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Add private data go application

Browse source 
Created project directory, app.go and connect.go files. Reused the logic for
connect.go from the events application and added second organization setup.

Implemented private data transaction example in go as described in the main
documentation in "Tutorials/Using Private Data in Fabric".

Updated README.md with the command to run the go application and the script
which runs the application in the Github Actions workflow.

Fixed typos and punctuation in the private data typescript application.

Signed-off-by: Stanislav Jakuschevskij <stas@two-giants.com>
This commit is contained in:
Stanislav Jakuschevskij 2024-10-18 16:10:20 +02:00 committed by Dave Enyeart
parent e23bc6714e
commit 9b199d4e0b
7 changed files with 784 additions and 16 deletions
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4
asset-transfer-private-data/README.md
View file

@ -64,6 +64,10 @@ Like other samples, the Fabric test network is used to deploy and run this sampl
cd application-gateway-typescript
npm install
npm start
# To run the Go sample application
cd application-gateway-go
go run .
```
## Clean up

398
asset-transfer-private-data/application-gateway-go/app.go Normal file
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@ -0,0 +1,398 @@
/*
Copyright 2024 IBM All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package main
import (
"bytes"
"encoding/json"
"errors"
"fmt"
"strings"
"time"
"github.com/hyperledger/fabric-gateway/pkg/client"
"github.com/hyperledger/fabric-gateway/pkg/hash"
"github.com/hyperledger/fabric-protos-go-apiv2/gateway"
"google.golang.org/grpc/status"
)
type transient = map[string][]byte
const (
channelName = "mychannel"
chaincodeName = "private"
mspIDOrg1 = "Org1MSP"
mspIDOrg2 = "Org2MSP"
// Collection names.
org1PrivateCollectionName = "Org1MSPPrivateCollection"
org2PrivateCollectionName = "Org2MSPPrivateCollection"
Red = "\033[31m"
Reset = "\033[0m"
)
// Use a unique key so that we can run multiple times.
var now = time.Now()
var assetID1 = fmt.Sprintf("asset%d", now.Unix())
var assetID2 = fmt.Sprintf("asset%d", now.Unix()+1)
func main() {
clientOrg1 := newGrpcConnection(
tlsCertPathOrg1,
peerEndpointOrg1,
peerNameOrg1,
)
defer clientOrg1.Close()
gatewayOrg1, err := client.Connect(
newIdentity(certDirectoryPathOrg1, mspIDOrg1),
client.WithSign(newSign(keyDirectoryPathOrg1)),
client.WithClientConnection(clientOrg1),
client.WithHash(hash.SHA256),
)
if err != nil {
panic(err)
}
defer gatewayOrg1.Close()
clientOrg2 := newGrpcConnection(
tlsCertPathOrg2,
peerEndpointOrg2,
peerNameOrg2,
)
defer clientOrg2.Close()
gatewayOrg2, err := client.Connect(
newIdentity(certDirectoryPathOrg2, mspIDOrg2),
client.WithSign(newSign(keyDirectoryPathOrg2)),
client.WithClientConnection(clientOrg2),
client.WithHash(hash.SHA256),
)
if err != nil {
panic(err)
}
defer gatewayOrg2.Close()
// Get the smart contract as an Org1 client.
contractOrg1 := gatewayOrg1.GetNetwork(channelName).GetContract(chaincodeName)
// Get the smart contract as an Org1 client.
contractOrg2 := gatewayOrg2.GetNetwork(channelName).GetContract(chaincodeName)
fmt.Println("~~~~~~~~~~~~~~~~ As Org1 Client ~~~~~~~~~~~~~~~~")
// Create new assets on the ledger.
createAssets(contractOrg1)
// Read asset from the Org1's private data collection with ID in the given range.
getAssetByRange(contractOrg1)
// Attempt to transfer asset without prior approval from Org2, transaction expected to fail.
fmt.Println("\nAttempt TransferAsset without prior AgreeToTransfer")
err = transferAsset(contractOrg1, assetID1)
if err == nil {
doFail("TransferAsset transaction succeeded when it was expected to fail")
}
fmt.Printf("*** Received expected error: %+v\n", errorWithDetails(err))
fmt.Println("\n~~~~~~~~~~~~~~~~ As Org2 Client ~~~~~~~~~~~~~~~~")
// Read the asset by ID.
