How to Send application/zip Files in React Native Using JSZip and RNFetchBlob

A step-by-step guide on how to generate and upload a zip file in React Native using JSZip and RNFetchBlob. Learn to package multiple CSV files and a TXT file for effective data transmission.
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How to Send application/zip Files in React Native

In today's mobile application landscape, sending files over the network is a common requirement. Particularly, you might find yourself needing to combine multiple files into one single package - a zip file. In this guide, we will explore how to generate a zip file containing multiple CSV files and a text file in a React Native application. Following that, we will cover how to upload that zip file to a server using RNFetchBlob. Let's dive into the solution step-by-step.

The Problem: Creating and Uploading a Zip File

The initial question posed is how to create a zip file that includes several CSV files along with a text file, and then send this zip file with the correct Content-Type header. The user had attempted to use the JSZip library but faced issues with the file format being unsupported when sending through react-native-fetch-blob. Let's break down a successful approach to resolving this issue.

The Solution

Step 1: Install Required Libraries

To generate and upload your zip file in React Native, you'll need a few additional libraries. Here’s how to install them:

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

These libraries provide functionalities for zipping files, file system access, and fetching blob data respectively.

Step 2: Prepare the Files for Zipping

First, you'll need to prepare the files that you want to include in your zip file. Here’s how to perform file writing and zipping:

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

Step 3: Generate the Zip File

Once your files are prepared, the next step is zipping them together:

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

Step 4: Uploading the Zip File

After successfully creating your zip file, the final step is to upload it using RNFetchBlob. This method allows you to send the zip file to the server while setting the appropriate headers.

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

Summary

To summarize, we have covered the essential steps to create and upload a zip file in React Native:

Installation of necessary libraries for zipping and file handling.

Preparation of the files to be zipped by writing to the file system.

Zipping the files together into one single file.

Uploading the zip file to a server using RNFetchBlob with the correct headers.

This approach enables a seamless method to bundle and send multiple files in React Native applications efficiently.

By following these steps and refining the code as needed for your specific use case, you should be able to handle application/zip file uploads with ease in your React Native app.