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js-bigchaindb-driver
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First example v2

This commit is contained in:
Michiel Mulders 2018-01-20 14:45:57 +01:00
parent 2deba0cad8
commit 1aa295830d
1 changed files with 14 additions and 34 deletions
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48
examples/basic-usage-boilerplate/src/app.js
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@ -1,5 +1,5 @@
// const driver = require('../../../src/index')
import * as driver from 'bigchaindb-driver'
const driver = require('bigchaindb-driver')
// ======== Preparation ======== //
const conn = new driver.Connection('https://test.bigchaindb.com/api/v1/', {
@ -23,59 +23,39 @@ const metadata = { 'planet': 'earth' }
const txCreateAliceSimple = driver.Transaction.makeCreateTransaction(
assetdata,
metadata,
[driver.Transaction.makeOutput(
driver.Transaction.makeEd25519Condition(alice.publicKey))
[
driver.Transaction.makeOutput(driver.Transaction.makeEd25519Condition(alice.publicKey))
],
alice.publicKey
)
const txCreateAliceSimpleSigned =
driver.Transaction.signTransaction(txCreateAliceSimple, alice.privateKey)
console.log(txCreateAliceSimpleSigned)
// ======== 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
})
// 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))
// ======== 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' }
)
const txTransferBob = driver.Transaction.makeTransferTransaction(
[{ tx: txCreateAliceSimpleSigned, output_index: 0 }],
[driver.Transaction.makeOutput(driver.Transaction.makeEd25519Condition(bob.publicKey))],
{ price: '100 euro' }
)
// 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)
}
// Sign transfer transaction with Alice's private key
const txTransferBobSigned = driver.Transaction.signTransaction(txTransferBob, alice.privateKey)
return conn.postTransaction(txTransferBobSigned)
})
.then(res => {
console.log('Response from BDB server:', res)
return conn.pollStatusAndFetchTransaction(res.id)
})
.then(res => 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)
console.log('Is Bob the owner?', tx.outputs[0].public_keys[0] === bob.publicKey) // eslint-disable-line no-console
console.log('Was Alice the previous owner?', tx.inputs[0].owners_before[0] === alice.publicKey) // eslint-disable-line no-console
})
// ======== Search Asset by Serial Number ======== //
.then(() => conn.searchAssets('Bicycle Inc.'))
.then(assets => console.log('Found assets with serial number Bicycle Inc.:', assets))
.then(assets => console.log('Found assets with serial number Bicycle Inc.:', assets)) // eslint-disable-line no-console