how to debug eas update expo debugging tutorial

debugging an expo application, especially when using eas (expo application services) for builds and updates, can sometimes be challenging. however, with the right approach and tools, it can be made easier. this tutorial will guide you through debugging an expo application that uses eas update, providing you with best practices, useful tools, and a simple code example.

prerequisites

- basic knowledge of react native and expo.
- an expo account and a project set up with expo and eas.
- the expo cli installed on your computer. you can install it using npm:
```bash
npm install -g expo-cli
```

setting up your project

1. **create a new expo project** (if you don’t have one):
```bash
expo init myeasproject
cd myeasproject
```

2. **configure eas**:
to use eas updates, you need to configure your project with eas. run the following command:
```bash
eas build:configure
```

code example

let’s create a simple component that fetches data and manages state. we’ll introduce an error in this example for debugging purposes.

```javascript
import react, { useeffect, usestate } from 'react';
import { view, text, button } from 'react-native';

const app = () = {
const [data, setdata] = usestate(null);
const [error, seterror] = usestate(null);

// this function is purposely incorrect to simulate an error
const fetchdata = async () = {
try {
// an intentional error: incorrect url
setdata(json);
} catch (err) {
}
};

useeffect(() = {
fetchdata();
}, []);

return (
view style={{ padding: 20 }}
textdata:/text
{error ? (
text style={{ color: 'red' } ...

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