eslint/parser",
-        "parserOptions": {
-          "sourceType": "module",
-          "ecmaFeatures": {
-            "impliedStrict": true
-          },
-          "project": [
-            "./tsconfig.json"
-          ]
-        },
-        "plugins": [
-          "@typescript-eslint"
-        ],
-        "extends": [
-          "eslint:recommended",
-          "plugin:@typescript-eslint/eslint-recommended",
-          "plugin:@typescript-eslint/recommended"
-        ],
-        "rules": {
-          "@typescript-eslint/comma-spacing": [
-            "error"
-          ],
-          "@typescript-eslint/explicit-function-return-type": [
-            "error",
-            {
-              "allowExpressions": true
-            }
-          ],
-          "@typescript-eslint/func-call-spacing": [
-            "error"
-          ],
-          "@typescript-eslint/member-delimiter-style": [
-            "error"
-          ],
-          "@typescript-eslint/indent": [
-            "error",
-            4,
-            {
-              "SwitchCase": 0
-            }
-          ],
-          "@typescript-eslint/prefer-nullish-coalescing": [
-            "error"
-          ],
-          "@typescript-eslint/prefer-optional-chain": [
-            "error"
-          ],
-          "@typescript-eslint/prefer-reduce-type-parameter": [
-            "error"
-          ],
-          "@typescript-eslint/prefer-return-this-type": [
-            "error"
-          ],
-          "@typescript-eslint/quotes": [
-            "error",
-            "single"
-          ],
-          "@typescript-eslint/type-annotation-spacing": [
-            "error"
-          ],
-          "@typescript-eslint/semi": [
-            "error"
-          ],
-          "@typescript-eslint/space-before-function-paren": [
-            "error",
-            {
-              "anonymous": "never",
-              "named": "never",
-              "asyncArrow": "always"
-            }
-          ]
-        }
-      }
-    ]
-  }

asset-transfer-secured-agreement/application-gateway-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

asset-transfer-secured-agreement/application-gateway-typescript/package.json

@@ -10,7 +10,7 @@
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc -w",
-        "lint": "eslint . --ext .ts",
+        "lint": "eslint src",
         "prepare": "npm run build",
         "pretest": "npm run lint",
         "start": "node dist/app.js"
@@ -19,15 +19,15 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0"
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5"
     },
     "devDependencies": {
+        "@eslint/js": "^9.3.0",
         "@tsconfig/node18": "^18.2.2",
         "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
-        "typescript": "~5.2.2"
+        "eslint": "^8.57.0",
+        "typescript": "~5.4",
+        "typescript-eslint": "^7.13.0"
     }
 }

asset-transfer-secured-agreement/application-gateway-typescript/src/app.ts

@@ -73,7 +73,7 @@ async function main(): Promise<void> {
         try {
             await contractWrapperOrg2.getAssetPrivateProperties(assetKey, mspIdOrg1);
         } catch (e) {
-            console.log(`${RED}*** Successfully caught the failure: getAssetPrivateProperties - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: getAssetPrivateProperties - ${String(e)}${RESET}`);
         }
 
         // Org1 updates the assets public description.
@@ -94,7 +94,7 @@ async function main(): Promise<void> {
                 ownerOrg: mspIdOrg1,
                 publicDescription: `Asset ${assetKey} owned by ${mspIdOrg2} is NOT for sale`});
         } catch(e) {
-            console.log(`${RED}*** Successfully caught the failure: changePublicDescription - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: changePublicDescription - ${String(e)}${RESET}`);
         }
 
         // Read the public details by org1.
@@ -126,14 +126,14 @@ async function main(): Promise<void> {
         try{
             await contractWrapperOrg2.getAssetSalesPrice(assetKey, mspIdOrg1);
         } catch(e) {
-            console.log(`${RED}*** Successfully caught the failure: getAssetSalesPrice - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: getAssetSalesPrice - ${String(e)}${RESET}`);
         }
 
         // Org1 has not agreed to buy so this should fail.
         try{
             await contractWrapperOrg1.getAssetBidPrice(assetKey, mspIdOrg2);
         } catch(e) {
-            console.log(`${RED}*** Successfully caught the failure: getAssetBidPrice - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: getAssetBidPrice - ${String(e)}${RESET}`);
         }
         // Org2 should be able to see the price it has agreed.
         await contractWrapperOrg2.getAssetBidPrice(assetKey, mspIdOrg2);
@@ -143,7 +143,7 @@ async function main(): Promise<void> {
         try{
             await contractWrapperOrg1.transferAsset({ assetId: assetKey, price: 110, tradeId: now}, [ mspIdOrg1, mspIdOrg2 ], mspIdOrg1, mspIdOrg2);
         } catch(e) {
-            console.log(`${RED}*** Successfully caught the failure: transferAsset - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: transferAsset - ${String(e)}${RESET}`);
         }
         // Agree to a sell by Org1, the seller will agree to the bid price of Org2.
         await contractWrapperOrg1.agreeToSell({assetId:assetKey, price:100, tradeId:now});
@@ -168,7 +168,7 @@ async function main(): Promise<void> {
         try{
             await contractWrapperOrg2.transferAsset({ assetId: assetKey, price: 100, tradeId: now}, [ mspIdOrg1, mspIdOrg2 ], mspIdOrg1, mspIdOrg2);
         } catch(e) {
-            console.log(`${RED}*** Successfully caught the failure: transferAsset - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: transferAsset - ${String(e)}${RESET}`);
         }
 
         // Org1 will transfer the asset to Org2.
@@ -188,7 +188,7 @@ async function main(): Promise<void> {
         try{
             await contractWrapperOrg1.getAssetPrivateProperties(assetKey, mspIdOrg2);
         } catch(e) {
-            console.log(`${RED}*** Successfully caught the failure: getAssetPrivateProperties - ${e}${RESET}`);
+            console.log(`${RED}*** Successfully caught the failure: getAssetPrivateProperties - ${String(e)}${RESET}`);
         }
 
         // This is an update to the public state and requires only the owner to endorse.
@@ -209,7 +209,7 @@ async function main(): Promise<void> {
     }
 }
 
