fuchain-js v1.0.3

FUChain Driver

FUChain Driver for Javascript from BigchainDB Driver customized by FUChain, a simple module for scaffolding FUChain projects.

Installation and Usage

$ npm install fuchain-js

$ const driver = require('fuchain-js')
// or ES6+
$ import driver from 'fuchain-js'

Example: Create a transaction

const driver = require("fuchain-js");

// FUChain server instance (e.g. https://example.com/api/v1/)
const API_PATH = "http://localhost:9984/api/v1/";

// Create a new keypair.
const alice = new driver.Ed25519Keypair();

// Construct a transaction payload
const tx = driver.Transaction.makeCreateTransaction(
  // Define the asset to store, in this example it is the current temperature
  // (in Celsius) for the city of Berlin.
  { city: "Berlin, DE", temperature: 22, datetime: new Date().toString() },

  // Metadata contains information about the transaction itself
  // (can be `null` if not needed)
  { what: "My first FUChain transaction" },

  // A transaction needs an output
  [
    driver.Transaction.makeOutput(
      driver.Transaction.makeEd25519Condition(alice.publicKey)
    )
  ],
  alice.publicKey
);

// Sign the transaction with private keys
const txSigned = driver.Transaction.signTransaction(tx, alice.privateKey);

// Send the transaction off to FUChain
const conn = new driver.Connection(API_PATH);

conn
  .postTransactionCommit(txSigned)
  .then(retrievedTx =>
    console.log("Transaction", retrievedTx.id, "successfully posted.")
  );