Integrating AI Image Colorizer with React Native: Updating Outdated Code

Other Questions RapidAPI
1

I’m struggling to update some old React Native code that uses an AI image colorizer API. The API now requires image uploads instead of base64 encoding. I’m using react-native-imagepicker to select images but can’t figure out how to send them to the API correctly.

Here’s what I’ve tried:

import React from 'react';
import { View, Alert } from 'react-native';
import { Button } from 'react-native-paper';
import { launchImageLibrary } from 'react-native-image-picker';
import axios from 'axios';

const ImageColorizer = () => {
  const pickImage = async () => {
    const result = await launchImageLibrary({ mediaType: 'photo' });
    if (result.assets) {
      const imageUri = result.assets[0].uri;
      colorizeImage(imageUri);
    }
  };

  const colorizeImage = async (imageUri) => {
    const formData = new FormData();
    formData.append('image', { uri: imageUri, type: 'image/jpeg', name: 'photo.jpg' });
    formData.append('renderFactor', '20');

    try {
      const response = await axios.post(
        'https://example-colorizer-api.com/colorize',
        formData,
        {
          headers: {
            'Content-Type': 'multipart/form-data',
            'X-API-Key': 'your-api-key-here'
          }
        }
      );
      Alert.alert('Success', 'Image colorized!');
    } catch (error) {
      Alert.alert('Error', 'Failed to colorize image');
    }
  };

  return (
    <View>
      <Button onPress={pickImage}>Pick and Colorize Image</Button>
    </View>
  );
};

export default ImageColorizer;

This code compiles but I get a server error when trying to colorize an image. Am I formatting the image data correctly? Any tips on debugging API issues in React Native?

2

I’ve dealt with similar API integration challenges before. One thing that stands out is the content type header. Some APIs are picky about this. Try changing ‘Content-Type’: ‘multipart/form-data’ to ‘Content-Type’: ‘application/x-www-form-urlencoded’. Also, double-check if the API expects ‘renderFactor’ as a separate parameter or if it should be part of the image object.

Another potential issue could be the image file itself. Make sure it’s not too large - some APIs have size limits. You might want to add a compression step before sending.

Lastly, for debugging, I’d recommend using a tool like Postman to test the API independently of your React Native app. This can help isolate whether the problem is with your code or the API itself. Good luck with your project!

3

Your approach seems sound, but there might be a few issues to address. First, ensure you’re using the correct API endpoint and key. Some APIs require additional authentication headers beyond just the API key.

For debugging, I’d suggest adding more detailed error logging:

catch (error) {
  console.error('API Error:', error.response ? error.response.data : error.message);
  Alert.alert('Error', 'Failed to colorize image');
}

This will give you more insight into what’s going wrong. Also, check if the API has any specific requirements for image format or size. You might need to resize or convert the image before uploading.

Lastly, consider using a library like ‘react-native-fs’ to read the file contents directly and send as binary data if the API prefers that over multipart/form-data.

4

hey there! i had similar issues. make sure ur API endpoint is correct (https://example-colorizer-api.com looks fake). also, try console.logging the response error for more details. u might need to adjust the formData structure based on API docs. good luck!