-main().catch(error => {
+main().catch((error: unknown) => {
     console.error('******** FAILED to run the application:', error);
     process.exitCode = 1;
 });

asset-transfer-secured-agreement/application-gateway-typescript/src/connect.ts

@@ -103,5 +103,9 @@ export async function newSigner(keyDirectoryPath: string): Promise<Signer> {
 
 async function getFirstDirFileName(dirPath: string): Promise<string> {
     const files = await fs.readdir(dirPath);
-    return path.join(dirPath, files[0]);
+    const file = files[0];
+    if (!file) {
+        throw new Error(`No files in directory: ${dirPath}`);
+    }
+    return path.join(dirPath, file);
 }

asset-transfer-secured-agreement/application-gateway-typescript/src/contractWrapper.ts

@@ -6,10 +6,10 @@
 import { Contract } from '@hyperledger/fabric-gateway';
 import { TextDecoder } from 'util';
 import { GREEN, parse, RED, RESET } from './utils';
-import crpto from 'crypto';
+import crypto from 'crypto';
 import { mspIdOrg2 } from './connect';
 
-const randomBytes = crpto.randomBytes(256).toString('hex');
+const randomBytes = crypto.randomBytes(256).toString('hex');
 
 interface AssetJSON {
     objectType: string;
@@ -151,7 +151,7 @@ export class ContractWrapper {
             endorsingOrganizations: this.#endorsingOrgs[assetPrice.assetId]
         });
 
-        console.log(`*** Result: committed, ${this.#org} has agreed to sell asset ${assetPrice.assetId} for ${assetPrice.price}`);
+        console.log(`*** Result: committed, ${this.#org} has agreed to sell asset ${assetPrice.assetId} for ${String(assetPrice.price)}`);
     }
 
     public async verifyAssetProperties(assetId: string, assetProperties: AssetProperties): Promise<void> {
@@ -169,16 +169,11 @@ export class ContractWrapper {
         const resultString = this.#utf8Decoder.decode(resultBytes);
         if (resultString.length !== 0) {
             const json = parse<AssetPropertiesJSON>(resultString);
-            const result: AssetProperties =  {
-                color: json.color,
-                size: json.size
-            };
-            if (result) {
+            if (typeof json === 'object') {
                 console.log(`*** Success VerifyAssetProperties, private information about asset ${assetId} has been verified by ${this.#org}`);
             } else {
                 console.log(`*** Failed: VerifyAssetProperties, private information about asset ${assetId} has not been verified by ${this.#org}`);
             }
-
         } else {
             throw new Error(`Private information about asset ${assetId} has not been verified by ${this.#org}`);
         }

asset-transfer-secured-agreement/application-gateway-typescript/src/utils.ts

@@ -9,5 +9,5 @@ export const GREEN = '\x1b[32m\n';
 export const RESET = '\x1b[0m';
 
 export function parse<T>(data: string): T {
-    return JSON.parse(data);
+    return JSON.parse(data) as T;
 }

asset-transfer-secured-agreement/application-gateway-typescript/tsconfig.json

@@ -1,17 +1,15 @@
 {
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
-       "experimentalDecorators": true,
-       "emitDecoratorMetadata": true,
         "outDir": "dist",
         "declaration": true,
+        "declarationMap": true,
         "sourceMap": true,
-       "noImplicitAny": true
+        "noUnusedLocals": true,
+        "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
+        "forceConsistentCasingInFileNames": true
     },
-   "include": [
-       "./src/**/*"
-   ],
-   "exclude": [
-       "./src/**/*.spec.ts"
-   ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }

full-stack-asset-transfer-guide/applications/conga-cards/package.json

@@ -19,8 +19,8 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0",
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5",
         "axios": "^0.27.2",
         "source-map-support": "^0.5.21"
     },

full-stack-asset-transfer-guide/applications/ping-chaincode/package.json

@@ -18,8 +18,8 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0",
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5",
         "dotenv": "^16.0.1",
         "env-var": "^7.1.1",
         "js-yaml": "^4.1.0"

full-stack-asset-transfer-guide/applications/rest-api/package.json

@@ -29,8 +29,8 @@
     "typescript": "~5.2.2"
   },
   "dependencies": {
-    "@grpc/grpc-js": "^1.9.7",
-    "@hyperledger/fabric-gateway": "~1.4.0",
+    "@grpc/grpc-js": "^1.10",
+    "@hyperledger/fabric-gateway": "^1.5",
     "body-parser": "^1.18.3",
     "cors": "^2.8.5",
     "express": "^4.16.3"

full-stack-asset-transfer-guide/applications/trader-typescript/.eslintrc.js

@@ -1,99 +0,0 @@
-module.exports = {
-    env: {
-        node: true,
-        es2021: true,
-    },
-    extends: [
-        'eslint:recommended',
-    ],
-    root: true,
-    ignorePatterns: [
-        'dist/',
-    ],
-    rules: {
-        'arrow-spacing': ['error'],
-        'comma-style': ['error'],
-        complexity: ['error', 10],
-        'eol-last': ['error'],
-        'generator-star-spacing': ['error', 'after'],
-        'key-spacing': [
-            'error',
-            {
-                beforeColon: false,
-                afterColon: true,
-                mode: 'minimum',
-            },
-        ],
-        'keyword-spacing': ['error'],
-        'no-multiple-empty-lines': ['error'],
-        'no-trailing-spaces': ['error'],
-        'no-whitespace-before-property': ['error'],
-        'object-curly-newline': ['error'],
-        'padded-blocks': ['error', 'never'],
-        'rest-spread-spacing': ['error'],
-        'semi-style': ['error'],
-        'space-before-blocks': ['error'],
-        'space-in-parens': ['error'],
-        'space-unary-ops': ['error'],
-        'spaced-comment': ['error'],
-        'template-curly-spacing': ['error'],
-        'yield-star-spacing': ['error', 'after'],
-    },
-    overrides: [
-        {
-            files: [
-                '**/*.ts',
-            ],
-            parser: '@typescript-eslint/parser',
-            parserOptions: {
-                sourceType: 'module',
-                ecmaFeatures: {
-                    impliedStrict: true,
-                },
-                project: './tsconfig.json',
-                tsconfigRootDir: process.env.TSCONFIG_ROOT_DIR || __dirname,
-            },
-            plugins: [
-                '@typescript-eslint',
-            ],
-            extends: [
-                'eslint:recommended',
-                'plugin:@typescript-eslint/recommended',
-                'plugin:@typescript-eslint/recommended-requiring-type-checking',
-            ],
-            rules: {
-                '@typescript-eslint/comma-spacing': ['error'],
-                '@typescript-eslint/explicit-function-return-type': [
-                    'error',
-                    {
-                        allowExpressions: true,
-                    },
-                ],
-                '@typescript-eslint/func-call-spacing': ['error'],
-                '@typescript-eslint/member-delimiter-style': ['error'],
-                '@typescript-eslint/indent': [
-                    'error',
-                    4,
-                    {
-                        SwitchCase: 0,
-                    },
-                ],
-                '@typescript-eslint/prefer-nullish-coalescing': ['error'],
-                '@typescript-eslint/prefer-optional-chain': ['error'],
-                '@typescript-eslint/prefer-reduce-type-parameter': ['error'],
-                '@typescript-eslint/prefer-return-this-type': ['error'],
-                '@typescript-eslint/quotes': ['error', 'single'],
-                '@typescript-eslint/type-annotation-spacing': ['error'],
-                '@typescript-eslint/semi': ['error'],
-                '@typescript-eslint/space-before-function-paren': [
-                    'error',
-                    {
-                        anonymous: 'never',
-                        named: 'never',
-                        asyncArrow: 'always',
-                    },
-                ],
-            },
-        },
-    ],
-};

