openethereum/js/src/api/pubsub/pubsubBase.js

39 lines
1.3 KiB
JavaScript

// Copyright 2015-2017 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/>.
export default class PubsubBase {
// Provider for websocket pubsub transport
constructor (transport) {
this._transport = transport;
}
addListener (module, eventName, callback, eventParams = []) {
if (eventName) {
return this._transport.subscribe(module, callback, eventParams ? [eventName, eventParams] : [eventName]);
}
return this._transport.subscribe(module, callback, eventParams);
}
removeListener (subscriptionIds) {
return this._transport.unsubscribe(subscriptionIds);
}
unsubscribe (subscriptionIds) {
return this.removeListener(subscriptionIds);
}
}