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+# client electron integration
+
+## Updating Electron app with newer NPM release of client
+
+1. Publish a newer version of the React client to NPM by running `npm run publish:public`
+    (you can use [`npm version`](https://docs.npmjs.com/cli/version) - [short doc here](https://github.com/bbc/react-transcript-editor/blob/master/docs/notes/2019-07-31-npm-tags.md))
+2. In the [`digital-paper-edit-electron`](https://github.com/bbc/digital-paper-edit-electron/blob/master/package.json) repo, update the DPE React Client (eg `npm install @bbc/digital-paper-edit-clint@latest`)
+3. Bump Electron NPM app version (refer to step 1)
+4. Push to master (Travis CI will automatically make a new release in [github releases](https://github.com/bbc/digital-paper-edit-electron/releases/))
+
+
+## How does it work?
+### `package.json`
+The command `npm run publish:public` publishes to npm, see `package.json`:
+
+```js
+"publish:public": "npm run publish:prep && npm publish build --access public",
+```
+
+This runs the `publish:prep` step as well, which builds, copies and remove necessary files:
+
+```js
+"publish:prep": "npm run build && cp package.json ./build/package.json && cp README.md ./build/README.md && rimraf ./build/db",
+```
+
+### `index.html`
+
+The client uses [`create-react-app`](https://create-react-app.dev/).
+In the `/public/index.html` folder, there is the `index` file for the react app, which contains logic that makes the `ElectronWrapper` available.
+
+```js
+...
+      if(window.process && window.process.versions.electron){
+        const { app } = require('electron').remote;
+        const path = require('path');
+        const appPath = app.getAppPath();
+        // changing path to simplify being able to load electron wrapper from this index.html file, 
+        // which will be deep in node_modules
+        window.process.chdir(appPath)
+        const ElectronWrapper = require(path.join(appPath,'src','ElectronWrapper','index.js'));
+        window.ElectronWrapper = ElectronWrapper;
+      }
+  ...
+```
+
+This line changes directory to simplify loading of the electron wrapper from this file, as the wrapper will be deep in node_modules.
+
+```js
+window.process.chdir(appPath)
+```
+
+This line `window.ElectronWrapper = ElectronWrapper;` makes `ElectronWrapper` available in the `ApiWrapper` to replace the default `ApiWrapper` in `/src/ApiWrapper/index.js` React client app. 
+The `APIWrapper` module uses [dynamic export](https://medium.com/@WebReflection/javascript-dynamic-import-export-b0e8775a59d4)
+
+
+```js
+const ElectronWrapper = require(path.join(appPath,'src','ElectronWrapper','index.js'));
+```
+The actual `ElectronWrapper` module, `/src/ElectronWrapper/index.js` is in the [`digital-paper-edit-electron`](https://github.com/bbc/digital-paper-edit-electron/tree/master/src/ElectronWrapper) repository, [`bbc/digital-paper-edit-electron/src/ElectronWrapper`](https://github.com/bbc/digital-paper-edit-electron/tree/master/src/ElectronWrapper).
+
+
+
+
+There is scope to simplify the accessing of dependencies, but is currently at a lower priority.
+