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{ | ||
"presets": ["es2015", "stage-3"], | ||
"plugins": ["syntax-async-functions", "transform-runtime", "transform-regenerator", "transform-async-to-generator"] | ||
} |
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node_modules |
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# Usage | ||
`npm install` |
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{ | ||
"name": "js-driver-bigchaindb-examples", | ||
"version": "1.0.0", | ||
"main": "src/app.js", | ||
"scripts": { | ||
"start": "nodemon src/app.js --exec babel-node", | ||
"build": "npm run clean && babel src -d dist", | ||
"serve": "node dist/app.js", | ||
"clean": "rimraf ./dist" | ||
}, | ||
"author": "BigchainDB", | ||
"license": "MIT", | ||
"devDependencies": { | ||
"babel-cli": "^6.26.0", | ||
"babel-core": "^6.13.2", | ||
"babel-loader": "^6.2.4", | ||
"babel-plugin-syntax-async-functions": "^6.13.0", | ||
"babel-plugin-transform-async-to-generator": "^6.8.0", | ||
"babel-plugin-transform-regenerator": "^6.11.4", | ||
"babel-plugin-transform-runtime": "^6.12.0", | ||
"babel-preset-es2015": "^6.13.2", | ||
"babel-preset-stage-3": "^6.11.0", | ||
"nodemon": "^1.14.8", | ||
"rimraf": "^2.6.2" | ||
}, | ||
"repository": "/", | ||
"private": true, | ||
"dependencies": { | ||
"bigchaindb-driver": "^3.2.0" | ||
} | ||
} |
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// const driver = require('../../../src/index') | ||
import * as driver from 'bigchaindb-driver' | ||
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// ======== Preparation ======== // | ||
const conn = new driver.Connection('https://test.bigchaindb.com/api/v1/', { | ||
app_id: 'c17a9968', | ||
app_key: '0b277b94893e7b0a5b4e6afd6bccb01d' | ||
}) | ||
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const alice = new driver.Ed25519Keypair() | ||
const bob = new driver.Ed25519Keypair() | ||
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const assetdata = { | ||
'bicycle': { | ||
'serial_number': 'abcd1234', | ||
'manufacturer': 'Bicycle Inc.', | ||
} | ||
} | ||
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const metadata = { 'planet': 'earth' } | ||
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// ======== Create Transaction Bicycle ======== // | ||
const txCreateAliceSimple = driver.Transaction.makeCreateTransaction( | ||
assetdata, | ||
metadata, | ||
[driver.Transaction.makeOutput( | ||
driver.Transaction.makeEd25519Condition(alice.publicKey)) | ||
], | ||
alice.publicKey | ||
) | ||
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const txCreateAliceSimpleSigned = | ||
driver.Transaction.signTransaction(txCreateAliceSimple, alice.privateKey) | ||
console.log(txCreateAliceSimpleSigned) | ||
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// ======== Post Transaction and Fetch Result ======== // | ||
conn.postTransaction(txCreateAliceSimpleSigned) | ||
// Check status of transaction every 0.5 seconds until fulfilled | ||
.then(() => conn.pollStatusAndFetchTransaction(txCreateAliceSimpleSigned.id)) | ||
.then(retrievedTx => { | ||
console.log('Transaction', retrievedTx.id, 'successfully posted.') | ||
return retrievedTx | ||
}) | ||
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// Check status after transaction has completed (result: { 'status': 'valid' }) | ||
// If you check the status of a transaction before it's added to BigchainDB, | ||
// BigchainDb will return that the transaction is still waiting in the 'backlog' | ||
.then(() => conn.getStatus(txCreateAliceSimpleSigned.id)) | ||
.then(status => console.log('Retrieved status method 2: ', status)) | ||
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// ======== Transfer Bicycle to Bob ======== // | ||
.then(() => { | ||
try { | ||
console.log(txCreateAliceSimpleSigned) | ||
const txTransferBob = driver.Transaction.makeTransferTransaction( | ||
[{ tx: txCreateAliceSimpleSigned, output_index: 0 }], | ||
[driver.Transaction.makeOutput(driver.Transaction.makeEd25519Condition(bob.publicKey))], | ||
{ price: '100 euro' } | ||
) | ||
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// Sign transfer transaction with Alice's private key | ||
const txTransferBobSigned = driver.Transaction.signTransaction(txTransferBob, alice.privateKey) | ||
