mirror of
https://github.com/hyperledger/fabric-samples.git
synced 2026-06-17 15:35:09 +00:00
f9bd0097b9
Fixed a typo. It should be "buy" instead of "issue" Signed-off-by: Jonas Kreusch <krejon@googlemail.com>
105 lines
3 KiB
JavaScript
105 lines
3 KiB
JavaScript
/*
|
|
* Copyright IBM Corp. All Rights Reserved.
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
/*
|
|
* This application has 6 basic steps:
|
|
* 1. Select an identity from a wallet
|
|
* 2. Connect to network gateway
|
|
* 3. Access PaperNet network
|
|
* 4. Construct request to buy commercial paper
|
|
* 5. Submit transaction
|
|
* 6. Process response
|
|
*/
|
|
|
|
'use strict';
|
|
|
|
// Bring key classes into scope, most importantly Fabric SDK network class
|
|
const fs = require('fs');
|
|
const yaml = require('js-yaml');
|
|
const { Wallets, Gateway } = require('fabric-network');
|
|
const CommercialPaper = require('../../magnetocorp/contract/lib/paper.js');
|
|
|
|
|
|
// Main program function
|
|
async function main () {
|
|
|
|
// A wallet stores a collection of identities for use
|
|
const wallet = await Wallets.newFileSystemWallet('../identity/user/balaji/wallet');
|
|
|
|
|
|
// A gateway defines the peers used to access Fabric networks
|
|
const gateway = new Gateway();
|
|
|
|
// Main try/catch block
|
|
try {
|
|
|
|
// Specify userName for network access
|
|
const userName = 'balaji';
|
|
|
|
// Load connection profile; will be used to locate a gateway
|
|
let connectionProfile = yaml.safeLoad(fs.readFileSync('../gateway/connection-org1.yaml', 'utf8'));
|
|
|
|
// Set connection options; identity and wallet
|
|
let connectionOptions = {
|
|
identity: userName,
|
|
wallet: wallet,
|
|
discovery: { enabled: true, asLocalhost: true }
|
|
|
|
};
|
|
|
|
// Connect to gateway using application specified parameters
|
|
console.log('Connect to Fabric gateway.');
|
|
|
|
await gateway.connect(connectionProfile, connectionOptions);
|
|
|
|
// Access PaperNet network
|
|
console.log('Use network channel: mychannel.');
|
|
|
|
const network = await gateway.getNetwork('mychannel');
|
|
|
|
// Get addressability to commercial paper contract
|
|
console.log('Use org.papernet.commercialpaper smart contract.');
|
|
|
|
const contract = await network.getContract('papercontract', 'org.papernet.commercialpaper');
|
|
|
|
// buy commercial paper
|
|
console.log('Submit commercial paper buy transaction.');
|
|
|
|
const buyResponse = await contract.submitTransaction('buy', 'MagnetoCorp', '00001', 'MagnetoCorp', 'DigiBank', '4900000', '2020-05-31');
|
|
|
|
// process response
|
|
console.log('Process buy transaction response.');
|
|
|
|
let paper = CommercialPaper.fromBuffer(buyResponse);
|
|
|
|
console.log(`${paper.issuer} commercial paper : ${paper.paperNumber} successfully purchased by ${paper.owner}`);
|
|
console.log('Transaction complete.');
|
|
|
|
} catch (error) {
|
|
|
|
console.log(`Error processing transaction. ${error}`);
|
|
console.log(error.stack);
|
|
|
|
} finally {
|
|
|
|
// Disconnect from the gateway
|
|
console.log('Disconnect from Fabric gateway.');
|
|
gateway.disconnect();
|
|
|
|
}
|
|
}
|
|
main().then(() => {
|
|
|
|
console.log('Buy program complete.');
|
|
|
|
}).catch((e) => {
|
|
|
|
console.log('Buy program exception.');
|
|
console.log(e);
|
|
console.log(e.stack);
|
|
process.exit(-1);
|
|
|
|
});
|