mate-academy · Eksonurit · Jun 27, 2026 · mateacademy-ai-mentor · Jun 27, 2026
diff --git a/.github/workflows/test.yml-template b/.github/workflows/test.yml-template
@@ -0,0 +1,23 @@
+name: Test
+
+on:
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+    - uses: actions/checkout@v2
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+    - run: npm install
+    - run: npm test
diff --git a/package-lock.json b/package-lock.json
diff --git a/package.json b/package.json
@@ -18,7 +18,7 @@
   "devDependencies": {
     "@faker-js/faker": "^8.4.1",
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^2.1.3",
     "axios": "^1.7.2",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
@@ -30,5 +30,8 @@
   },
   "mateAcademy": {
     "projectType": "javascript"
+  },
+  "dependencies": {
+    "busboy": "^1.6.0"
   }
 }
diff --git a/public/index.html b/public/index.html
@@ -0,0 +1,22 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>node_compression-app</title>
+  </head>
+  <body>
+    <h1>Compression App (with Node.js)</h1>
+    <form action="/compress" method="post" enctype="multipart/form-data">
+      <label for="select">choose compression type</label>
+      <select name="compressionType" id="select">
+        <option value="gzip">gzip</option>
+        <option value="deflate">deflate</option>
+        <option value="br">br</option>
+      </select>
+      <label for="file">select the file</label>
+      <input type="file" name="file" id="file" />
+      <button type="submit">send to server</button>
+    </form>
+  </body>
+</html>
diff --git a/src/createServer.js b/src/createServer.js
@@ -1,8 +1,95 @@
 'use strict';
 
+const http = require('http');
+const fs = require('fs/promises');
+const busboy = require('busboy');
+const zlib = require('zlib');
+const { PassThrough } = require('stream');
+
 function createServer() {
-  /* Write your code here */
-  // Return instance of http.Server class
+  const compressionTypeMap = {
+    gzip: [zlib.createGzip, 'gz'],
+    deflate: [zlib.createDeflate, 'dfl'],
+    br: [zlib.createBrotliCompress, 'br'],
+  };
+
+  return http.createServer(async (req, res) => {
+    if (req.method !== 'POST' && req.url === '/compress') {
+      res.statusCode = 400;
+      res.end();
+
+      return;
+    }
+
+    if (req.method === 'GET' && req.url === '/') {
+      try {
+        const page = await fs.readFile('./public/index.html');
+
+        res.end(page);
+
+        return;
+      } catch (err) {
+        res.end('Something went wrong');
+
+        return;
+      }
+    }
+
+    if (req.method === 'POST' && req.url === '/compress') {
+      const bb = busboy({ headers: req.headers });
+      let compressionType = '';
+      let filename;
+      let hasFile = false;
+      const pass = new PassThrough();
+
+      bb.on('field', (name, val) => {
+        if (name === 'compressionType') {
+          compressionType = val;
+        }
+      });
+
+      bb.on('file', (name, sourceFile, info) => {
+        hasFile = true;
+        filename = info.filename;
+        sourceFile.pipe(pass);
+      });
+
+      bb.on('finish', () => {
+        if (!hasFile) {
+          res.statusCode = 400;
+          res.end('No file provided');
+
+          return;
+        }
+
+        if (!compressionTypeMap[compressionType]) {
+          res.statusCode = 400;
+          res.end('Invalid compression type');
+          pass.destroy();
+
+          return;
+        }
+
+        const [compressMethod, extension] = compressionTypeMap[compressionType];
+        const compress = compressMethod();
+
+        res.setHeader(
+          'Content-Disposition',
+          `attachment; filename=${filename}.${extension}`,
+        );
+
+        pass.pipe(compress);
+        compress.pipe(res);
+      });
+
+      req.pipe(bb);
+
+      return;
+    }
+
+    res.statusCode = 404;
+    res.end('non-existing route');
+  });
 }
 
 module.exports = {