ngx-actioncable
Version:
Library for real-time communication over websockets with Rails ActionCable.
80 lines • 11 kB
JavaScript
import { Injectable, Optional } from '@angular/core';
import { NgxActionCableBroadcaster } from './ngx-action-cable-broadcaster';
import * as ActionCable from 'actioncable';
import * as i0 from "@angular/core";
import * as i1 from "./ngx-action-cable-configuration";
export class NgxActionCableService {
constructor(configuration) {
this.configuration = configuration;
this.cables = new Map();
this.channels = {};
// TODO: remove this workaround -> createWebSocketURL is undefined exception
// in action_cable.js
let w = window;
w.createWebSocketURL = ActionCable.createWebSocketURL;
configuration.urls.forEach((url, key) => {
let cable = this.connect(key, url);
this.cables.set(key, cable);
});
}
subscribe(key, channel, params = {}) {
let channelName = this.getChannelName(channel, params);
let subscriptionParams = Object.assign({ channel: channel }, params);
let broadcaster = new NgxActionCableBroadcaster();
let cable = this.getCabel(key);
let subscription = cable.subscriptions.create(subscriptionParams, {
received: (data) => {
broadcaster.broadcast(data.action, data);
}
});
this.channels[channelName] = {
subscription: subscription,
broadcaster: broadcaster
};
return broadcaster;
}
unsubscribe(key, channel, params = {}) {
let channelName = this.getChannelName(channel, params);
let cable = this.getCabel(key);
if (!this.channels[channelName]) {
console.info(`No Subscription for Channel ${channelName} found!`);
}
else {
let subscription = this.channels[channelName].subscription;
cable.subscriptions.remove(subscription);
}
}
perform(channel, params = {}, action, data) {
let channelName = this.getChannelName(channel, params);
this.channels[channelName].subscription.perform(action, data);
}
connect(key, url) {
let cable = ActionCable.createConsumer(url);
cable.connect();
return cable;
}
disconnect(key) {
let cable = this.getCabel(key);
cable.disconnect();
}
getChannelName(channel, params = {}) {
let channelName = (typeof (channel) === 'object') ? channel['channel'] : channel;
channelName += `_${JSON.stringify(params)}`; // also add params to unique channel name
return channelName;
}
getCabel(key) {
let cable = this.cables.get(key);
if (!cable) {
throw Error(`No cable instance for key ${key} found!`);
}
return cable;
}
}
NgxActionCableService.ɵfac = i0.ɵɵngDeclareFactory({ minVersion: "12.0.0", version: "13.3.4", ngImport: i0, type: NgxActionCableService, deps: [{ token: i1.NgxActionCableConfiguration, optional: true }], target: i0.ɵɵFactoryTarget.Injectable });
NgxActionCableService.ɵprov = i0.ɵɵngDeclareInjectable({ minVersion: "12.0.0", version: "13.3.4", ngImport: i0, type: NgxActionCableService });
i0.ɵɵngDeclareClassMetadata({ minVersion: "12.0.0", version: "13.3.4", ngImport: i0, type: NgxActionCableService, decorators: [{
type: Injectable
}], ctorParameters: function () { return [{ type: i1.NgxActionCableConfiguration, decorators: [{
type: Optional
}] }]; } });
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