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react-use-user-media

v0.0.0

Published

React hook for accessing user media.

Downloads

26

Readme

react-use-user-media

CircleCI Coverage Status

React hook for accessing user media.

Installation

Using npm:

$ npm install --save react-use-user-media

Using yarn:

$ yarn add react-use-user-media

Since this module uses React Hooks, to try this out you'll need to install at least the 16.8.0 version of react and react-dom:

$ yarn add react@^16.8.0 react-dom@^16.8.0

Usage

import React, { useEffect, useRef } from 'react';
import useUserMedia from 'react-use-user-media';

const constraints = { video: true };

function Example() {
  const { state, stream } = useUserMedia(constraints);
  const ref = useRef();

  useEffect(() => {
    if (state !== 'resolved' || !stream) {
      return;
    }

    ref.current.srcObject = stream;
    ref.current.play();
  }, [state, stream]);

  if (state === 'pending') {
    return <p>Waiting...</p>;
  }

  if (state === 'rejected') {
    return <p>Error: {error.message}</p>;
  }

  return <video ref={ref} />;
}

API

useUserMedia(Object): {
  error: Error,
  state: 'pending' | 'resolved' | 'rejected',
  stream: MediaStream
}

Receives a constraints object to call getUserMedia with and returns an object with the stream, the error and the state.

Note: When the constraints change a new media stream will be requested, so make sure you don't create a new constraints object on every render.

Contributing

Please feel free to submit any issues or pull requests.

License

MIT