mirror of
https://github.com/hanzoai/firebase-js-sdk.git
synced 2026-09-24 16:59:10 +00:00
Daniel LeeandGitHub
6ab1e32756
The new .stream() API allows the client to consume streaming responses from the WIP streaming callable functions in Firebase Functions Node.js SDK.
When client makes a request to the callable function w/ header Accept: text/event-stream, the callable function responds with response chunks in Server-Sent Event format.
The sdk changes here abstracts over the wire-protocol by parsing the response chunks and returning an instance of a AsyncIterable to consume to data:
import { getFunctions, httpsCallable } from "firebase/functions";
const functions = getFunctions();
const generateText = httpsCallable(functions, 'generateText');
const resp = await generateText.stream(
{ text: 'What is your favorite Firebase service and why?' },
{ signal: AbortSignal.timeout(60_000) },
);
try {
for await (const message of resp.stream) {
console.log(message); // prints "foo", "bar"
}
console.log(await resp.data) // prints "foo bar"
} catch (e) {
// FirebaseError(code='cancelled', message='Request was cancelled.');
console.error(e)
}
1.1 KiB
1.1 KiB
Project: /docs/reference/js/_project.yaml Book: /docs/reference/_book.yaml page_type: reference
{% comment %} DO NOT EDIT THIS FILE! This is generated by the JS SDK team, and any local changes will be overwritten. Changes should be made in the source code at https://github.com/firebase/firebase-js-sdk {% endcomment %}
HttpsCallableStreamResult interface
An HttpsCallableStreamResult wraps a single streaming result from a function call.
Signature:
export interface HttpsCallableStreamResult<ResponseData = unknown, StreamData = unknown>
Properties
| Property | Type | Description |
|---|---|---|
| data | Promise<ResponseData> | |
| stream | AsyncIterable<StreamData> |
HttpsCallableStreamResult.data
Signature:
readonly data: Promise<ResponseData>;
HttpsCallableStreamResult.stream
Signature:
readonly stream: AsyncIterable<StreamData>;