full-stack-asset-transfer-guide/applications/trader-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

full-stack-asset-transfer-guide/applications/trader-typescript/package.json

@@ -10,7 +10,7 @@
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc -w",
-        "lint": "eslint ./src",
+        "lint": "eslint src",
         "prepare": "npm run build",
         "pretest": "npm run lint",
         "start": "node ./dist/app",
@@ -19,15 +19,15 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0"
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5"
     },
     "devDependencies": {
-        "@tsconfig/node18": "^18.2.2",
-        "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
-        "typescript": "~5.2.2"
+        "@types/node": "^18.19.33",
+        "@eslint/js": "^9.3.0",
+        "@tsconfig/node18": "^18.2.4",
+        "eslint": "^8.57.0",
+        "typescript": "~5.4.5",
+        "typescript-eslint": "^7.11.0"
      }
 }

full-stack-asset-transfer-guide/applications/trader-typescript/src/app.ts

@@ -12,10 +12,10 @@ async function main(): Promise<void> {
     const commandName = process.argv[2];
     const args = process.argv.slice(3);
 
-    const command = commands[commandName];
+    const command = commandName && commands[commandName];
     if (!command) {
         printUsage();
-        throw new Error(`Unknown command: ${commandName}`);
+        throw new Error(`Unknown command: ${String(commandName)}`);
     }
 
     await runCommand(command, args);
@@ -41,7 +41,7 @@ function printUsage(): void {
     console.log(`\t${Object.keys(commands).sort().join('\n\t')}`);
 }
 
-main().catch(error => {
+main().catch((error: unknown) => {
     if (error instanceof ExpectedError) {
         console.log(error);
     } else {

full-stack-asset-transfer-guide/applications/trader-typescript/src/commands/create.ts

@@ -7,10 +7,14 @@
 import { Gateway } from '@hyperledger/fabric-gateway';
 import { CHAINCODE_NAME, CHANNEL_NAME } from '../config';
 import { AssetTransfer } from '../contract';
-import { assertAllDefined } from '../utils';
+import { assertDefined } from '../utils';
+
+const usage = 'Arguments: <assetId> <ownerName> <color>';
 
 export default async function main(gateway: Gateway, args: string[]): Promise<void> {
-    const [assetId, owner, color] = assertAllDefined([args[0], args[1], args[2]], 'Arguments: <assetId> <ownerName> <color>');
+    const assetId = assertDefined(args[0], usage);
+    const owner = assertDefined(args[1], usage);
+    const color = assertDefined(args[2], usage);
 
     const network = gateway.getNetwork(CHANNEL_NAME);
     const contract = network.getContract(CHAINCODE_NAME);

full-stack-asset-transfer-guide/applications/trader-typescript/src/commands/getAllAssets.ts

@@ -16,5 +16,8 @@ export default async function main(gateway: Gateway): Promise<void> {
     const assets = await smartContract.getAllAssets();
 
     const assetsJson = JSON.stringify(assets, undefined, 2);
-    assetsJson.split('\n').forEach(line => console.log(line)); // Write line-by-line to avoid truncation
+    // Write line-by-line to avoid truncation
+    assetsJson.split('\n').forEach((line) => {
+        console.log(line);
+    });
 }

full-stack-asset-transfer-guide/applications/trader-typescript/src/commands/listen.ts

@@ -19,10 +19,10 @@ export default async function main(gateway: Gateway): Promise<void> {
     const network = gateway.getNetwork(CHANNEL_NAME);
     const checkpointer = await checkpointers.file(checkpointFile);
 
-    console.log(`Starting event listening from block ${checkpointer.getBlockNumber() ?? startBlock}`);
+    console.log('Starting event listening from block', checkpointer.getBlockNumber() ?? startBlock);
     console.log('Last processed transaction ID within block:', checkpointer.getTransactionId());
     if (simulatedFailureCount > 0) {
-        console.log(`Simulating a write failure every ${simulatedFailureCount} transactions`);
+        console.log('Simulating a write failure every', simulatedFailureCount, 'transactions');
     }
 
     const events = await network.getChaincodeEvents(CHAINCODE_NAME, {

full-stack-asset-transfer-guide/applications/trader-typescript/src/commands/transfer.ts

@@ -7,10 +7,14 @@
 import { Gateway } from '@hyperledger/fabric-gateway';
 import { CHAINCODE_NAME, CHANNEL_NAME } from '../config';
 import { AssetTransfer } from '../contract';
-import { assertAllDefined } from '../utils';
+import { assertDefined } from '../utils';
+
+const usage = 'Arguments: <assetId> <ownerName> <ownerMspId>';
 
 export default async function main(gateway: Gateway, args: string[]): Promise<void> {
-    const [assetId, newOwner, newOwnerOrg] = assertAllDefined([args[0], args[1], args[2]], 'Arguments: <assetId> <ownerName> <ownerMspId>');
+    const assetId = assertDefined(args[0], usage);
+    const newOwner = assertDefined(args[1], usage);
+    const newOwnerOrg = assertDefined(args[2], usage);
 
     const network = gateway.getNetwork(CHANNEL_NAME);
     const contract = network.getContract(CHAINCODE_NAME);

full-stack-asset-transfer-guide/applications/trader-typescript/src/utils.ts

@@ -13,7 +13,8 @@ const utf8Decoder = new TextDecoder();
  * @param values Candidate elements.
  */
 export function randomElement<T>(values: T[]): T {
-    return values[randomInt(values.length)];
+    const result = values[randomInt(values.length)];
+    return assertDefined(result, `Missing element in {String(values)}`);
 }
 
