// Copyright 2015, 2016 Parity Technologies (UK) Ltd.
// This file is part of Parity.
// Parity is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
// Parity is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// You should have received a copy of the GNU General Public License
// along with Parity. If not, see <http://www.gnu.org/licenses/>.
import EventEmitter from 'eventemitter3';
export default class JsonRpcBase extends EventEmitter {
constructor () {
super();
this._id = 1;
this._debug = false;
this._connected = false;
}
encode (method, params) {
const json = JSON.stringify({
jsonrpc: '2.0',
method: method,
params: params,
id: this._id++
});
return json;
_setConnected () {
if (!this._connected) {
this._connected = true;
this.emit('open');
_setDisconnected () {
if (this._connected) {
this.emit('close');
get id () {
return this._id;
get isDebug () {
return this._debug;
get isConnected () {
return this._connected;
setDebug (flag) {
this._debug = flag;
error (error) {
if (this.isDebug) {
console.error(error);
log (log) {
console.log(log);