Скачать или смотреть How to Upload Images in React Native with Axios

Discover how to effectively upload images using `React-Native-Image-Picker` and `Axios` in your React Native app. Step-by-step guide included!
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This video is based on the question https://stackoverflow.com/q/65838973/ asked by the user 'amerw' ( https://stackoverflow.com/u/14593851/ ) and on the answer https://stackoverflow.com/a/65839404/ provided by the user 'Kishan Bharda' ( https://stackoverflow.com/u/8182248/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Upload Images in React Native with Axios

Uploading images in a mobile application can often be tricky, especially if you're working with various libraries and APIs. If you've been working with React Native and facing issues while trying to upload images using the React-Native-Image-Picker library with Axios, you're not alone. This post will guide you through the troubleshooting steps and provide you with a clear solution to get your image uploads working seamlessly.

The Problem

You may be facing issues where the text data uploads successfully to the server, but the image data gets lost in transmission. Typically, when you select an image using React-Native-Image-Picker, you'll get a response containing several details about the image, including the uri, fileName, and type. The following is a typical response you might receive:

[[See Video to Reveal this Text or Code Snippet]]

With this information, we need to properly configure the FormData and Axios post request to ensure the image uploads successfully.

Solution Steps

1. Save the Selected Image in State

The first step is to capture the selected image using a state variable. This will allow you to manage the image selection and further process it.

[[See Video to Reveal this Text or Code Snippet]]

2. Set the Image on Selection

Once the user selects their desired image, you should set the selected image into your state variable. You can achieve that using the following code:

[[See Video to Reveal this Text or Code Snippet]]

3. Create FormData

Next, you'll need to create a FormData instance. This is crucial for preparing the data to be sent in your POST request. Build your FormData object like so:

[[See Video to Reveal this Text or Code Snippet]]

4. Send With Axios

You can then easily send the FormData using Axios. Here’s how you can structure your Axios request:

[[See Video to Reveal this Text or Code Snippet]]

Important Points to Note

Content-Type: Ensure that the header for Content-Type is set to multipart/form-data when making the request. This is crucial for file uploads.

Handling Errors: Implement error handling within your Axios request to catch any failures or issues during the upload process.

Conclusion

By following these steps, you can successfully upload images using React-Native-Image-Picker and Axios in your React Native application. Be sure to define your FormData correctly and handle the image URI properly based on the platform. If you encounter any issues, refer back to these steps as a checklist to troubleshoot your upload process. Happy coding!