React Fetch Empty after Flask API Request

 It's hard to pinpoint the exact issue without seeing your code, but here are some general suggestions that might help you troubleshoot:

1. Check if you are making the API request correctly by using a tool like Postman or Insomnia. This will help you isolate if the issue is with your code or with the API.

2. Make sure that the API endpoint is returning data in the expected format, such as JSON or XML. If the API is returning a different format, you may need to adjust your code to handle it correctly.

3. Double-check your fetch request syntax to ensure that it is correct. This includes the URL, any headers, and any other parameters that you are passing in the request.

4. Check the console for any errors that may be preventing the response from being returned. This could include network errors, syntax errors, or any other type of error that may be causing the fetch to fail.

5. If you are using a framework like React, make sure that you are using the appropriate lifecycle methods to make the API request and update the state of your component.

Here is an example code snippet for making a fetch request in React:

javascript
import React, { useState, useEffect } from 'react';

function Gallery() {
  const [images, setImages] = useState([]);

  useEffect(() => {
    fetch('http://example.com/images')
      .then(response => response.json())
      .then(data => setImages(data))
      .catch(error => console.log(error));
  }, []);

  return (
    <div>
      {images.map(image => (
        <img src={image.url} alt={image.title} />
      ))}
    </div>
  );
}

export default Gallery;

In this example, the useEffect hook is used to make the API request when the component mounts. The setImages function is used to update the state of the component with the data returned from the API. If there is an error, it is logged to the console. Finally, the component renders the images as img tags.