Function: toServerSentEventsStream()

function toServerSentEventsStream(stream, abortController?): ReadableStream<Uint8Array<ArrayBufferLike>>;

function toServerSentEventsStream(stream, abortController?): ReadableStream<Uint8Array<ArrayBufferLike>>;

Defined in: utilities/stream-to-response.ts:22

Convert a StreamChunk async iterable to a ReadableStream in Server-Sent Events format

This creates a ReadableStream that emits chunks in SSE format:

Each chunk is prefixed with "data: "
Each chunk is followed by "\n\n"
Stream ends with "data: [DONE]\n\n"

Parameters

stream

AsyncIterable<StreamChunk>

AsyncIterable of StreamChunks from chat()

abortController?

AbortController

Optional AbortController to abort when stream is cancelled

Returns

ReadableStream<Uint8Array<ArrayBufferLike>>

ReadableStream in Server-Sent Events format

Example

typescript

const stream = chat({ adapter: openai(), model: "gpt-4o", messages: [...] });
const readableStream = toServerSentEventsStream(stream);
// Use with Response, or any API that accepts ReadableStream

const stream = chat({ adapter: openai(), model: "gpt-4o", messages: [...] });
const readableStream = toServerSentEventsStream(stream);
// Use with Response, or any API that accepts ReadableStream