readAssetByID(contractOrg2, assetID1)
// Make agreement to transfer the asset from Org1 to Org2.
agreeToTransfer(contractOrg2, assetID1)
fmt.Println("\n~~~~~~~~~~~~~~~~ As Org1 Client ~~~~~~~~~~~~~~~~")
// Read transfer agreement.
readTransferAgreement(contractOrg1, assetID1)
// Transfer asset to Org2.
if err := transferAsset(contractOrg1, assetID1); err != nil {
doFail(fmt.Sprintf("TransferAsset transaction failed when it was expected to succeed: %+v\n", errorWithDetails(err)))
}
// Again ReadAsset: results will show that the buyer identity now owns the asset.
readAssetByID(contractOrg1, assetID1)
// Confirm that transfer removed the private details from the Org1 collection.
org1ReadSuccess := readAssetPrivateDetails(contractOrg1, assetID1, org1PrivateCollectionName)
if org1ReadSuccess {
doFail(fmt.Sprintf("Asset private data still exists in %s", org1PrivateCollectionName))
}
fmt.Println("\n~~~~~~~~~~~~~~~~ As Org2 Client ~~~~~~~~~~~~~~~~")
// Org2 can read asset private details: Org2 is owner, and private details exist in new owner's Collection.
org2ReadSuccess := readAssetPrivateDetails(contractOrg2, assetID1, org2PrivateCollectionName)
if !org2ReadSuccess {
doFail(fmt.Sprintf("Asset private data not found in %s", org2PrivateCollectionName))
}
fmt.Println("\nAttempt DeleteAsset using non-owner organization")
err = deleteAsset(contractOrg2, assetID2)
if err == nil {
doFail("DeleteAsset transaction succeeded when it was expected to fail")
}
fmt.Printf("*** Received expected error: %+v\n", errorWithDetails(err))
fmt.Println("\n~~~~~~~~~~~~~~~~ As Org1 Client ~~~~~~~~~~~~~~~~")
// Delete AssetID2 as Org1.
if err := deleteAsset(contractOrg1, assetID2); err != nil {
doFail(fmt.Sprintf("DeleteAsset transaction failed when it was expected to succeed: %+v\n", errorWithDetails(err)))
}
// Trigger a purge of the private data for the asset.
// The previous delete is optional if purge is used.
if err := purgeAsset(contractOrg1, assetID2); err != nil {
doFail(fmt.Sprintf("PurgeAsset transaction failed when it was expected to succeed: %+v\n", errorWithDetails(err)))
}
}
func createAssets(contract *client.Contract) {
assetType := "ValuableAsset"
fmt.Printf("\n--> Submit Transaction: CreateAsset, ID: %s\n", assetID1)
type assetTransientInput struct {
ObjectType string
AssetID string
Color string
Size uint8
AppraisedValue uint16
}
asset1Data := assetTransientInput{
ObjectType: assetType,
AssetID: assetID1,
Color: "green",
Size: 20,
AppraisedValue: 100,
}
if _, err := contract.Submit(
"CreateAsset",
client.WithTransient(transient{
"asset_properties": marshal(asset1Data),
}),
); err != nil {
panic(err)
}
logTxCommitSuccess()
fmt.Printf("\n--> Submit Transaction: CreateAsset, ID: %s\n", assetID2)
asset2Data := assetTransientInput{
ObjectType: assetType,
AssetID: assetID2,
Color: "blue",
Size: 35,
AppraisedValue: 727,
}
if _, err := contract.Submit(
"CreateAsset",
client.WithTransient(transient{
"asset_properties": marshal(asset2Data),
}),
); err != nil {
panic(err)
}
logTxCommitSuccess()
}
func getAssetByRange(contract *client.Contract) {
// GetAssetByRange returns assets on the ledger with ID in the range of startKey (inclusive) and endKey (exclusive).