 /**
@@ -47,7 +48,7 @@ export async function allFulfilled(promises: Promise<unknown>[]): Promise<void>
 
     if (failures.length > 0) {
         const failMessages = '- ' + failures.join('\n- ');
-        throw new Error(`${failures.length} failures:\n${failMessages}\n`);
+        throw new Error(`${String(failures.length)} failures:\n${failMessages}\n`);
     }
 }
 
@@ -61,11 +62,6 @@ export function printable<T extends object>(event: T): PrintView<T> {
     ) as PrintView<T>;
 }
 
-export function assertAllDefined<T>(values: (T | undefined)[], message: string | (() => string)): T[] {
-    values.forEach(value => assertDefined(value, message));
-    return values as T[];
-}
-
 export function assertDefined<T>(value: T | undefined, message: string | (() => string)): T {
     if (value == undefined) {
         throw new Error(typeof message === 'string' ? message : message());

full-stack-asset-transfer-guide/applications/trader-typescript/tsconfig.json

@@ -1,19 +1,15 @@
 {
-    "$schema": "https://json.schemastore.org/tsconfig",
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
+        "outDir": "dist",
         "declaration": true,
         "declarationMap": true,
         "sourceMap": true,
-        "outDir": "dist",
-        "rootDir": "src",
         "noUnusedLocals": true,
-        "noImplicitReturns": true
+        "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
+        "forceConsistentCasingInFileNames": true
     },
-    "include": [
-        "src/"
-    ],
-    "exclude": [
-        "src/**/*.spec.ts"
-    ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/.eslintrc.js

@@ -1,101 +0,0 @@
-module.exports = {
-    env: {
-        node: true,
-        es2021: true,
-    },
-    extends: [
-        'eslint:recommended',
-    ],
-    root: true,
-    ignorePatterns: [
-        'dist/',
-    ],
-    rules: {
-        'arrow-spacing': ['error'],
-        'comma-style': ['error'],
-        complexity: ['error', 10],
-        'eol-last': ['error'],
-        'generator-star-spacing': ['error', 'after'],
-        'key-spacing': [
-            'error',
-            {
-                beforeColon: false,
-                afterColon: true,
-                mode: 'minimum',
-            },
-        ],
-        'keyword-spacing': ['error'],
-        'no-multiple-empty-lines': ['error'],
-        'no-trailing-spaces': ['error'],
-        'no-whitespace-before-property': ['error'],
-        'object-curly-newline': ['error'],
-        'padded-blocks': ['error', 'never'],
-        'rest-spread-spacing': ['error'],
-        'semi-style': ['error'],
-        'space-before-blocks': ['error'],
-        'space-in-parens': ['error'],
-        'space-unary-ops': ['error'],
-        'spaced-comment': ['error'],
-        'template-curly-spacing': ['error'],
-        'yield-star-spacing': ['error', 'after'],
-    },
-    overrides: [
-        {
-            files: [
-                '**/*.ts',
-            ],
-            parser: '@typescript-eslint/parser',
-            parserOptions: {
-                sourceType: 'module',
-                ecmaFeatures: {
-                    impliedStrict: true,
-                },
-                project: './tsconfig.json',
-                tsconfigRootDir: process.env.TSCONFIG_ROOT_DIR || __dirname,
-            },
-            plugins: [
-                '@typescript-eslint',
-            ],
-            extends: [
-                'eslint:recommended',
-                'plugin:@typescript-eslint/recommended',
-                'plugin:@typescript-eslint/recommended-requiring-type-checking',
-            ],
-            rules: {
-                '@typescript-eslint/comma-spacing': ['error'],
-                '@typescript-eslint/explicit-function-return-type': [
-                    'error',
-                    {
-                        allowExpressions: true,
-                    },
-                ],
-                '@typescript-eslint/func-call-spacing': ['error'],
-                '@typescript-eslint/member-delimiter-style': ['error'],
-                '@typescript-eslint/indent': [
-                    'error',
-                    4,
-                    {
-                        SwitchCase: 0,
-                        ignoredNodes: ["PropertyDefinition"]
-                    },
-                ],
-
-                '@typescript-eslint/prefer-nullish-coalescing': ['error'],
-                '@typescript-eslint/prefer-optional-chain': ['error'],
-                '@typescript-eslint/prefer-reduce-type-parameter': ['error'],
-                '@typescript-eslint/prefer-return-this-type': ['error'],
-                '@typescript-eslint/quotes': ['error', 'single'],
-                '@typescript-eslint/type-annotation-spacing': ['error'],
-                '@typescript-eslint/semi': ['error'],
-                '@typescript-eslint/space-before-function-paren': [
-                    'error',
-                    {
-                        anonymous: 'never',
-                        named: 'never',
-                        asyncArrow: 'always',
-                    },
-                ],
-            },
-        },
-    ],
-};

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/.gitignore

@@ -10,7 +10,6 @@ coverage
 node_modules/
 jspm_packages/
 package-lock.json
-npm-shrinkwrap.json
 
 # Compiled TypeScript files
 dist

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/Dockerfile

@@ -1,7 +1,7 @@
 #
 # SPDX-License-Identifier: Apache-2.0
 #
-FROM node:18.16 AS builder
+FROM node:18 AS builder
 
 WORKDIR /usr/src/app
 

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/package.json

@@ -5,10 +5,10 @@
     "main": "dist/index.js",
     "typings": "dist/index.d.ts",
     "engines": {
-        "node": ">=18.12.0"
+        "node": ">=18"
     },
     "scripts": {
-        "lint": "eslint ./src --ext .ts",
+        "lint": "eslint src",
         "pretest": "npm run lint",
         "test": "",
         "start": "set -x && fabric-chaincode-node start",
@@ -32,12 +32,12 @@
         "sort-keys-recursive": "^2.1.7"
     },
     "devDependencies": {
-        "@tsconfig/node18": "^2.0.0",
-        "@types/node": "^18.16.1",
-        "@typescript-eslint/eslint-plugin": "^5.30.7",
-        "@typescript-eslint/parser": "^5.30.7",
-        "eslint": "^8.20.0",
-        "typescript": "~5.0.4"
+        "@types/node": "^18.19.33",
+        "@eslint/js": "^9.3.0",
+        "@tsconfig/node18": "^18.2.4",
+        "eslint": "^8.57.0",
+        "typescript": "~5.4.5",
+        "typescript-eslint": "^7.11.0"
     },
     "nyc": {
         "extension": [

