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be56a3efee
Summary: This PR is a followup to https://github.com/facebook/react-native/pull/11417 and should be merged after that one is merged. 1. Add support for creating blobs from strings, not just other blobs 1. Add the `File` constructor which is a superset of `Blob` 1. Add the `FileReader` API which can be used to read blobs as strings or data url (base64) 1. Add support for uploading and downloading blobs via `XMLHttpRequest` and `fetch` 1. Add ability to download local files on Android so you can do `fetch(uri).then(res => res.blob())` to get a blob for a local file (iOS already supported this) 1. Clone the repo https://github.com/expo/react-native-blob-test 1. Change the `package.json` and update `react-native` dependency to point to this branch, then run `npm install` 1. Run the `server.js` file with `node server.js` 1. Open the `index.common.js` file and replace `localhost` with your computer's IP address 1. Start the packager with `yarn start` and run the app on your device If everything went well, all tests should pass, and you should see a screen like this: ! Pull to rerun all tests or tap on specific test to re-run it [GENERAL] [FEATURE] [Blob] - Implement blob support for XMLHttpRequest Closes https://github.com/facebook/react-native/pull/11573 Reviewed By: shergin Differential Revision: D6082054 Pulled By: hramos fbshipit-source-id: cc9c174fdefdfaf6e5d9fd7b300120a01a50e8c1
59 lines
1.2 KiB
JavaScript
59 lines
1.2 KiB
JavaScript
/**
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* Copyright (c) 2013-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*
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* @providesModule File
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* @flow
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* @format
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*/
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'use strict';
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const Blob = require('Blob');
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const invariant = require('fbjs/lib/invariant');
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import type {BlobOptions} from 'BlobTypes';
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/**
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* The File interface provides information about files.
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*/
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class File extends Blob {
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/**
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* Constructor for JS consumers.
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*/
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constructor(
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parts: Array<Blob | string>,
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name: string,
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options?: BlobOptions,
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) {
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invariant(
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parts != null && name != null,
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'Failed to construct `File`: Must pass both `parts` and `name` arguments.',
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);
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super(parts, options);
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this.data.name = name;
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}
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/**
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* Name of the file.
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*/
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get name(): string {
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invariant(this.data.name != null, 'Files must have a name set.');
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return this.data.name;
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}
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/*
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* Last modified time of the file.
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*/
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get lastModified(): number {
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return this.data.lastModified || 0;
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}
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}
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module.exports = File;
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