inngest/components/realtime/subscribe/index.js

Official SDK for Inngest.com. Inngest is the reliability layer for modern applications. Inngest combines durable execution, events, and queues into a zero-infra platform with built-in observability.

import { TokenSubscription } from "./TokenSubscription.js";

//#region src/components/realtime/subscribe/index.ts
async function subscribe(token, callback) {
	const app = token.app;
	const getSubscriptionToken$1 = app ? (channel, topics) => app["inngestApi"].getSubscriptionToken(channel, topics) : void 0;
	const subscription = new TokenSubscription({
		token,
		apiBaseUrl: token.apiBaseUrl ?? app?.apiBaseUrl,
		getSubscriptionToken: getSubscriptionToken$1,
		validate: token.validate
	});
	await subscription.connect();
	const extras = {
		getJsonStream: () => subscription.getJsonStream(),
		getEncodedStream: () => subscription.getEncodedStream(),
		close: (reason) => subscription.close(reason),
		unsubscribe: (reason) => subscription.close(reason)
	};
	const onMessage = token.onMessage || callback;
	if (onMessage) {
		const callbackStream = subscription.getJsonStream();
		subscription.useCallback(onMessage, callbackStream, token.onError);
	}
	if (token.onMessage) return extras;
	const retStream = subscription.getJsonStream();
	return Object.assign(retStream, extras);
}
const getSubscriptionToken = async (app, args) => {
	const channelId = typeof args.channel === "string" ? args.channel : args.channel.name;
	if (!channelId) throw new Error("Channel ID is required to create a subscription token");
	const key = await app["inngestApi"].getSubscriptionToken(channelId, args.topics);
	return {
		channel: args.channel,
		topics: args.topics,
		key,
		apiBaseUrl: app?.apiBaseUrl
	};
};
const getClientSubscriptionToken = async (app, args) => {
	const token = await getSubscriptionToken(app, args);
	if (!token.key) throw new Error("No realtime subscription token key returned");
	return {
		key: token.key,
		apiBaseUrl: token.apiBaseUrl
	};
};

//#endregion
export { getClientSubscriptionToken, getSubscriptionToken, subscribe };
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