68 lines
2.2 KiB
JavaScript
68 lines
2.2 KiB
JavaScript
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/*
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This file is part of web3.js.
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web3.js is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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web3.js is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with web3.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file batch.js
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* @author Marek Kotewicz <marek@ethdev.com>
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* @date 2015
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*/
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"use strict";
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var Jsonrpc = require('./jsonrpc');
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var errors = require('web3-core-helpers').errors;
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var Batch = function (requestManager) {
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this.requestManager = requestManager;
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this.requests = [];
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};
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/**
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* Should be called to add create new request to batch request
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*
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* @method add
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* @param {Object} jsonrpc requet object
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*/
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Batch.prototype.add = function (request) {
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this.requests.push(request);
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};
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/**
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* Should be called to execute batch request
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*
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* @method execute
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*/
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Batch.prototype.execute = function () {
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var requests = this.requests;
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this.requestManager.sendBatch(requests, function (err, results) {
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results = results || [];
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requests.map(function (request, index) {
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return results[index] || {};
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}).forEach(function (result, index) {
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if (requests[index].callback) {
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if (result && result.error) {
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return requests[index].callback(errors.ErrorResponse(result));
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}
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if (!Jsonrpc.isValidResponse(result)) {
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return requests[index].callback(errors.InvalidResponse(result));
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}
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try {
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requests[index].callback(null, requests[index].format ? requests[index].format(result.result) : result.result);
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}
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catch (err) {
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requests[index].callback(err);
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}
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}
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});
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});
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};
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module.exports = Batch;
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