TurtleCoind Node API Proxy

This project is designed to provide an API proxy for web services to contact any number of TurtleCoin nodes for basic information regarding the state of the Node. It utilizes a cache that helps speed up the delivery of responses to clients while minimizing the load against the specified daemon by remote callers.

The sample service.js includes an example of how to quickly spin up the web service. It supports clustering via PM2 and I highly recommend that you run it with multiple threads.

Dependencies

• NodeJS v8.x

Easy Start

This will spin up a copy of the webservice on 0.0.0.0:80. See the additional options below to customize the port or IP the web service binds to.

git clone https://github.com/turtlecoin/turtlecoin-api-proxy.git
cd turtlecoin-api-proxy
npm install
node service.js

Keep it Running

I'm a big fan of PM2 so if you don't have it installed, the setup is quite simple.

npm install -g pm2@latest
pm2 startup
pm2 install pm2-logrotate
pm2 start service.js --watch --name turtlecoin-api-proxy -i max
pm2 save

Initialization

This is incredibly simple to setup and use. No options are required but you can customize it as you see fit. Default values are provided below.

const TRTLProxy = require('./')

var service = new TRTLProxy({
  cacheTimeout: 30, // How quickly do we timeout cached responses from individual nodes
  timeout: 2000, // How long to wait for underlying RPC calls to return
  bindIp: '0.0.0.0', // What IP address do we bind the web service to
  bindPort: 80 // What port do we bind the web service to
  defaultHost: 'public.turtlenode.io', // The default node to look to for RPC calls
  defaultPort: 11898 // The default port to use on the default node
})

Methods

service.start()

Starts the web service

service.start()

service.stop()

Stops the web service

service.stop()

Events

Event - error

Event is emitted when an error is encountered.

service.on('error', (err) => {
  // do something
})

Event - ready

Event is emitted when the web service is listening for connections.

service.on('ready', (ip, port) => {
  // do something
})

Event - stop

Event is emitted when the web service is stopped.

service.on('stop', () => {
  // do something
})

Using the API

Refer to the TurtleCoin documentation for the API commands supported. Generally speaking, all commands from the JSON HTTP API and JSON RPC API are supported.

Querying Multiple Nodes

To query a node other than the one supplied in defaultHost call any of the API commands in one of the following formats:

• /endpoint
• /:node:/endpoint
• /:node:/:port:/endpoint

Examples:

• /getinfo
• /public.turtlenode.io/getinfo
• /public.turtlenode.io/11898/getinfo
• /json_rpc
• /public.turtlenode.io/json_rpc
• /public.turtlenode.io/11898/json_rpc

License

Copyright (C) 2018-2019 Brandon Lehmann, The TurtleCoin Developers

Please see the included LICENSE file for more information.