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/src/asset.ts

@@ -21,10 +21,6 @@ export class Asset {
     @Property('Size', 'number')
     Size = 0;
 
-    constructor() {
-        // Nothing to do
-    }
-
     static newInstance(state: Partial<Asset> = {}): Asset {
         return {
             ID: assertHasValue(state.ID, 'Missing ID'),

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/src/assetTransfer.ts

@@ -50,7 +50,7 @@ export class AssetTransferContract extends Contract {
 
     async #readAsset(ctx: Context, id: string): Promise<Uint8Array> {
         const assetBytes = await ctx.stub.getState(id); // get the asset from chaincode state
-        if (!assetBytes || assetBytes.length === 0) {
+        if (assetBytes.length === 0) {
             throw new Error(`Sorry, asset ${id} has not been created`);
         }
 
@@ -64,7 +64,7 @@ export class AssetTransferContract extends Contract {
     @Transaction()
     @Param('assetObj', 'Asset', 'Part formed JSON of Asset')
     async UpdateAsset(ctx: Context, assetUpdate: Asset): Promise<void> {
-        if (assetUpdate.ID === undefined) {
+        if (!assetUpdate.ID) {
             throw new Error('No asset ID specified');
         }
 
@@ -113,7 +113,7 @@ export class AssetTransferContract extends Contract {
     @Returns('boolean')
     async AssetExists(ctx: Context, id: string): Promise<boolean> {
         const assetJson = await ctx.stub.getState(id);
-        return assetJson?.length > 0;
+        return assetJson.length > 0;
     }
 
     /**

full-stack-asset-transfer-guide/contracts/asset-transfer-typescript/tsconfig.json

@@ -4,16 +4,14 @@
     "compilerOptions": {
         "experimentalDecorators": true,
         "emitDecoratorMetadata": true,
-        "outDir": "dist",
         "declaration": true,
+        "declarationMap": true,
         "sourceMap": true,
+        "outDir": "dist",
+        "strict": true,
         "noUnusedLocals": true,
-        "noImplicitReturns": true
+        "noImplicitReturns": true,
+        "forceConsistentCasingInFileNames": true
     },
-    "include": [
-        "./src/**/*"
-    ],
-    "exclude": [
-        "./src/**/*.spec.ts"
-    ]
+    "include": ["src/"]
 }

hardware-security-module/application-typescript/.eslintrc.yaml

@@ -1,29 +0,0 @@
-env:
-    node: true
-    es2020: true
-root: true
-ignorePatterns:
-    - dist/
-extends:
-    - eslint:recommended
-rules:
-    indent:
-        - error
-        - 4
-    quotes:
-        - error
-        - single
-overrides:
-    - files:
-          - "**/*.ts"
-      parser: "@typescript-eslint/parser"
-      parserOptions:
-          sourceType: module
-          ecmaFeatures:
-              impliedStrict: true
-      plugins:
-          - "@typescript-eslint"
-      extends:
-          - eslint:recommended
-          - plugin:@typescript-eslint/eslint-recommended
-          - plugin:@typescript-eslint/recommended

hardware-security-module/application-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

hardware-security-module/application-typescript/package.json

@@ -10,24 +10,24 @@
         "build": "tsc",
         "prepare": "npm run build",
         "clean": "rimraf dist",
-        "lint": "eslint . --ext .ts",
+        "lint": "eslint src",
         "start": "SOFTHSM2_CONF=${HOME}/softhsm2.conf node dist/hsm-sample.js",
         "test": "echo \"Error: no test specified\" && exit 1"
     },
     "author": "",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0"
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5"
     },
     "devDependencies": {
-        "@tsconfig/node18": "^18.2.2",
-        "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
+        "@types/node": "^18.19.33",
+        "@eslint/js": "^9.3.0",
+        "@tsconfig/node18": "^18.2.4",
+        "eslint": "^8.57.0",
         "npm-run-all": "^4.1.5",
         "rimraf": "^5.0.1",
-        "typescript": "~5.2.2"
+        "typescript": "~5.4.5",
+        "typescript-eslint": "^7.11.0"
     }
 }

hardware-security-module/application-typescript/src/hsm-sample.ts

@@ -13,7 +13,7 @@ import { TextDecoder } from 'util';
 
 const mspId = 'Org1MSP';
 const user = 'HSMUser';
-const assetId = `asset${Date.now()}`;
+const assetId = `asset${String(Date.now())}`;
 const utf8Decoder = new TextDecoder();
 
 // Sample uses fabric-ca-client generated HSM identities, certificate is located in the signcerts directory
@@ -85,7 +85,7 @@ async function exampleTransaction(gateway: Gateway):Promise<void> {
     const resultBytes = await contract.evaluateTransaction('ReadAsset', assetId);
 
     const resultJson = utf8Decoder.decode(resultBytes);
-    const result = JSON.parse(resultJson);
+    const result: unknown = JSON.parse(resultJson);
     console.log('*** Result:', result);
 }
 
@@ -167,7 +167,7 @@ function envOrDefault(key: string, defaultValue: string): string {
     return process.env[key] || defaultValue;
 }
 
-main().catch(error => {
+main().catch((error: unknown) => {
     console.error('******** FAILED to run the application:', error);
     process.exitCode = 1;
 });

hardware-security-module/application-typescript/tsconfig.json

@@ -1,18 +1,15 @@
 {
-    "$schema": "https://json.schemastore.org/tsconfig",
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
+        "outDir": "dist",
         "declaration": true,
         "declarationMap": true,
         "sourceMap": true,
-        "outDir": "dist",
-        "rootDir": "src",
-        "strict": true,
         "noUnusedLocals": true,
         "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
         "forceConsistentCasingInFileNames": true
     },
-    "include": [
-        "src/"
-    ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }

