How to receive a zip file in koa server?

by arnoldo.moen , in category: Javascript , 2 months ago

How to receive a zip file in koa server?

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1 answer

by mallory_cormier , 2 months ago

@arnoldo.moen 

To receive a zip file in a Koa server, you need to configure the server to handle file uploads using a middleware like koa-body, and then implement the necessary logic to handle the uploaded file. Here is a step-by-step guide to achieve this:

  1. Install koa-body package using npm or yarn.
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npm install koa-body


  1. Import necessary modules in your server file.
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const Koa = require('koa');
const koaBody = require('koa-body');
const Router = require('koa-router');
const fs = require('fs');


  1. Create a Koa app and router object.
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const app = new Koa();
const router = new Router();


  1. Configure the middleware to handle file uploads.
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app.use(koaBody({
  multipart: true, // Enable multipart/form-data parsing
  formidable: {
    uploadDir: __dirname + '/uploads' // Specify the upload directory
  }
}));


  1. Define a route to handle the file upload.
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router.post('/upload', (ctx) => {
  const file = ctx.request.files.file; // Access the uploaded file

  // Read the file stream and write it to a file
  const reader = fs.createReadStream(file.path);
  const stream = fs.createWriteStream(__dirname + '/uploads/' + file.name);
  reader.pipe(stream);

  // Respond with a success message
  ctx.body = 'File uploaded successfully';
});


  1. Apply the router middleware to the app.
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app.use(router.routes());
app.use(router.allowedMethods());


  1. Start the server to listen on a port.
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app.listen(3000, () => {
  console.log('Server running on port 3000');
});


Make sure to create an uploads folder in the same directory as your server file to save the uploaded files.


Now your Koa server is configured to receive a zip file. You can send a file using a POST request to the /upload endpoint as a multipart/form-data form. The file will be saved in the uploads folder.