joltwallet / nano-node-rpc

🔗 Super simple promise-based client for the Nano Cryptocurrency Node RPC API

🔗 Nano Node RPC Client

Nano RPC client written in Javascript with no external dependencies. It produces JSON objects or strings as output, wrapped in native promises.

All RPC calls are defined in the Nano.org Docs.

Getting Started

Install

npm install nano-node-rpc

My Nano Ninja Node API

const NanoClient = require('nano-node-rpc');
const client = NanoClient({apiKey: process.env.NINJA_API_KEY})

Your own Nano RPC server

const NanoClient = require('nano-node-rpc');
const client = NanoClient({url: 'http://localhost:7076'})

Use methods attached to client to send RPC calls

Examples

Head to the examples.js file for even more!

const client = NanoClient({url: 'http://localhost:7076'})

// Some methods do not require arguments:
client
  .block_count()
  .then(count => {
    console.log(count);
    /**
     * {
     *   "count": "1826834",
     *   "unchecked": "3385205"
     * }
     */
  })
  .catch(e => {
    // Deal with your errors here.
  });

// Some methods require arguments:
client
  .account_balance("nano_1ninja7rh37ehfp9utkor5ixmxyg8kme8fnzc4zty145ibch8kf5jwpnzr3r")
  .then(balance => {
    console.log(balance);
    /**
     * {
     *   "balance": "325586539664609129644855132177",
     *   "pending": "2309370929000000000000000000000000"
     * }
     */
  })
  .catch(e => {
    // Deal with your errors here.
  });

Promise-wrapped responses

All method calls return native NodeJS promises. You need to use the then() / catch() pattern shown above. If the call was succesful, the data will be passed to then(), otherwise the error will be passed to catch().

Methods Names

The method calls are the same as the original RPC actions defined on the Nano.org Docs.

Example1: on the Nano wiki account_balance is called with account. For the NodeJS client, the method is account_balance and the argument is the account string.

If a method is not available with a method you can use the _send method like this:

client._send('block_info', {
  "json_block": true,
  "hash": "87434F8041869A01C8F6F263B87972D7BA443A72E0A97D7A3FD0CCC2358FD6F9"
}).then(block_info => {
  console.log(block_info);
  /**
   * {
   *   "block_account": "nano_1ipx847tk8o46pwxt5qjdbncjqcbwcc1rrmqnkztrfjy5k7z4imsrata9est",
   *   "amount": "30000000000000000000000000000000000",
   *   "balance": "5606157000000000000000000000000000000",
   *   "height": "58",
   *   "local_timestamp": "0",
   *   "confirmed": "true",
   *   "contents": {
   *     ...
   *   },
   *   "subtype": "send"
   * }
   */
})
.catch(e => {
  // Deal with your errors here.
});