react-native-background-upload

OpenSpace home-grown background uploader for React Native. on iOS it uses URLSession, on Android it uses CoroutineWorker and Ktor.

Documentation has been modified to reflect the changes made to this library.

Installation

1. Install package

yarn add react-native-background-upload

Note: if you are installing on React Native < 0.47, use react-native-background-upload@3.0.0 instead of react-native-background-upload

2. Native Setup

iOS

cd ./ios && pod install && cd ../

3. Expo

To use this library with Expo one must first detach (eject) the project and follow step 2 instructions. Additionally on iOS there is a must to add a Header Search Path to other dependencies which are managed using Pods. To do so one has to add $(SRCROOT)/../../../ios/Pods/Headers/Public to Header Search Path in VydiaRNFileUploader module using XCode.

Usage

import Upload from 'react-native-background-upload';

const options = {
  url: 'https://myservice.com/path/to/post',
  path: 'file://path/to/file/on/device',
  method: 'POST',
  type: 'raw',
  headers: {
    'content-type': 'application/octet-stream', // Customize content-type
    'my-custom-header': 's3headervalueorwhateveryouneed',
  },
  android: {
    notificationChannel: 'my-channel-id',
    notificationId: 'my-progress-notification',
    notificationTitle: 'Uploading...',
    notificationTitleNoWifi: 'Waiting for Wifi...',
    notificationTitleNoInternet: 'Waiting for Internet...',
  },
  useUtf8Charset: true,
};

Upload.addListener('progress', uploadId, (data) => {
  console.log(`Progress: ${data.progress}%`);
});
Upload.addListener('error', uploadId, (data) => {
  console.log(`Error: ${data.error}%`);
});
Upload.addListener('cancelled', uploadId, (data) => {
  console.log(`Cancelled!`);
});
Upload.addListener('completed', uploadId, (data) => {
  // data includes responseCode: number and responseBody: Object
  console.log('Completed!');
});
Upload.android.addNotificationListener(() => {
  console.log('Progress notification pressed!');
});

Upload.startUpload(options)
  .then((uploadId) => console.log('Upload started', uploadId))
  .catch((err) => console.log('Upload error!', err));

Multipart Uploads

🚧 COMING SOON

Just set the type option to multipart and set the field option. Example:

const options = {
  url: 'https://myservice.com/path/to/post',
  path: 'file://path/to/file%20on%20device.png',
  method: 'POST',
  field: 'uploaded_media',
  type: 'multipart'
}

Note the field property is required for multipart uploads.

API

Top Level Functions

All top-level methods are available as named exports or methods on the default export.

startUpload(options)

The primary method you will use, this starts the upload process.

Returns a promise with the string ID of the upload. Will reject if the file doesn't exist or unknown native problems.

options is an object with following values:

Note: You must provide valid URIs. react-native-background-upload does not escape the values you provide.

Name	Type	Required	Default	Description	Example
url	string	Required		URL to upload to	https://myservice.com/path/to/post
path	string	Required		File path on device	file://something/coming/from%20the%20device.png
type	'raw' or 'multipart'	Optional	raw	Primary upload type.
method	string	Optional	POST	HTTP method
customUploadId	string	Optional		startUpload returns a Promise that includes the upload ID, which can be used for future status checks. By default, the upload ID is automatically generated. This parameter allows a custom ID to use instead of the default.
headers	object	Optional		HTTP headers	{ 'Accept': 'application/json' }
field	string	Required if type: 'multipart'		The form field name for the file. Only used when type: 'multipart	uploaded-file
parameters	object	Optional		Additional form fields to include in the HTTP request. Only used when type: 'multipart
notification	Notification object (see below)	Optional		Android only.	{ enabled: true, onProgressTitle: "Uploading...", autoClear: true }
useUtf8Charset	boolean	Optional		Android only. Set to true to use utf-8 as charset.
appGroup	string	Optional	iOS only. App group ID needed for share extensions to be able to properly call the library. See: https://developer.apple.com/documentation/foundation/nsfilemanager/1412643-containerurlforsecurityapplicati

Notification Object (Android Only)

Android forces us to display a progress notification to show overall upload progress.

Name	Type	Required	Description	Example
notificationChannel	string	Optional	Sets android notification channel	background-upload-channel
notificationId	string	Optional	A custom ID for the notification	upload-progress
notificationTitle	string	Optional	Sets the default title for the notification	Uploading...
notificationTitleNoWifi	string	Optional	Sets notification title for uploads awaiting wifi	Waiting for Wifi...
notificationTitleNoInternet	string	Optional	Sets notification title for uploads awaiting internet connection	Waiting for Internet...

cancelUpload(uploadId)

Cancels an upload.

uploadId is the result of the Promise returned from startUpload

Returns a Promise that resolves to an boolean indicating whether the upload was cancelled.

addListener(eventType, uploadId, listener)

Adds an event listener, possibly confined to a single upload.

eventType Event to listen for. Values: 'progress' | 'error' | 'completed' | 'cancelled'

uploadId The upload ID from startUpload to filter events for. If null, this will include all uploads.

listener Function to call when the event occurs.

Returns an EventSubscription. To remove the listener, call remove() on the EventSubscription.

android.addNotificationListener(listener)

When the upload progress notification is pressed, it will open the app and fire this event. There's no event data for this.

Events

progress

Event Data

Name	Type	Required	Description
id	string	Required	The ID of the upload.
progress	0-100	Required	Percentage completed.

error

Event Data

Name	Type	Required	Description
id	string	Required	The ID of the upload.
error	string	Required	Error message.

completed

Event Data

Name	Type	Required	Description
id	string	Required	The ID of the upload.
responseCode	string	Required	HTTP status code received
responseBody	string	Required	HTTP response body
responseHeaders	string	Required	HTTP response headers (Android)

cancelled

Event Data

Name	Type	Required	Description
id	string	Required	The ID of the upload.

FAQs

Does it support iOS camera roll assets?

Yes, as of version 4.3.0.

Does it support multiple file uploads?

Yes and No. It supports multiple concurrent uploads, but only a single upload per request. That should be fine for 90%+ of cases.

Why should I use this file uploader instead of others that I've Googled like react-native-uploader?

This package has two killer features not found anywhere else (as of 12/16/2016). First, it works on both iOS and Android. Others are iOS only. Second, it supports background uploading. This means that users can background your app and the upload will continue. This does not happen with other uploaders.

Contributing

See CONTRIBUTING.md.

Common Issues

Gratitude

Many thanks to the Original Library for the boilerplate and inspiration