xxl-coind-express-api is an Express middleware wrapper exposing local *coind JSOIN-RPC methods for access via a url. Should work for most Bitcoin or Bitcoin derived Cryptocurrencies.
Notes: Currently does not support RPC methods that require you to unlock your local wallet. The focus of this project is to support simple, Read-Only methods. This middleware is experimental presently but should be refined over time. Please report any bugs.
npm install xxl-coind-express-apiconst express = require('express');
const coindApi = require('xxl-coind-express-api');
// Create Express App
let app = express();
let allowedMethods = ['getinfo', 'getmininginfo', 'getpeerinfo'];
let walletSettings = {
host: 'localhost',
port: 8332,
user: 'username',
pass: 'password123'
};
// Provide an array of allowed RPC methods
app.set('coindAllowedMethods', allowedMethods);
// Provide local *coind wallet settings
app.set('coindRPCSettings', walletSettings);
// Bind the middleware "coindApi" to a provided path
app.use('/api', coindApi);
// Run the application server
app.listen(3000);Just add the method name after the binded url.
For example:
This returns data exactly as would be expected from the JSON-RPC api.
{
"version": 1,
"protocolversion": 1,
"walletversion": 1,
"balance": 1,
"blocks": 1,
"timeoffset": -2,
"connections": 1,
...
}Parameters are sent via a query string:
{
"amount": 1,
"confirmations": 1,
"blockhash": "1",
"blockindex": 1,
"blocktime": 1372728756,
"txid": "1",
...
}Bitcoin and Bitcoin-derived cryptocurrencies should have similarities to RPC methods available. Consult the Bitcoin API call list for parameter information, or your local blockchain developer!
To ensure sneaky individuals can't manipulate your information or view details you would otherwise like to hide, you can pass in an optional array of RPC method names you would like to expose. This middleware will authenticate requests and ensure a request matches one of the passed array values:
let allowedMethods = ['getinfo', 'getmininginfo', 'getpeerinfo'];
app.set('coindAllowedMethods', allowedMethods);
By default, if no coindAllowedMethods are set, the following RPC methods/routes will become available: getInfo, getmininginfo.
xxl-coind-express-api is used in the following projects:
- xxl-coind-explorer (in development)
If you use xxl-coind-express-api in your projects submit a pull request to the readme with a link for review, open collaboration and improvements are welcomed!
Copyright (C) 2018 Pixxl
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