66 lines
2.0 KiB
JavaScript
66 lines
2.0 KiB
JavaScript
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/*
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This file is part of ethereum.js.
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ethereum.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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ethereum.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 ethereum.js. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** @file jsonrpc.js
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* @authors:
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* Marek Kotewicz <marek@ethdev.com>
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* @date 2015
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*/
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var messageId = 1;
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/// Should be called to valid json create payload object
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/// @param method of jsonrpc call, required
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/// @param params, an array of method params, optional
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/// @returns valid jsonrpc payload object
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var toPayload = function (method, params) {
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if (!method)
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console.error('jsonrpc method should be specified!');
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return {
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jsonrpc: '2.0',
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method: method,
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params: params || [],
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id: messageId++
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};
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};
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/// Should be called to check if jsonrpc response is valid
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/// @returns true if response is valid, otherwise false
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var isValidResponse = function (response) {
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return !!response &&
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!response.error &&
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response.jsonrpc === '2.0' &&
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typeof response.id === 'number' &&
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response.result !== undefined; // only undefined is not valid json object
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};
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/// Should be called to create batch payload object
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/// @param messages, an array of objects with method (required) and params (optional) fields
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var toBatchPayload = function (messages) {
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return messages.map(function (message) {
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return toPayload(message.method, message.params);
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});
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};
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module.exports = {
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toPayload: toPayload,
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isValidResponse: isValidResponse,
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toBatchPayload: toBatchPayload
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};
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