fmt.Printf("\n--> Evaluate Transaction: GetAssetByRange from %s\n", org1PrivateCollectionName)
resultBytes, err := contract.EvaluateTransaction("GetAssetByRange", assetID1, fmt.Sprintf("asset%d", now.Unix()+2))
if err != nil {
panic(err)
}
if len(resultBytes) == 0 {
doFail("Received empty query list for GetAssetByRange")
}
fmt.Printf("*** Result: %s\n", formatJSON(resultBytes))
}
func readAssetByID(contract *client.Contract, assetID string) {
fmt.Printf("\n--> Evaluate Transaction: ReadAsset, ID: %s\n", assetID)
resultBytes, err := contract.EvaluateTransaction("ReadAsset", assetID)
if err != nil {
panic(err)
}
if len(resultBytes) == 0 {
doFail("Received empty result for ReadAsset")
}
fmt.Printf("*** Result: %s\n", formatJSON(resultBytes))
}
func agreeToTransfer(contract *client.Contract, assetID string) {
// Buyer from Org2 agrees to buy the asset.
// To purchase the asset, the buyer needs to agree to the same value as the asset owner.
dataForAgreement := struct {
AssetID string `json:"assetID"`
AppraisedValue int `json:"appraisedValue"`
}{assetID, 100}
fmt.Printf("\n--> Submit Transaction: AgreeToTransfer, payload: %+v\n", dataForAgreement)
if _, err := contract.Submit(
"AgreeToTransfer",
client.WithTransient(transient{
"asset_value": marshal(dataForAgreement),
}),
); err != nil {
panic(err)
}
logTxCommitSuccess()
}
func readTransferAgreement(contract *client.Contract, assetID string) {
fmt.Printf("\n--> Evaluate Transaction: ReadTransferAgreement, ID: %s\n", assetID)
resultBytes, err := contract.EvaluateTransaction("ReadTransferAgreement", assetID)
if err != nil {
panic(err)
}
if len(resultBytes) == 0 {
doFail("Received empty result for ReadTransferAgreement")
}
fmt.Printf("*** Result: %s\n", formatJSON(resultBytes))
}
func transferAsset(contract *client.Contract, assetID string) (err error) {
fmt.Printf("\n--> Submit Transaction: TransferAsset, ID: %s\n", assetID)
buyerDetails := struct {
AssetID string `json:"assetID"`
BuyerMSP string `json:"buyerMSP"`
}{assetID, mspIDOrg2}
if _, err = contract.Submit(
"TransferAsset",
client.WithTransient(transient{
"asset_owner": marshal(buyerDetails),
}),
); err != nil {
return
}
logTxCommitSuccess()
return
}
func deleteAsset(contract *client.Contract, assetID string) (err error) {
fmt.Printf("\n--> Submit Transaction: DeleteAsset, ID: %s\n", assetID)
dataForDelete := struct{ AssetID string }{assetID}
if _, err = contract.Submit(
"DeleteAsset",
client.WithTransient(transient{
"asset_delete": marshal(dataForDelete),
}),
); err != nil {
return
}
logTxCommitSuccess()
return
}
func purgeAsset(contract *client.Contract, assetID string) (err error) {
fmt.Printf("\n--> Submit Transaction: PurgeAsset, ID: %s\n", assetID)
dataForPurge := struct{ AssetID string }{assetID}
if _, err = contract.Submit(
"PurgeAsset",
client.WithTransient(transient{
"asset_purge": marshal(dataForPurge),
}),
); err != nil {
return
}
logTxCommitSuccess()
return
}
func readAssetPrivateDetails(contract *client.Contract, assetID, collectionName string) bool {
fmt.Printf("\n--> Evaluate Transaction: ReadAssetPrivateDetails from %s, ID: %s\n", collectionName, assetID)
resultBytes, err := contract.EvaluateTransaction("ReadAssetPrivateDetails", collectionName, assetID)
if err != nil {
panic(err)
}
if len(resultBytes) == 0 {
fmt.Println("*** No result")
return false
}
fmt.Printf("*** Result: %s\n", formatJSON(resultBytes))
return true
}
func marshal(value any) []byte {
valueAsBytes, err := json.Marshal(&value)
if err != nil {
panic(err)
}
return valueAsBytes
}
func logTxCommitSuccess() {
fmt.Println("*** Transaction committed successfully")
}
func doFail(msg string) {
fmt.Println(Red + msg + Reset)
panic(errors.New(msg))
}
func formatJSON(data []byte) string {
var result bytes.Buffer
if err := json.Indent(&result, data, "", " "); err != nil {
panic(fmt.Errorf("failed to parse JSON: %w", err))
}
return result.String()
}
func errorWithDetails(err error) error {
var buf strings.Builder
statusErr := status.Convert(err)
errDetails := statusErr.Details()
if len(errDetails) > 0 {
buf.WriteString("\nError Details:")
for _, errDetail := range errDetails {
if detail, ok := errDetail.(*gateway.ErrorDetail); ok {
buf.WriteString(fmt.Sprintf("\n- address: %s", detail.GetAddress()))
buf.WriteString(fmt.Sprintf("\n- mspID: %s", detail.GetMspId()))
buf.WriteString(fmt.Sprintf("\n- message: %s\n", detail.GetMessage()))
}
}
}
return fmt.Errorf("%w%s", err, buf.String())
}

111
asset-transfer-private-data/application-gateway-go/connect.go Normal file
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@ -0,0 +1,111 @@
/*
Copyright 2022 IBM All Rights Reserved.