off_chain_data/application-typescript/.eslintrc.js

@@ -1,99 +0,0 @@
-module.exports = {
-    env: {
-        node: true,
-        es2020: true,
-    },
-    extends: [
-        'eslint:recommended',
-    ],
-    root: true,
-    ignorePatterns: [
-        'dist/',
-    ],
-    rules: {
-        'arrow-spacing': ['error'],
-        'comma-style': ['error'],
-        complexity: ['error', 10],
-        'eol-last': ['error'],
-        'generator-star-spacing': ['error', 'after'],
-        'key-spacing': [
-            'error',
-            {
-                beforeColon: false,
-                afterColon: true,
-                mode: 'minimum',
-            },
-        ],
-        'keyword-spacing': ['error'],
-        'no-multiple-empty-lines': ['error'],
-        'no-trailing-spaces': ['error'],
-        'no-whitespace-before-property': ['error'],
-        'object-curly-newline': ['error'],
-        'padded-blocks': ['error', 'never'],
-        'rest-spread-spacing': ['error'],
-        'semi-style': ['error'],
-        'space-before-blocks': ['error'],
-        'space-in-parens': ['error'],
-        'space-unary-ops': ['error'],
-        'spaced-comment': ['error'],
-        'template-curly-spacing': ['error'],
-        'yield-star-spacing': ['error', 'after'],
-    },
-    overrides: [
-        {
-            files: [
-                '**/*.ts',
-            ],
-            parser: '@typescript-eslint/parser',
-            parserOptions: {
-                sourceType: 'module',
-                ecmaFeatures: {
-                    impliedStrict: true,
-                },
-                project: './tsconfig.json',
-                tsconfigRootDir: process.env.TSCONFIG_ROOT_DIR || __dirname,
-            },
-            plugins: [
-                '@typescript-eslint',
-            ],
-            extends: [
-                'eslint:recommended',
-                'plugin:@typescript-eslint/recommended',
-                'plugin:@typescript-eslint/recommended-requiring-type-checking',
-            ],
-            rules: {
-                '@typescript-eslint/comma-spacing': ['error'],
-                '@typescript-eslint/explicit-function-return-type': [
-                    'error',
-                    {
-                        allowExpressions: true,
-                    },
-                ],
-                '@typescript-eslint/func-call-spacing': ['error'],
-                '@typescript-eslint/member-delimiter-style': ['error'],
-                '@typescript-eslint/indent': [
-                    'error',
-                    4,
-                    {
-                        SwitchCase: 0,
-                    },
-                ],
-                '@typescript-eslint/prefer-nullish-coalescing': ['error'],
-                '@typescript-eslint/prefer-optional-chain': ['error'],
-                '@typescript-eslint/prefer-reduce-type-parameter': ['error'],
-                '@typescript-eslint/prefer-return-this-type': ['error'],
-                '@typescript-eslint/quotes': ['error', 'single'],
-                '@typescript-eslint/type-annotation-spacing': ['error'],
-                '@typescript-eslint/semi': ['error'],
-                '@typescript-eslint/space-before-function-paren': [
-                    'error',
-                    {
-                        anonymous: 'never',
-                        named: 'never',
-                        asyncArrow: 'always',
-                    },
-                ],
-            },
-        },
-    ],
-};

off_chain_data/application-typescript/eslint.config.mjs

@@ -0,0 +1,13 @@
+import js from '@eslint/js';
+import tseslint from 'typescript-eslint';
+
+export default tseslint.config(js.configs.recommended, ...tseslint.configs.strictTypeChecked, {
+    languageOptions: {
+        ecmaVersion: 2023,
+        sourceType: 'module',
+        parserOptions: {
+            project: 'tsconfig.json',
+            tsconfigRootDir: import.meta.dirname,
+        },
+    },
+});

off_chain_data/application-typescript/package.json

@@ -10,7 +10,7 @@
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc -w",
-        "lint": "eslint ./src --ext .ts",
+        "lint": "eslint src",
         "prepare": "npm run build",
         "pretest": "npm run lint",
         "start": "node ./dist/app"
@@ -18,16 +18,16 @@
     "author": "Hyperledger",
     "license": "Apache-2.0",
     "dependencies": {
-        "@grpc/grpc-js": "^1.9.7",
-        "@hyperledger/fabric-gateway": "~1.4.0",
+        "@grpc/grpc-js": "^1.10",
+        "@hyperledger/fabric-gateway": "^1.5",
         "@hyperledger/fabric-protos": "^0.2.1"
     },
     "devDependencies": {
-        "@tsconfig/node18": "^18.2.2",
-        "@types/node": "^18.18.6",
-        "@typescript-eslint/eslint-plugin": "^6.9.0",
-        "@typescript-eslint/parser": "^6.9.0",
-        "eslint": "^8.52.0",
-        "typescript": "~5.2.2"
+        "@types/node": "^18.19.33",
+        "@eslint/js": "^9.3.0",
+        "@tsconfig/node18": "^18.2.4",
+        "eslint": "^8.57.0",
+        "typescript": "~5.4.5",
+        "typescript-eslint": "^7.11.0"
      }
 }

off_chain_data/application-typescript/src/app.ts

@@ -47,7 +47,7 @@ function printUsage(): void {
     console.log('Available commands:', Object.keys(allCommands).join(', '));
 }
 
-main().catch(error => {
+main().catch((error: unknown) => {
     if (error instanceof ExpectedError) {
         console.log(error);
     } else {

off_chain_data/application-typescript/src/blockParser.ts

@@ -35,10 +35,18 @@ export function parseBlock(block: common.Block): Block {
 
     return {
         getNumber: () => BigInt(header.getNumber()),
-        getTransactions: cache(
-            () => getPayloads(block)
-                .map((payload, i) => parsePayload(payload, validationCodes[i]))
-                .filter(payload => payload.isEndorserTransaction())
+        getTransactions: cache(() =>
+            getPayloads(block)
+                .map((payload, i) =>
+                    parsePayload(
+                        payload,
+                        assertDefined(
+                            validationCodes[i],
+                            `Missing validation code index {String(i)}`
+                        )
+                    )
+                )
+                .filter((payload) => payload.isEndorserTransaction())
                 .map(newTransaction)
         ),
         toProto: () => block,
@@ -67,15 +75,23 @@ interface ReadWriteSet {
 
 function parsePayload(payload: common.Payload, statusCode: number): Payload {
     const cachedChannelHeader = cache(() => getChannelHeader(payload));
-    const isEndorserTransaction = (): boolean => cachedChannelHeader().getType() === common.HeaderType.ENDORSER_TRANSACTION;
+    const isEndorserTransaction = (): boolean =>
+        cachedChannelHeader().getType() ===
+        common.HeaderType.ENDORSER_TRANSACTION;
 
     return {
         getChannelHeader: cachedChannelHeader,
         getEndorserTransaction: () => {
             if (!isEndorserTransaction()) {
-                throw new Error(`Unexpected payload type: ${cachedChannelHeader().getType()}`);
+                throw new Error(
+                    `Unexpected payload type: ${String(
+                        cachedChannelHeader().getType()
+                    )}`
+                );
             }
-            const transaction = peer.Transaction.deserializeBinary(payload.getData_asU8());
+            const transaction = peer.Transaction.deserializeBinary(
+                payload.getData_asU8()
+            );
             return parseEndorserTransaction(transaction);
         },
         getSignatureHeader: cache(() => getSignatureHeader(payload)),
@@ -86,16 +102,33 @@ function parsePayload(payload: common.Payload, statusCode: number): Payload {
     };
 }
 
