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)
}
43 lines
1.1 KiB
Markdown
43 lines
1.1 KiB
Markdown
Project: /docs/reference/js/_project.yaml
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Book: /docs/reference/_book.yaml
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page_type: reference
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{% comment %}
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DO NOT EDIT THIS FILE!
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This is generated by the JS SDK team, and any local changes will be
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overwritten. Changes should be made in the source code at
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https://github.com/firebase/firebase-js-sdk
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{% endcomment %}
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# HttpsCallableStreamResult interface
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An `HttpsCallableStreamResult` wraps a single streaming result from a function call.
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<b>Signature:</b>
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```typescript
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export interface HttpsCallableStreamResult<ResponseData = unknown, StreamData = unknown>
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```
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## Properties
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| Property | Type | Description |
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| --- | --- | --- |
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| [data](./functions.httpscallablestreamresult.md#httpscallablestreamresultdata) | Promise<ResponseData> | |
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| [stream](./functions.httpscallablestreamresult.md#httpscallablestreamresultstream) | AsyncIterable<StreamData> | |
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## HttpsCallableStreamResult.data
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<b>Signature:</b>
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```typescript
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readonly data: Promise<ResponseData>;
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```
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## HttpsCallableStreamResult.stream
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<b>Signature:</b>
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```typescript
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readonly stream: AsyncIterable<StreamData>;
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```
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