Finished

.env

@@ -0,0 +1 @@
+PORT=5700

.eslintrc.js

@@ -1,10 +1,10 @@
 module.exports = {
   extends: '@mate-academy/eslint-config',
   env: {
-    jest: true
+    jest: true,
   },
   rules: {
-    'no-proto': 0
+    'no-proto': 0,
   },
-  plugins: ['jest']
+  plugins: ['jest'],
 };

.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

package.json

@@ -17,7 +17,7 @@
   "license": "GPL-3.0",
   "devDependencies": {
     "@mate-academy/eslint-config": "latest",
-    "@mate-academy/scripts": "^1.8.6",
+    "@mate-academy/scripts": "^1.9.12",
     "eslint": "^8.57.0",
     "eslint-plugin-jest": "^28.6.0",
     "eslint-plugin-node": "^11.1.0",
@@ -26,5 +26,9 @@
   },
   "mateAcademy": {
     "projectType": "javascript"
+  },
+  "dependencies": {
+    "dotenv": "^16.4.5",
+    "nodemon": "^3.1.7"
   }
 }

src/createServer.js

@@ -1,3 +1,39 @@
-// Write code here
-// Also, you can create additional files in the src folder
-// and import (require) them here
+const http = require('http');
+const { convertToCase } = require('./convertToCase');
+const { errorHandler } = require('./errorHandler');
+
+require('dotenv').config();
+
+const BASE = 'http://localhost' + ':' + process.env.PORT;
+
+function createServer() {
+  const server = http.createServer((req, res) => {
+    res.setHeader('Content-Type', 'application/json');
+
+    const params = new URL(req.url, BASE);
+    const textToConvert = req.url.slice(1).split('?')[0];
+    const toCase = params.searchParams.get('toCase');
+    const isError = errorHandler(res, textToConvert, toCase);
+
+    if (isError) {
+      return;
+    }
+
+    const convertedMsg = convertToCase(textToConvert, toCase);
+
+    res.statusCode = 200;
+
+    const JSONResponse = {
+      originalCase: convertedMsg.originalCase,
+      targetCase: toCase,
+      originalText: textToConvert,
+      convertedText: convertedMsg.convertedText,
+    };
+
+    res.end(JSON.stringify(JSONResponse));
+  });
+
+  return server;
+}
+
+module.exports = { createServer, BASE };

src/errorHandler.js

@@ -0,0 +1,54 @@
+function errorHandler(res, textToConvert, toCase) {
+  const availableCases = ['SNAKE', 'KEBAB', 'CAMEL', 'PASCAL', 'UPPER'];
+  const isTextApsent = textToConvert.length === 0;
+  const isToCaseParamApsent = toCase === null;
+  const isToCaseUnaccepted =
+    !availableCases.includes(toCase) && !isToCaseParamApsent;
+  const isTextApsentErrorMsg =
+    'Text to convert is required. Correct request' +
+    ' is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".';
+  const isToCaseParamApsentErrorMsg =
+    '"toCase" query param is required.' +
+    ' Correct request is: "/<TEXT_TO_CONVERT>?toCase=<CASE_NAME>".';
+  const isToCaseUnacceptedErrorMsg =
+    'This case is not supported. Available' +
+    ' cases: SNAKE, KEBAB, CAMEL, PASCAL, UPPER.';
+
+  const errorMsgsArray = [];
+
+  if (isTextApsent) {
+    const errorMessage = {
+      message: isTextApsentErrorMsg,
+    };
+
+    errorMsgsArray.push(errorMessage);
+  }
+
+  if (isToCaseParamApsent) {
+    const errorMessage = {
+      message: isToCaseParamApsentErrorMsg,
+    };
+
+    errorMsgsArray.push(errorMessage);
+  }
+
+  if (isToCaseUnaccepted) {
+    const errorMessage = {
+      message: isToCaseUnacceptedErrorMsg,
+    };
+
+    errorMsgsArray.push(errorMessage);
+  }
+
+  if (errorMsgsArray.length > 0) {
+    res.end(
+      JSON.stringify({
+        errors: errorMsgsArray,
+      }),
+    );
+
+    return true;
+  }
+}
+
+module.exports = { errorHandler };

src/main.js

@@ -1,6 +1,6 @@
-const { createServer } = require('./createServer');
+const { createServer, BASE } = require('./createServer');
 
-createServer().listen(5700, () => {
+createServer().listen(process.env.PORT, () => {
   // eslint-disable-next-line no-console
-  console.log('Server started! 🚀');
+  console.log('Server started! at: 🚀', BASE);
 });