Reinit git

.eslintignore

@@ -0,0 +1,2 @@
+/build
+/node_modules

.eslintrc.json

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+{
+  "env": {
+    "node": true,
+    "commonjs": true,
+    "es2021": true
+  },
+  "extends": ["standard", "eslint:recommended", "plugin:prettier/recommended"],
+  "plugins": ["prettier"],
+  "parserOptions": {
+    "ecmaVersion": "latest"
+  },
+  "rules": {
+    "space-before-function-paren": [
+      "error",
+      {
+        "anonymous": "never",
+        "named": "never",
+        "asyncArrow": "always"
+      }
+    ],
+    "semi": ["error", "always"],
+    "no-use-before-define": "off",
+    "complexity": ["warn", { "max": 7 }],
+    "max-params": ["warn", 4],
+    "max-statements": ["warn", 20],
+    "max-statements-per-line": ["warn", { "max": 1 }],
+    "max-nested-callbacks": ["warn", { "max": 3 }],
+    "max-lines": [
+      "error",
+      {
+        "max": 300,
+        "skipBlankLines": true,
+        "skipComments": true
+      }
+    ],
+    "max-lines-per-function": [
+      "warn",
+      {
+        "max": 200,
+        "skipBlankLines": true,
+        "skipComments": true
+      }
+    ]
+  }
+}

.github/workflows/codeql.yml

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+# For most projects, this workflow file will not need changing; you simply need
+# to commit it to your repository.
+#
+# You may wish to alter this file to override the set of languages analyzed,
+# or to provide custom queries or build logic.
+#
+# ******** NOTE ********
+# We have attempted to detect the languages in your repository. Please check
+# the `language` matrix defined below to confirm you have the correct set of
+# supported CodeQL languages.
+#
+name: "CodeQL"
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  schedule:
+    - cron: '16 14 * * 5'
+
+jobs:
+  analyze:
+    name: Analyze
+    # Runner size impacts CodeQL analysis time. To learn more, please see:
+    #   - https://gh.io/recommended-hardware-resources-for-running-codeql
+    #   - https://gh.io/supported-runners-and-hardware-resources
+    #   - https://gh.io/using-larger-runners
+    # Consider using larger runners for possible analysis time improvements.
+    runs-on: ${{ (matrix.language == 'swift' && 'macos-latest') || 'ubuntu-latest' }}
+    timeout-minutes: ${{ (matrix.language == 'swift' && 120) || 360 }}
+    permissions:
+      # required for all workflows
+      security-events: write
+
+      # only required for workflows in private repositories
+      actions: read
+      contents: read
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: [ 'javascript-typescript' ]
+        # CodeQL supports [ 'c-cpp', 'csharp', 'go', 'java-kotlin', 'javascript-typescript', 'python', 'ruby', 'swift' ]
+        # Use only 'java-kotlin' to analyze code written in Java, Kotlin or both
+        # Use only 'javascript-typescript' to analyze code written in JavaScript, TypeScript or both
+        # Learn more about CodeQL language support at https://aka.ms/codeql-docs/language-support
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v4
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v3
+      with:
+        languages: ${{ matrix.language }}
+        # If you wish to specify custom queries, you can do so here or in a config file.
+        # By default, queries listed here will override any specified in a config file.
+        # Prefix the list here with "+" to use these queries and those in the config file.
+
+        # For more details on CodeQL's query packs, refer to: https://docs.github.com/en/code-security/code-scanning/automatically-scanning-your-code-for-vulnerabilities-and-errors/configuring-code-scanning#using-queries-in-ql-packs
+        # queries: security-extended,security-and-quality
+
+
+    # Autobuild attempts to build any compiled languages (C/C++, C#, Go, Java, or Swift).
+    # If this step fails, then you should remove it and run the build manually (see below)
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v3
+
+    # ℹ️ Command-line programs to run using the OS shell.
+    # 📚 See https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#jobsjob_idstepsrun
+
+    #   If the Autobuild fails above, remove it and uncomment the following three lines.
+    #   modify them (or add more) to build your code if your project, please refer to the EXAMPLE below for guidance.
+
+    # - run: |
+    #     echo "Run, Build Application using script"
+    #     ./location_of_script_within_repo/buildscript.sh
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v3
+      with:
+        category: "/language:${{matrix.language}}"

.github/workflows/node.js.yml

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+# Testing pipeline2
+
+name: Node.ts CI
+
+on:
+  push:
+    branches: ["main"]
+  pull_request:
+    branches: ["*"]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [20.x]
+
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.ref }}
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+          cache: "npm"
+
+      - name: Install packages
+        run: npm install
+
+      # - name: API test
+      #   run: npm run test
+
+      - name: Eslint test API
+        run: npm run lint
+
+      # - name: Eslint test client
+      #   run: cd client && npm run lint-client

.gitignore

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+# dependencies
+/node_modules
+
+# files
+/public
+/.nyc_output
+/.vscode
+/dist
+
+# dotenv environment variables file
+.env
+.env.test

.mocharc.json

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+{
+  "reporter": "spec",
+  "spec": "src/**/*.test.ts",
+  "require": "ts-node/register",
+  "loader": "ts-node/esm",
+  "node-option": [
+    "experimental-specifier-resolution=node",
+    "loader=ts-node/esm"
+  ],
+  "exit": true
+}

.prettierrc

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+{
+  "endOfLine": "lf"
+}

LICENSE.md

@@ -0,0 +1,19 @@
+Copyright (c) 2011-2024 GitHub Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION

README.md

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+# Project
+
+The portfolio project to improve my web development skills.
+Project is focus on Typescript technology which is uses with node in backend site of the web application.
+
+## Installation
+
+Use the npm packages, however project will not start without .env files.
+
+```bash
+npm install
+```
+
+## Available Scripts
+
+```bash
+npm start
+```
+
+Runs the app on [http://localhost:8000](http://localhost:8000) and connect to database (`MySQL`).
+Result of the working application we can see in the console.
+
+```bash
+npm run test
+```
+
+Runs API test cases to verify that our request works correctly.
+
+```bash
+npm run lint
+```
+
+Runs Eslint tests.
+Configuration is available in file `.eslintrc`.
+
+## Contributing
+
+Feel free to review the code.
+
+## License
+
+[MIT](https://choosealicense.com/licenses/mit/)

config/db.js

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+const mysql = require("mysql2");
+const dotenv = require("dotenv");
+
+dotenv.config({ path: "./.env" });
+
+const db_port = process.env.DB_PORT ? parseInt(process.env.DB_PORT, 10) : 3306;
+
+const pool = mysql.createPool({
+  host: process.env.DB_HOST,
+  user: process.env.DB_USER,
+  database: process.env.DB_NAME,
+  password: process.env.DB_PASSWORD,
+  port: db_port,
+});
+
+(async () => {
+  try {
+    const connection = await pool.promise().getConnection();
+    console.log("Connected to the database successfully!");
+    connection.release();
+  } catch (error) {
+    console.error("Failed to connect to the database:", error);
+  }
+})();
+
+module.exports.pool;