Error encountered when retrieving data from Express using Angular service within Electron

Currently, I am facing a challenge with my Angular 4 app integrated within Electron and using express.js to fetch data from MongoDB. My dilemma lies in the communication process with express through http requests.

Within my angular service, there is a method designed to retrieve all player data.

dataUrl: string = "/api/player/all";
getPlayers(): Observable<any> {
  return this.dataService.getCookedData(this.dataUrl,  this.finalizePlayerData); //this function works fine in a regular web browser.
}

In my express.js setup, the API endpoint has been created as follows:

router.get('/all', (req: Request, res: Response) => {
  player.find().then((result) => {
    res.send(result);
  });
});

However, my application is experiencing a 404 error with the following message:

zone.js:1980 GET file:///api/player/all net::ERR_FILE_NOT_FOUND

I am aware that the issue stems from file:/// instead of http://, but I am uncertain about how to rectify this. Any suggestions or guidance?

Answer №1

When loading the window from a local file rather than an Express server:

browserWindow.loadUrl('file:///index.html')

It is crucial to ensure that the same base URL is used for all XHR requests, including Http.

Whether the API is hosted on a remote or local server, the base URL must be hard-coded:

export const API_BASE_URL = 'http://localhost:3456';
...
http.get(`${API_BASE_URL}/api/player/all`)...

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