SPDX-License-Identifier: Apache-2.0
*/
package main
import (
"crypto/x509"
"fmt"
"os"
"path"
"github.com/hyperledger/fabric-gateway/pkg/identity"
"google.golang.org/grpc"
"google.golang.org/grpc/credentials"
)
const (
cryptoPathOrg1 = "../../test-network/organizations/peerOrganizations/org1.example.com"
keyDirectoryPathOrg1 = cryptoPathOrg1 + "/users/User1@org1.example.com/msp/keystore"
certDirectoryPathOrg1 = cryptoPathOrg1 + "/users/User1@org1.example.com/msp/signcerts"
tlsCertPathOrg1 = cryptoPathOrg1 + "/peers/peer0.org1.example.com/tls/ca.crt"
peerEndpointOrg1 = "dns:///localhost:7051"
peerNameOrg1 = "peer0.org1.example.com"
cryptoPathOrg2 = "../../test-network/organizations/peerOrganizations/org2.example.com"
keyDirectoryPathOrg2 = cryptoPathOrg2 + "/users/User1@org2.example.com/msp/keystore"
certDirectoryPathOrg2 = cryptoPathOrg2 + "/users/User1@org2.example.com/msp/signcerts"
tlsCertPathOrg2 = cryptoPathOrg2 + "/peers/peer0.org2.example.com/tls/ca.crt"
peerEndpointOrg2 = "dns:///localhost:9051"
peerNameOrg2 = "peer0.org2.example.com"
)
// newGrpcConnection creates a gRPC connection to the Gateway server.
func newGrpcConnection(tlsCertPath, peerEndpoint, peerName string) *grpc.ClientConn {
certificatePEM, err := os.ReadFile(tlsCertPath)
if err != nil {
panic(fmt.Errorf("failed to read TLS certificate file: %w", err))
}
certificate, err := identity.CertificateFromPEM(certificatePEM)
if err != nil {
panic(err)
}
certPool := x509.NewCertPool()
certPool.AddCert(certificate)
transportCredentials := credentials.NewClientTLSFromCert(certPool, peerName)
connection, err := grpc.NewClient(peerEndpoint, grpc.WithTransportCredentials(transportCredentials))
if err != nil {
panic(fmt.Errorf("failed to create gRPC connection: %w", err))
}
return connection
}
// newIdentity creates a client identity for this Gateway connection using an X.509 certificate.
func newIdentity(certDirectoryPath, mspId string) *identity.X509Identity {
certificatePEM, err := readFirstFile(certDirectoryPath)
if err != nil {
panic(fmt.Errorf("failed to read certificate file: %w", err))
}
certificate, err := identity.CertificateFromPEM(certificatePEM)
if err != nil {
panic(err)
}
id, err := identity.NewX509Identity(mspId, certificate)
if err != nil {
panic(err)
}
return id
}
// newSign creates a function that generates a digital signature from a message digest using a private key.
