@supabase/realtime-js
Version:
Listen to realtime updates to your PostgreSQL database
102 lines • 3.14 kB
JavaScript
"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
const constants_1 = require("../lib/constants");
class Push {
/**
* Initializes the Push
*
* @param channel The Channel
* @param event The event, for example `"phx_join"`
* @param payload The payload, for example `{user_id: 123}`
* @param timeout The push timeout in milliseconds
*/
constructor(channel, event, payload = {}, timeout = constants_1.DEFAULT_TIMEOUT) {
this.channel = channel;
this.event = event;
this.payload = payload;
this.timeout = timeout;
this.sent = false;
this.timeoutTimer = undefined;
this.ref = '';
this.receivedResp = null;
this.recHooks = [];
this.refEvent = null;
}
resend(timeout) {
this.timeout = timeout;
this._cancelRefEvent();
this.ref = '';
this.refEvent = null;
this.receivedResp = null;
this.sent = false;
this.send();
}
send() {
if (this._hasReceived('timeout')) {
return;
}
this.startTimeout();
this.sent = true;
this.channel.socket.push({
topic: this.channel.topic,
event: this.event,
payload: this.payload,
ref: this.ref,
join_ref: this.channel._joinRef(),
});
}
updatePayload(payload) {
this.payload = Object.assign(Object.assign({}, this.payload), payload);
}
receive(status, callback) {
var _a;
if (this._hasReceived(status)) {
callback((_a = this.receivedResp) === null || _a === void 0 ? void 0 : _a.response);
}
this.recHooks.push({ status, callback });
return this;
}
startTimeout() {
if (this.timeoutTimer) {
return;
}
this.ref = this.channel.socket._makeRef();
this.refEvent = this.channel._replyEventName(this.ref);
const callback = (payload) => {
this._cancelRefEvent();
this._cancelTimeout();
this.receivedResp = payload;
this._matchReceive(payload);
};
this.channel._on(this.refEvent, {}, callback);
this.timeoutTimer = setTimeout(() => {
this.trigger('timeout', {});
}, this.timeout);
}
trigger(status, response) {
if (this.refEvent)
this.channel._trigger(this.refEvent, { status, response });
}
destroy() {
this._cancelRefEvent();
this._cancelTimeout();
}
_cancelRefEvent() {
if (!this.refEvent) {
return;
}
this.channel._off(this.refEvent, {});
}
_cancelTimeout() {
clearTimeout(this.timeoutTimer);
this.timeoutTimer = undefined;
}
_matchReceive({ status, response }) {
this.recHooks.filter((h) => h.status === status).forEach((h) => h.callback(response));
}
_hasReceived(status) {
return this.receivedResp && this.receivedResp.status === status;
}
}
exports.default = Push;
//# sourceMappingURL=push.js.map