-function parseEndorserTransaction(transaction: peer.Transaction): EndorserTransaction {
+function parseEndorserTransaction(
+    transaction: peer.Transaction
+): EndorserTransaction {
     return {
-        getReadWriteSets: cache(
-            () => getChaincodeActionPayloads(transaction)
-                .map(payload => assertDefined(payload.getAction(), 'Missing chaincode endorsed action'))
-                .map(endorsedAction => endorsedAction.getProposalResponsePayload_asU8())
-                .map(bytes => peer.ProposalResponsePayload.deserializeBinary(bytes))
-                .map(responsePayload => peer.ChaincodeAction.deserializeBinary(responsePayload.getExtension_asU8()))
-                .map(chaincodeAction => chaincodeAction.getResults_asU8())
-                .map(bytes => ledger.rwset.TxReadWriteSet.deserializeBinary(bytes))
+        getReadWriteSets: cache(() =>
+            getChaincodeActionPayloads(transaction)
+                .map((payload) =>
+                    assertDefined(
+                        payload.getAction(),
+                        'Missing chaincode endorsed action'
+                    )
+                )
+                .map((endorsedAction) =>
+                    endorsedAction.getProposalResponsePayload_asU8()
+                )
+                .map((bytes) =>
+                    peer.ProposalResponsePayload.deserializeBinary(bytes)
+                )
+                .map((responsePayload) =>
+                    peer.ChaincodeAction.deserializeBinary(
+                        responsePayload.getExtension_asU8()
+                    )
+                )
+                .map((chaincodeAction) => chaincodeAction.getResults_asU8())
+                .map((bytes) =>
+                    ledger.rwset.TxReadWriteSet.deserializeBinary(bytes)
+                )
                 .map(parseReadWriteSet)
         ),
         toProto: () => transaction,
@@ -109,67 +142,88 @@ function newTransaction(payload: Payload): Transaction {
         getChannelHeader: () => payload.getChannelHeader(),
         getCreator: () => {
             const creatorBytes = payload.getSignatureHeader().getCreator_asU8();
-            const creator = msp.SerializedIdentity.deserializeBinary(creatorBytes);
+            const creator =
+                msp.SerializedIdentity.deserializeBinary(creatorBytes);
             return {
                 mspId: creator.getMspid(),
                 credentials: creator.getIdBytes_asU8(),
             };
         },
-        getNamespaceReadWriteSets: () => transaction.getReadWriteSets()
-            .flatMap(readWriteSet => readWriteSet.getNamespaceReadWriteSets()),
+        getNamespaceReadWriteSets: () =>
+            transaction
+                .getReadWriteSets()
+                .flatMap((readWriteSet) =>
+                    readWriteSet.getNamespaceReadWriteSets()
+                ),
         getValidationCode: () => payload.getTransactionValidationCode(),
         isValid: () => payload.isValid(),
         toProto: () => payload.toProto(),
     };
 }
 
-function parseReadWriteSet(readWriteSet: ledger.rwset.TxReadWriteSet): ReadWriteSet {
+function parseReadWriteSet(
+    readWriteSet: ledger.rwset.TxReadWriteSet
+): ReadWriteSet {
     return {
-        getNamespaceReadWriteSets: () => {
-            if (readWriteSet.getDataModel() !== ledger.rwset.TxReadWriteSet.DataModel.KV) {
-                throw new Error(`Unexpected read/write set data model: ${readWriteSet.getDataModel()}`);
-            }
-
-            return readWriteSet.getNsRwsetList().map(parseNamespaceReadWriteSet);
-        },
+        getNamespaceReadWriteSets: () =>
+            readWriteSet.getNsRwsetList().map(parseNamespaceReadWriteSet),
         toProto: () => readWriteSet,
     };
 }
 
-function parseNamespaceReadWriteSet(nsReadWriteSet: ledger.rwset.NsReadWriteSet): NamespaceReadWriteSet {
+function parseNamespaceReadWriteSet(
+    nsReadWriteSet: ledger.rwset.NsReadWriteSet
+): NamespaceReadWriteSet {
     return {
         getNamespace: () => nsReadWriteSet.getNamespace(),
-        getReadWriteSet: cache(
-            () => ledger.rwset.kvrwset.KVRWSet.deserializeBinary(nsReadWriteSet.getRwset_asU8())
+        getReadWriteSet: cache(() =>
+            ledger.rwset.kvrwset.KVRWSet.deserializeBinary(
+                nsReadWriteSet.getRwset_asU8()
+            )
         ),
         toProto: () => nsReadWriteSet,
     };
 }
 
 function getTransactionValidationCodes(block: common.Block): Uint8Array {
-    const metadata = assertDefined(block.getMetadata(), 'Missing block metadata');
-    return metadata.getMetadataList_asU8()[common.BlockMetadataIndex.TRANSACTIONS_FILTER];
+    const metadata = assertDefined(
+        block.getMetadata(),
+        'Missing block metadata'
+    );
+    return assertDefined(
+        metadata.getMetadataList_asU8()[
+            common.BlockMetadataIndex.TRANSACTIONS_FILTER
+        ],
+        'Missing transaction validation code'
+    );
 }
 
 function getPayloads(block: common.Block): common.Payload[] {
     return (block.getData()?.getDataList_asU8() ?? [])
-        .map(bytes => common.Envelope.deserializeBinary(bytes))
-        .map(envelope => envelope.getPayload_asU8())
-        .map(bytes => common.Payload.deserializeBinary(bytes));
+        .map((bytes) => common.Envelope.deserializeBinary(bytes))
+        .map((envelope) => envelope.getPayload_asU8())
+        .map((bytes) => common.Payload.deserializeBinary(bytes));
 }
 
 function getChannelHeader(payload: common.Payload): common.ChannelHeader {
     const header = assertDefined(payload.getHeader(), 'Missing payload header');
-    return common.ChannelHeader.deserializeBinary(header.getChannelHeader_asU8());
+    return common.ChannelHeader.deserializeBinary(
+        header.getChannelHeader_asU8()
+    );
 }
 
 function getSignatureHeader(payload: common.Payload): common.SignatureHeader {
     const header = assertDefined(payload.getHeader(), 'Missing payload header');
-    return common.SignatureHeader.deserializeBinary(header.getSignatureHeader_asU8());
+    return common.SignatureHeader.deserializeBinary(
+        header.getSignatureHeader_asU8()
+    );
 }
 