func newSign(keyDirectoryPash string) identity.Sign {
privateKeyPEM, err := readFirstFile(keyDirectoryPash)
if err != nil {
panic(fmt.Errorf("failed to read private key file: %w", err))
}
privateKey, err := identity.PrivateKeyFromPEM(privateKeyPEM)
if err != nil {
panic(err)
}
sign, err := identity.NewPrivateKeySign(privateKey)
if err != nil {
panic(err)
}
return sign
}
func readFirstFile(dirPath string) ([]byte, error) {
dir, err := os.Open(dirPath)
if err != nil {
return nil, err
}
fileNames, err := dir.Readdirnames(1)
if err != nil {
return nil, err
}
return os.ReadFile(path.Join(dirPath, fileNames[0]))
}

23
asset-transfer-private-data/application-gateway-go/go.mod Normal file
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@ -0,0 +1,23 @@
module assetTransfer
go 1.22.0
require (
github.com/hyperledger/fabric-gateway v1.6.0
google.golang.org/grpc v1.67.0
)
require (
github.com/golang/protobuf v1.5.3 // indirect
github.com/hyperledger/fabric-protos-go v0.0.0-20200707132912-fee30f3ccd23 // indirect
github.com/hyperledger/fabric-protos-go-apiv2 v0.3.3 // indirect
github.com/hyperledger/fabric-sdk-go v1.0.0 // indirect
github.com/miekg/pkcs11 v1.1.1 // indirect
github.com/pkg/errors v0.8.1 // indirect
golang.org/x/crypto v0.27.0 // indirect
golang.org/x/net v0.29.0 // indirect
golang.org/x/sys v0.25.0 // indirect
golang.org/x/text v0.18.0 // indirect
google.golang.org/genproto/googleapis/rpc v0.0.0-20240924160255-9d4c2d233b61 // indirect
google.golang.org/protobuf v1.34.2 // indirect
)

223
asset-transfer-private-data/application-gateway-go/go.sum Normal file
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@ -0,0 +1,223 @@
bitbucket.org/liamstask/goose v0.0.0-20150115234039-8488cc47d90c/go.mod h1:hSVuE3qU7grINVSwrmzHfpg9k87ALBk+XaualNyUzI4=
cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
github.com/GeertJohan/go.incremental v1.0.0/go.mod h1:6fAjUhbVuX1KcMD3c8TEgVUqmo4seqhv0i0kdATSkM0=
github.com/GeertJohan/go.rice v1.0.0/go.mod h1:eH6gbSOAUv07dQuZVnBmoDP8mgsM1rtixis4Tib9if0=
github.com/Knetic/govaluate v3.0.0+incompatible/go.mod h1:r7JcOSlj0wfOMncg0iLm8Leh48TZaKVeNIfJntJ2wa0=
github.com/VividCortex/gohistogram v1.0.0/go.mod h1:Pf5mBqqDxYaXu3hDrrU+w6nw50o/4+TcAqDqk/vUH7g=
github.com/akavel/rsrc v0.8.0/go.mod h1:uLoCtb9J+EyAqh+26kdrTgmzRBFPGOolLWKpdxkKq+c=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
github.com/certifi/gocertifi v0.0.0-20180118203423-deb3ae2ef261/go.mod h1:GJKEexRPVJrBSOjoqN5VNOIKJ5Q3RViH6eu3puDRwx4=
github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
github.com/cloudflare/backoff v0.0.0-20161212185259-647f3cdfc87a/go.mod h1:rzgs2ZOiguV6/NpiDgADjRLPNyZlApIWxKpkT+X8SdY=
github.com/cloudflare/cfssl v1.4.1/go.mod h1:KManx/OJPb5QY+y0+o/898AMcM128sF0bURvoVUSjTo=
github.com/cloudflare/go-metrics v0.0.0-20151117154305-6a9aea36fb41/go.mod h1:eaZPlJWD+G9wseg1BuRXlHnjntPMrywMsyxf+LTOdP4=
github.com/cloudflare/redoctober v0.0.0-20171127175943-746a508df14c/go.mod h1:6Se34jNoqrd8bTxrmJB2Bg2aoZ2CdSXonils9NsiNgo=
github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
github.com/daaku/go.zipexe v1.0.0/go.mod h1:z8IiR6TsVLEYKwXAoE/I+8ys/sDkgTzSL0CLnGVd57E=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/getsentry/raven-go v0.0.0-20180121060056-563b81fc02b7/go.mod h1:KungGk8q33+aIAZUIVWZDr2OfAEBsO49PX4NzFV5kcQ=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-sql-driver/mysql v1.3.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
