Summary:
This is the first PR from a series of PRs grabbou and me will make to add blob support to React Native. The next PR will include blob support for XMLHttpRequest.
I'd like to get this merged with minimal changes to preserve the attribution. My next PR can contain bigger changes.
Blobs are used to transfer binary data between server and client. Currently React Native lacks a way to deal with binary data. The only thing that comes close is uploading files through a URI.
Current workarounds to transfer binary data includes encoding and decoding them to base64 and and transferring them as string, which is not ideal, since it increases the payload size and the whole payload needs to be sent via the bridge every time changes are made.
The PR adds a way to deal with blobs via a new native module. The blob is constructed on the native side and the data never needs to pass through the bridge. Currently the only way to create a blob is to receive a blob from the server via websocket.
The PR is largely a direct port of https://github.com/silklabs/silk/tree/master/react-native-blobs by philikon into RN (with changes to integrate with RN), and attributed as such.
> **Note:** This is a breaking change for all people running iOS without CocoaPods. You will have to manually add `RCTBlob.xcodeproj` to your `Libraries` and then, add it to Build Phases. Just follow the process of manual linking. We'll also need to document this process in the release notes.
Related discussion - https://github.com/facebook/react-native/issues/11103
- `Image` can't show image when `URL.createObjectURL` is used with large images on Android
The websocket integration can be tested via a simple server,
```js
const fs = require('fs');
const http = require('http');
const WebSocketServer = require('ws').Server;
const wss = new WebSocketServer({
server: http.createServer().listen(7232),
});
wss.on('connection', (ws) => {
ws.on('message', (d) => {
console.log(d);
});
ws.send(fs.readFileSync('./some-file'));
});
```
Then on the client,
```js
var ws = new WebSocket('ws://localhost:7232');
ws.binaryType = 'blob';
ws.onerror = (error) => {
console.error(error);
};
ws.onmessage = (e) => {
console.log(e.data);
ws.send(e.data);
};
```
cc brentvatne ide
Closes https://github.com/facebook/react-native/pull/11417
Reviewed By: sahrens
Differential Revision: D5188484
Pulled By: javache
fbshipit-source-id: 6afcbc4d19aa7a27b0dc9d52701ba400e7d7e98f
Summary:
To make React Native play nicely with our internal build infrastructure we need to properly namespace all of our header includes.
Where previously you could do `#import "RCTBridge.h"`, you must now write this as `#import <React/RCTBridge.h>`. If your xcode project still has a custom header include path, both variants will likely continue to work, but for new projects, we're defaulting the header include path to `$(BUILT_PRODUCTS_DIR)/usr/local/include`, where the React and CSSLayout targets will copy a subset of headers too. To make Xcode copy headers phase work properly, you may need to add React as an explicit dependency to your app's scheme and disable "parallelize build".
Reviewed By: mmmulani
Differential Revision: D4213120
fbshipit-source-id: 84a32a4b250c27699e6795f43584f13d594a9a82
Summary:
This allows consumers to subclass and extend `RCTWebSocketModule` and make use of the `RCTSRWebSocketDelegate` methods.
The use case here is to do some pre-processing of WebSocket data before handing it off to JS. Consumers could that in the following way:
```
interface MyWebSocketModule : RCTWebSocketModule
end
implementation MyWebSocketModule
// Don't use RCT_EXPORT_MODULE macro for this so we replace the existing RCTWebSocketModule.
+ (NSString *)moduleName { return @"RCTWebSocketModule"; }
RCT_EXTERN_METHOD(connect:(NSURL *)URL socketID:(nonnull NSNumber *)socketID)
RCT_EXTERN_METHOD(send:(NSString *)message socketID:(nonnull NSNumber *)socketID)
RCT_EXTERN_METHOD(close:(nonnull NSNumber *)socketID)
- (void)webSocket:(RCTSRWebSocket *)webSocket didReceiveMessage:(id)message
{
[super webSocket:webSocket didReceiveMessage:[DoSomethingWith message]];
}
end
```
... and then returning a `MyWebSocketModule` ins
Closes https://github.com/facebook/react-native/pull/5321
Reviewed By: svcscm
Differential Revision: D2832374
Pulled By: nicklockwood
fb-gh-sync-id: f208516b2b2f76276223ffc972871d96afe87e27
Summary: The JavaScript code for Android is same as the iOS counterpart, I just added few new lines and used arrow functions instead of binding `this`.
Closes https://github.com/facebook/react-native/pull/2839
Reviewed By: @svcscm, @vjeux
Differential Revision: D2498703
Pulled By: @mkonicek
fb-gh-sync-id: 3fe958dd5af0efba00df07515f8e33b5d87eb05b
Philipp von Weitershausen
Pieter De Baets
Nick Lockwood
Philipp von Weitershausen
Satyajit Sahoo