-function getChaincodeActionPayloads(transaction: peer.Transaction): peer.ChaincodeActionPayload[] {
-    return transaction.getActionsList()
-        .map(transactionAction => transactionAction.getPayload_asU8())
-        .map(bytes => peer.ChaincodeActionPayload.deserializeBinary(bytes));
+function getChaincodeActionPayloads(
+    transaction: peer.Transaction
+): peer.ChaincodeActionPayload[] {
+    return transaction
+        .getActionsList()
+        .map((transactionAction) => transactionAction.getPayload_asU8())
+        .map((bytes) => peer.ChaincodeActionPayload.deserializeBinary(bytes));
 }

off_chain_data/application-typescript/src/connect.ts

@@ -70,10 +70,11 @@ async function newIdentity(): Promise<Identity> {
 
 async function newSigner(): Promise<Signer> {
     const keyFiles = await fs.readdir(keyDirectoryPath);
-    if (keyFiles.length === 0) {
+    const keyFile = keyFiles[0];
+    if (!keyFile) {
         throw new Error(`No private key files found in directory ${keyDirectoryPath}`);
     }
-    const keyPath = path.resolve(keyDirectoryPath, keyFiles[0]);
+    const keyPath = path.resolve(keyDirectoryPath, keyFile);
     const privateKeyPem = await fs.readFile(keyPath);
     const privateKey = crypto.createPrivateKey(privateKeyPem);
     return signers.newPrivateKeySigner(privateKey);

off_chain_data/application-typescript/src/getAllAssets.ts

@@ -20,7 +20,10 @@ export async function main(client: Client): Promise<void> {
         const smartContract = new AssetTransferBasic(contract);
         const assets = await smartContract.getAllAssets();
         const assetsJson = JSON.stringify(assets, undefined, 2);
-        assetsJson.split('\n').forEach(line => console.log(line)); // Write line-by-line to avoid truncation
+        // Write line-by-line to avoid truncation
+        assetsJson.split('\n').forEach((line) => {
+            console.log(line);
+        });
     } finally {
         gateway.close();
     }

off_chain_data/application-typescript/src/listen.ts

@@ -87,10 +87,10 @@ export async function main(client: Client): Promise<void> {
         const network = gateway.getNetwork(channelName);
         const checkpointer = await checkpointers.file(checkpointFile);
 
-        console.log(`Starting event listening from block ${checkpointer.getBlockNumber() ?? startBlock}`);
+        console.log('Starting event listening from block', checkpointer.getBlockNumber() ?? startBlock);
         console.log('Last processed transaction ID within block:', checkpointer.getTransactionId());
         if (simulatedFailureCount > 0) {
-            console.log(`Simulating a write failure every ${simulatedFailureCount} transactions`);
+            console.log('Simulating a write failure every', simulatedFailureCount, 'transactions');
         }
 
         const blocks = await network.getBlockEvents({
@@ -135,7 +135,7 @@ class BlockProcessor {
     async process(): Promise<void> {
         const blockNumber = this.#block.getNumber();
 
-        console.log(`\nReceived block ${blockNumber}`);
+        console.log(`\nReceived block ${String(blockNumber)}`);
 
         const validTransactions = this.#getNewTransactions()
             .filter(transaction => transaction.isValid());
@@ -168,7 +168,7 @@ class BlockProcessor {
         const blockTransactionIds = transactions.map(transaction => transaction.getChannelHeader().getTxId());
         const lastProcessedIndex = blockTransactionIds.indexOf(lastTransactionId);
         if (lastProcessedIndex < 0) {
-            throw new Error(`Checkpoint transaction ID ${lastTransactionId} not found in block ${this.#block.getNumber()} containing transactions: ${blockTransactionIds.join(', ')}`);
+            throw new Error(`Checkpoint transaction ID ${lastTransactionId} not found in block ${String(this.#block.getNumber())} containing transactions: ${blockTransactionIds.join(', ')}`);
         }
 
         return transactions.slice(lastProcessedIndex + 1);

off_chain_data/application-typescript/src/utils.ts

@@ -9,7 +9,8 @@
  * @param values Candidate elements.
  */
 export function randomElement<T>(values: T[]): T {
-    return values[randomInt(values.length)];
+    const result = values[randomInt(values.length)];
+    return assertDefined(result, `Missing element in {String(values)}`);
 }
 
 /**
@@ -42,7 +43,7 @@ export async function allFulfilled(promises: Promise<unknown>[]): Promise<void>
 
     if (failures.length > 0) {
         const failMessages = ' - ' + failures.join('\n - ');
-        throw new Error(`${failures.length} failures:\n${failMessages}\n`);
+        throw new Error(`${String(failures.length)} failures:\n${failMessages}\n`);
     }
 }
 

off_chain_data/application-typescript/tsconfig.json

@@ -1,19 +1,15 @@
 {
-    "$schema": "https://json.schemastore.org/tsconfig",
     "extends": "@tsconfig/node18/tsconfig.json",
     "compilerOptions": {
+        "outDir": "dist",
         "declaration": true,
         "declarationMap": true,
         "sourceMap": true,
-        "outDir": "dist",
-        "rootDir": "src",
         "noUnusedLocals": true,
-        "noImplicitReturns": true
+        "noImplicitReturns": true,
+        "noUncheckedIndexedAccess": true,
+        "forceConsistentCasingInFileNames": true
     },
-    "include": [
-        "src/"
-    ],
-    "exclude": [
-        "src/**/*.spec.ts"
-    ]
+    "include": ["./src/**/*"],
+    "exclude": ["./src/**/*.spec.ts"]
 }