github.com/golang/mock v1.4.3/go.mod h1:UOMv5ysSaYNkG+OFQykRIcU/QvvxJf3p21QfJ2Bt3cw=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
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golang.org/x/net v0.29.0/go.mod h1:gLkgy8jTGERgjzMic6DS9+SP0ajcu6Xu3Orq/SpETg0=
golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
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golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180909124046-d0be0721c37e/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.0.0-20190801041406-cbf593c0f2f3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
golang.org/x/sys v0.25.0 h1:r+8e+loiHxRqhXVl6ML1nO3l1+oFoWbnlu2Ehimmi34=
golang.org/x/sys v0.25.0/go.mod h1:/VUhepiaJMQUp4+oa/7Zr1D23ma6VTLIYjOOTFZPUcA=
golang.org/x/text v0.0.0-20170915032832-14c0d48ead0c/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
golang.org/x/text v0.18.0 h1:XvMDiNzPAl0jr17s6W9lcaIhGUfUORdGCNsuLmPG224=
golang.org/x/text v0.18.0/go.mod h1:BuEKDfySbSR4drPmRPG/7iBdf8hvFMuRexcpahXilzY=
golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
golang.org/x/tools v0.0.0-20190425150028-36563e24a262/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
google.golang.org/genproto/googleapis/rpc v0.0.0-20240924160255-9d4c2d233b61 h1:N9BgCIAUvn/M+p4NJccWPWb3BWh88+zyL0ll9HgbEeM=
google.golang.org/genproto/googleapis/rpc v0.0.0-20240924160255-9d4c2d233b61/go.mod h1:UqMtugtsSgubUsoxbuAoiCXvqvErP7Gf0so0mK9tHxU=
google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
google.golang.org/grpc v1.23.0/go.mod h1:Y5yQAOtifL1yxbo5wqy6BxZv8vAUGQwXBOALyacEbxg=
google.golang.org/grpc v1.25.1/go.mod h1:c3i+UQWmh7LiEpx4sFZnkU36qjEYZ0imhYfXVyQciAY=
google.golang.org/grpc v1.29.1/go.mod h1:itym6AZVZYACWQqET3MqgPpjcuV5QH3BxFS3IjizoKk=
google.golang.org/grpc v1.67.0 h1:IdH9y6PF5MPSdAntIcpjQ+tXO41pcQsfZV2RxtQgVcw=
google.golang.org/grpc v1.67.0/go.mod h1:1gLDyUQU7CTLJI90u3nXZ9ekeghjeM7pTDZlqFNg2AA=
google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
google.golang.org/protobuf v1.34.2 h1:6xV6lTsCfpGD21XK49h7MhtcApnLqkfYgPcdHftf6hg=
google.golang.org/protobuf v1.34.2/go.mod h1:qYOHts0dSfpeUzUFpOMr/WGzszTmLH+DiWniOlNbLDw=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/fsnotify.v1 v1.4.7/go.mod h1:Tz8NjZHkW78fSQdbUxIjBTcgA1z1m8ZHf0WmKUhAMys=
gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw=
gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.2.4/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

26
asset-transfer-private-data/application-gateway-typescript/src/app.ts
View file

@ -18,14 +18,14 @@ const mspIdOrg2 = 'Org2MSP';
const utf8Decoder = new TextDecoder();
// Collection Names
// Collection names.
const org1PrivateCollectionName = 'Org1MSPPrivateCollection';
const org2PrivateCollectionName = 'Org2MSPPrivateCollection';
const RED = '\x1b[31m\n';
const RESET = '\x1b[0m';
// Use a unique key so that we can run multiple times
// Use a unique key so that we can run multiple times.
const now = Date.now();
const assetID1 = `asset${String(now)}`;
const assetID2 = `asset${String(now + 1)}`;
@ -74,10 +74,10 @@ async function main(): Promise<void> {
await createAssets(contractOrg1);
// Read asset from the Org1's private data collection with ID in the given range.
await getAssetsByRange(contractOrg1);
await getAssetByRange(contractOrg1);
try {
// Attempt to transfer asset without prior aprroval from Org2, transaction expected to fail.
