Context:

• I have a mobile app with a login functionality that sends a POST request to a local API hosted on my PC at http://192.168.1.110:8000/api/login or (http://127.0.0.1:8000/api/login).

• The code works perfectly on an emulator but fails on a physical iPhone with a “Network request failed” error and a console warning about an unhandled promise rejection.

  const response = await fetch(
  ‘http://192.168.1.110:8000/api/login?email=’ +
  ${email} +
  ‘&password=’ +
  ${password},
  {
  method: ‘POST’,
  headers: {
  Accept: ‘application/json’,
  ‘Content-Type’: ‘application/json’,
  },
  },
  );

Troubleshooting Steps Taken:

• Verified firewalls on your PC and router are not blocking the connection.
• Confirmed both the iPhone and PC are on the same Wi-Fi network.