StreamingTextResponse
StreamingTextResponse has been removed in AI SDK 4.0. Use
streamText.toDataStreamResponse()
instead.
It is a utility class that simplifies the process of returning a ReadableStream of text in HTTP responses. It is a lightweight wrapper around the native Response class, automatically setting the status code to 200 and the Content-Type header to 'text/plain; charset=utf-8'.
Import
<Snippet text={import { StreamingTextResponse } from "ai"} prompt={false} />
API Signature
Parameters
<PropertiesTable content={[ { name: 'stream', type: 'ReadableStream', description: 'The stream of content which represents the HTTP response.', }, { name: 'init', isOptional: true, type: 'ResponseInit', description: 'It can be used to customize the properties of the HTTP response. It is an object that corresponds to the ResponseInit object used in the Response constructor.', properties: [ { type: 'ResponseInit', parameters: [ { name: 'status', type: 'number', isOptional: true, description: 'The status code for the response. StreamingTextResponse will overwrite this value with 200.', }, { name: 'statusText', type: 'string', isOptional: true, description: 'The status message associated with the status code.', }, { name: 'headers', type: 'HeadersInit', isOptional: true, description: "Any headers you want to add to your response. StreamingTextResponse will add 'Content-Type': 'text/plain; charset=utf-8' to these headers.", }, ], }, ], }, { name: 'data', isOptional: true, type: 'StreamData', description: 'StreamData object that you are using to generate additional data for the response.', }, ]} />
Returns
An instance of Response with the provided ReadableStream as the body, the status set to 200, and the Content-Type header set to 'text/plain; charset=utf-8'. Additional headers and properties can be added using the init parameter