// Attempt to transfer asset without prior approval from Org2, transaction expected to fail.
console.log('\nAttempt TransferAsset without prior AgreeToTransfer');
await transferAsset(contractOrg1, assetID1);
doFail('TransferAsset transaction succeeded when it was expected to fail');
@ -101,7 +101,7 @@ async function main(): Promise<void> {
// Transfer asset to Org2.
await transferAsset(contractOrg1, assetID1);
// Again ReadAsset : results will show that the buyer identity now owns the asset.
// Again ReadAsset: results will show that the buyer identity now owns the asset.
await readAssetByID(contractOrg1, assetID1);
// Confirm that transfer removed the private details from the Org1 collection.
@ -112,7 +112,7 @@ async function main(): Promise<void> {
console.log('\n~~~~~~~~~~~~~~~~ As Org2 Client ~~~~~~~~~~~~~~~~');
// Org2 can read asset private details: Org2 is owner, and private details exist in new owner's Collection
// Org2 can read asset private details: Org2 is owner, and private details exist in new owner's collection.
const org2ReadSuccess = await readAssetPrivateDetails(contractOrg2, assetID1, org2PrivateCollectionName);
if (!org2ReadSuccess) {
doFail(`Asset private data not found in ${org2PrivateCollectionName}`);
@ -131,8 +131,8 @@ async function main(): Promise<void> {
// Delete AssetID2 as Org1.
await deleteAsset(contractOrg1, assetID2);
// Trigger a purge of the private data for the asset
// The previous delete is optinal if purge is used
// Trigger a purge of the private data for the asset.
// The previous delete is optional if purge is used.
await purgeAsset(contractOrg1, assetID2);
} finally {
gatewayOrg1.close();
@ -186,9 +186,9 @@ async function createAssets(contract: Contract): Promise<void> {
console.log('*** Transaction committed successfully');
}
async function getAssetsByRange(contract: Contract): Promise<void> {
async function getAssetByRange(contract: Contract): Promise<void> {
// GetAssetByRange returns assets on the ledger with ID in the range of startKey (inclusive) and endKey (exclusive).
console.log(`\n--> Evaluate Transaction: ReadAssetPrivateDetails from ${org1PrivateCollectionName}`);
console.log(`\n--> Evaluate Transaction: GetAssetByRange from ${org1PrivateCollectionName}`);
const resultBytes = await contract.evaluateTransaction(
'GetAssetByRange',
@ -198,7 +198,7 @@ async function getAssetsByRange(contract: Contract): Promise<void> {
const resultString = utf8Decoder.decode(resultBytes);
if (!resultString) {
doFail('Received empty query list for readAssetPrivateDetailsOrg1');
doFail('Received empty query list for GetAssetByRange');
}
const result: unknown = JSON.parse(resultString);
console.log('*** Result:', result);
@ -217,8 +217,8 @@ async function readAssetByID(contract: Contract, assetID: string): Promise<void>
}
async function agreeToTransfer(contract: Contract, assetID: string): Promise<void> {
// Buyer from Org2 agrees to buy the asset//
// To purchase the asset, the buyer needs to agree to the same value as the asset owner
// Buyer from Org2 agrees to buy the asset.
// To purchase the asset, the buyer needs to agree to the same value as the asset owner.
const dataForAgreement = { assetID, appraisedValue: 100 };
console.log('\n--> Submit Transaction: AgreeToTransfer, payload:', dataForAgreement);

9
ci/scripts/run-test-network-private.sh
View file

@ -34,3 +34,12 @@ print "Start application"
npm start
popd
stopNetwork
# Run Go gateway application
createNetwork
print "Initializing Go gateway application"
pushd ../asset-transfer-private-data/application-gateway-go
print "Executing application"
go run .
popd
stopNetwork