Hook for creating a new Stream.

​
Usage

import { useCreateStream } from '@livepeer/react';

The stream ID should only be passed to users who are allowed to modify the stream. Ensure viewers are only provided with the playbackId, which is a limited identifier that provides only the ability to stream media using the Player.

The following example shows how a stream can be created.

const streamName = `New Stream`;

function SomeComponent() {
  const {
    mutate: createStream,
    data: stream,
    status,
  } = useCreateStream({ name: streamName });

  return (
    <div>
      <button
        disabled={status === "loading" || !createStream}
        onClick={() => createStream?.()}
      >
        Create Stream
      </button>
      {stream && <div>Stream Key: {stream.streamKey}</div>}
    </div>
  );
}

​
Return Value

The return value is partially based on Tanstack Query, with some return types aggregated for simplicity.

{
  data?: Stream,
  error?: Error,
  isError: boolean,
  isIdle: boolean,
  isLoading: boolean,
  isSuccess: boolean,
  status: 'idle' | 'loading' | 'success' | 'error',
  mutate: () => void,
  mutateAsync: () => Promise<Stream>,
  variables?: CreateStreamArgs
}

​
Configuration

​
name

The name for the new stream. Required to create a stream.

function SomeComponent() {
  const { mutate: createStream } = useCreateStream({
    name: "My new stream",
  });
}

​
profiles

Transcoding profiles to use for the stream for ABR playback. When this is not defined, the defaultTranscodingProfiles are used (720p, 480p, and 360p).

​
record

Whether to create recordings of the stream sessions. Defaults to false.

​
multistream

The configuration for multistreaming (AKA “restream” or “simulcast”) - allows configuration of targets where this stream should be simultaneously streamed to.

​
playbackPolicy

Configuration for stream playback access-control policy. Defaults to public.

type PlaybackPolicy = {
  /**
   * The type of playback policy to apply. `jwt` requires a signed JWT for
   * playback. `webhook` requires that a webhook is configured and passed during the
   * creation of the asset. `public` indicates no
   * access control will be applied (anyone with the `playbackId` can
   * view without a JWT or webhook).
   */
  type: "webhook" | "jwt" | "public";
};

type WebhookPlaybackPolicy<TContext extends object> = PlaybackPolicy & {
  type: "webhook";
  /** The ID of the webhook which has already been created. */
  webhookId: string;
  /** The context which is passed to the webhook when it is called on playback. */
  webhookContext: TContext;
};

​
mutationConfig

The mutationConfig parameter allows for any Tanstack Query useMutation options, such as cacheTime or retry. These override any configs passed by default by the internal hook.

{4}
function SomeComponent() {
  const { mutate: createStream } = useCreateStream({
    name: "My new stream",
    mutationConfig: { retry: 3 },
  });
}

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