console.log('Posting signed transaction: ', txTransferBobSigned) | ||
} catch (err) { | ||
console.log(err) | ||
} | ||
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return conn.postTransaction(txTransferBobSigned) | ||
}) | ||
.then(res => { | ||
console.log('Response from BDB server:', res) | ||
return conn.pollStatusAndFetchTransaction(res.id) | ||
}) | ||
.then(tx => { | ||
console.log('Is Bob the owner?', tx.outputs[0].public_keys[0] === bob.publicKey) | ||
console.log('Was Alice the previous owner?', tx.inputs[0].owners_before[0] === alice.publicKey) | ||
}) | ||
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// ======== Search Asset by Serial Number ======== // | ||
.then(() => conn.searchAssets('Bicycle Inc.')) | ||
.then(assets => console.log('Found assets with serial number Bicycle Inc.:', assets)) |
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const driver = require('../../src/index') | ||
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// ======== Preparation ======== // | ||
const conn = new driver.Connection('https://test.bigchaindb.com/api/v1/', { | ||
app_id: 'c17a9968', | ||
app_key: '0b277b94893e7b0a5b4e6afd6bccb01d' | ||
}) | ||
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const alice = new driver.Ed25519Keypair() | ||
const bob = new driver.Ed25519Keypair() | ||
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const assetdata = { | ||
'bicycle': { | ||
'serial_number': 'abcd1234', | ||
'manufacturer': 'Bicycle Inc.', | ||
} | ||
} | ||
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const metadata = { 'planet': 'earth' } | ||
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// ======== Create Transaction Bicycle ======== // | ||
const txCreateAliceSimple = driver.Transaction.makeCreateTransaction( | ||
assetdata, | ||
metadata, | ||
[driver.Transaction.makeOutput( | ||
driver.Transaction.makeEd25519Condition(alice.publicKey)) | ||
], | ||
alice.publicKey | ||
) | ||
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const txCreateAliceSimpleSigned = | ||
driver.Transaction.signTransaction(txCreateAliceSimple, alice.privateKey) | ||
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// ======== Post Transaction and Fetch Result ======== // | ||
conn.postTransaction(txCreateAliceSimpleSigned) | ||
// Check status of transaction every 0.5 seconds until fulfilled | ||
.then(() => conn.pollStatusAndFetchTransaction(txCreateAliceSimpleSigned.id)) | ||
.then(retrievedTx => console.log('Transaction', retrievedTx.id, 'successfully posted.')) | ||
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// Check status after transaction has completed (result: { 'status': 'valid' }) | ||
// If you check the status of a transaction before it's added to BigchainDB, | ||
// BigchainDb will return that the transaction is still waiting in the 'backlog' | ||
.then(() => conn.getStatus(txCreateAliceSimpleSigned.id)) | ||
.then(status => console.log('Retrieved status method 2: ', status)) | ||
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// ======== Transfer Bicycle to Bob ======== // | ||
.then(() => { | ||
const txTransferBob = driver.Transaction.makeTransferTransaction( | ||
[{ tx: txCreateAliceSimpleSigned, output_index: 0 }], | ||
[driver.Transaction.makeOutput(driver.Transaction.makeEd25519Condition(bob.publicKey))], | ||
{ price: '100 euro' } | ||
) | ||
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// Sign transfer transaction with Alice's private key | ||
const txTransferBobSigned = driver.Transaction.signTransaction(txTransferBob, alice.privateKey) | ||
console.log('Posting signed transaction: ', txTransferBobSigned) | ||
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return conn.postTransaction(txTransferBobSigned) | ||
}) | ||
.then(res => { | ||
console.log('Response from BDB server:', res) | ||
return conn.pollStatusAndFetchTransaction(res.id) | ||
}) | ||
.then(tx => { | ||
console.log('Is Bob the owner?', tx.outputs[0].public_keys[0] === bob.publicKey) | ||
console.log('Was Alice the previous owner?', tx.inputs[0].owners_before[0] === alice.publicKey) | ||
}) | ||
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// ======== Search Asset by Serial Number ======== // | ||
.then(() => conn.searchAssets('Bicycle Inc.')) | ||
.then(assets => console.log('Found assets with serial number Bicycle Inc.:', assets)) |