66 lines
1.9 KiB
JavaScript
66 lines
1.9 KiB
JavaScript
/**
|
|
* Copyright (c) 2015-present, Facebook, Inc.
|
|
* All rights reserved.
|
|
*
|
|
* This source code is licensed under the BSD-style license found in the
|
|
* LICENSE file in the root directory of this source tree. An additional grant
|
|
* of patent rights can be found in the PATENTS file in the same directory.
|
|
*
|
|
* @providesModule HMRClient
|
|
*/
|
|
'use strict';
|
|
|
|
const invariant = require('invariant');
|
|
|
|
/**
|
|
* HMR Client that receives from the server HMR updates and propagates them
|
|
* runtime to reflects those changes.
|
|
*/
|
|
const HMRClient = {
|
|
enable(platform, bundleEntry) {
|
|
invariant(platform, 'Missing required parameter `platform`');
|
|
invariant(bundleEntry, 'Missing required paramenter `bundleEntry`');
|
|
|
|
// TODO(martinb) receive host and port as parameters
|
|
const host = 'localhost';
|
|
const port = '8081';
|
|
|
|
// need to require WebSocket inside of `enable` function because the
|
|
// this module is defined as a `polyfillGlobal`.
|
|
// See `InitializeJavascriptAppEngine.js`
|
|
const WebSocket = require('WebSocket');
|
|
|
|
const activeWS = new WebSocket(
|
|
`ws://${host}:${port}/hot?platform=${platform}&` +
|
|
`bundleEntry=${bundleEntry.replace('.bundle', '.js')}`
|
|
);
|
|
activeWS.onerror = (e) => {
|
|
throw new Error(
|
|
`Hot loading isn't working because it cannot connect to the development server.
|
|
|
|
Ensure the following:
|
|
- Node server is running and available on the same network
|
|
- run 'npm start' from react-native root
|
|
- Node server URL is correctly set in AppDelegate
|
|
|
|
URL: ${host}:${port}
|
|
|
|
Error: ${e.message}`
|
|
);
|
|
};
|
|
activeWS.onmessage = ({data}) => {
|
|
data = JSON.parse(data);
|
|
if (data.type === 'update') {
|
|
eval(data.body); // eslint-disable-line no-eval
|
|
return;
|
|
}
|
|
|
|
// TODO: add support for opening filename by clicking on the stacktrace
|
|
const error = data.body;
|
|
throw new Error(error.type + ' ' + error.description);
|
|
};
|
|
},
|
|
};
|
|
|
|
module.exports = HMRClient;
|