How do I make a POST request using fetch in React Native?

How do I make a POST request using fetch in React Native?

You can use the fetch API to make a POST request in React Native. Here's a basic example:

fetch('https://example.com/api/data', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({ key: 'value' }),
})
.then(response => response.json())
.then(data => console.log(data))
.catch(error => console.error('Error:', error));

What should I include in the headers for a POST request?

Typically, you should include 'Content-Type' in the headers to specify the format of the data you're sending. For JSON data, it should be 'application/json'. You might also include authorization headers if required.

How do I handle errors in the fetch request?

You can handle errors by using the .catch() method at the end of your fetch call. Additionally, check the response status and handle different status codes accordingly.

Can I send form data instead of JSON?

Yes, you can send form data by using the FormData object. Here's an example:

const formData = new FormData();
formData.append('key', 'value');

fetch('https://example.com/api/data', {
  method: 'POST',
  body: formData,
})
.then(response => response.json())
.then(data => console.log(data));