96 lines
2.1 KiB
JavaScript
96 lines
2.1 KiB
JavaScript
/*!
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* rpcclient.js - json rpc client for bcoin
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* Copyright (c) 2014-2016, Christopher Jeffrey (MIT License).
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* https://github.com/bcoin-org/bcoin
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*/
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'use strict';
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var Network = require('../network');
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var utils = require('../utils');
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var assert = utils.assert;
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var request = require('./request');
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/**
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* BCoin RPC client.
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* @exports RPCClient
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* @constructor
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* @param {String} uri
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* @param {Object?} options
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*/
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function RPCClient(options) {
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if (!(this instanceof RPCClient))
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return new RPCClient(options);
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if (!options)
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options = {};
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if (typeof options === 'string')
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options = { uri: options };
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this.options = options;
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this.network = Network.get(options.network);
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this.uri = options.uri || 'http://localhost:' + this.network.rpcPort;
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this.apiKey = options.apiKey;
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this.id = 0;
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if (this.apiKey) {
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if (typeof this.apiKey === 'string') {
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assert(utils.isHex(this.apiKey), 'API key must be a hex string.');
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this.apiKey = new Buffer(this.apiKey, 'hex');
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}
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assert(Buffer.isBuffer(this.apiKey));
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assert(this.apiKey.length === 32, 'API key must be 32 bytes.');
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}
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}
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/**
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* Make an http request to endpoint.
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* @private
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* @param {String} method
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* @param {String} endpoint - Path.
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* @param {Object} json - Body or query depending on method.
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* @param {Function} callback - Returns [Error, Object?].
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*/
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RPCClient.prototype.call = function call(method, params, callback) {
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var self = this;
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request({
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method: 'POST',
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uri: this.uri,
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json: {
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method: method,
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params: params,
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id: this.id++
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},
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auth: {
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username: 'bitcoinrpc',
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password: this.apiKey ? this.apiKey.toString('hex') : ''
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},
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expect: 'json'
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}, function(err, res, body) {
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if (err)
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return callback(err);
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if (!body)
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return callback();
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if (res.statusCode !== 200) {
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if (body.error)
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return callback(new Error(body.error.message));
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return callback(new Error('Status code: ' + res.statusCode));
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}
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return callback(null, body.result);
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});
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};
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/*
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* Expose
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*/
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module.exports = RPCClient;
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