React Native fetch fail

Question

When I use fetch() method to make get request, it failed with "TypeError: Network request failed". It's weird that it sometimes failed but sometimes succeeded. I have tried the solution here: React Native fetch() Network Request Failed, but it didn't work for me. By the way, I am using Android.

This is my code :

try {
  let url = "http://140.116.245.229:3000/GetCarsJson";

  let data = await fetch(url);
  let toJson = await data.json();
} catch(err) {
  throw err;
}

This is the error message : enter image description here

Use axios instead of fetch – Hammad Hassan Apr 14 '21 at 07:59 — Hammad Hassan, Apr 14 '21 at 07:59
It returned the "Error: Network Error" – khjhs101198 Apr 14 '21 at 14:25 — khjhs101198, Apr 14 '21 at 14:25

score 0 · Answer 1 · answered Apr 15 '21 at 04:01

0

You should ensure your devices/simulator/emulator can connect to this endpoint

If you use Android emulator, you can refer this link How to connect to a local server from an android emulator?

answered Apr 15 '21 at 04:01

Dinh Huynh

204
1
5

Can i ask why i should check the endpoint? – khjhs101198 Apr 15 '21 at 08:35
to ensure your `devices/simulator/emulator` can connect to the endpoint – Dinh Huynh Apr 16 '21 at 09:13

React Native fetch fail

1 Answers1