[WIP]

Signed-off-by: Nikolay Martyanov <ohmspectator@gmail.com>

backend/.gitignore

@@ -1,4 +1,6 @@
 # Gitignore for NodeJS project
 
 node_modules
-package-lock.json
+package-lock.json
+
+*.log

backend/config/database.js

@@ -0,0 +1,14 @@
+require('dotenv').config();
+
+const dbName = process.env.DB_NAME;
+const dbUser = process.env.DB_USER;
+const dbPassword = process.env.DB_PASSWORD;
+
+const { Sequelize } = require('sequelize');
+
+const sequelize = new Sequelize(dbName, dbUser, dbPassword, {
+    host: 'localhost',
+    dialect: 'postgres',
+});
+
+module.exports = sequelize;

backend/package.json

@@ -2,10 +2,22 @@
   "name": "track-your-regions-backend",
   "version": "1.0.0",
   "description": "Backend for Track Your Regions",
+  "dependencies": {
+    "dotenv": "^16.3.1",
+    "express": "^4.18.2",
+    "pg": "^8.11.3",
+    "sequelize": "^6.33.0"
+  },
   "devDependencies": {
-    "sequelize-auto": "^0.8.8"
+    "jest": "^27.0.6",
+    "nodemon": "^2.0.22",
+    "sequelize-auto": "^0.8.8",
+    "supertest": "^6.1.6"
   },
   "scripts": {
+    "start": "node src/app.js",
+    "dev": "nodemon src/app.js",
+    "test": "jest",
     "generate-models": "./scripts/generate-models.sh"
   }
 }

backend/scripts/generate-models.sh

@@ -1,21 +1,19 @@
 #!/usr/bin/env bash
 
-# Check if .env file exists
-if [ ! -f .env ]; then
-  echo "Please create .env file in the root directory"
-  exit 1
-fi
+OUTPUT_DIR="./src/models/generated"
 
-# Load environment variables
-source .env
+# Create output directory if it doesn't exist
+if [ ! -d "$OUTPUT_DIR" ]; then
+  mkdir -p "$OUTPUT_DIR"
+fi
 
-# Check the required environment variables
-REQUIRED_VARIABLES=(DB_NAME DB_USER DB_PASSWORD)
-for VARIABLE in "${REQUIRED_VARIABLES[@]}"; do
-  if [ -z "${!VARIABLE}" ]; then
-    echo "Please set $VARIABLE in .env file"
-    exit 1
-  fi
-done
+sequelize-auto -o "$OUTPUT_DIR" --schema gadm > model-generation.log
 
-sequelize-auto -o './src/models' -d "$DB_NAME" -h localhost -u "$DB_USER" -x "$DB_PASSWORD" -p 5432 -e postgres --schema gadm
+#Check if the generation was successful
+if [ $? -eq 0 ]; then
+  echo "Models generated successfully"
+  rm model-generation.log
+else
+  echo "Models generation failed"
+  exit 1
+fi

backend/src/app.js

@@ -0,0 +1,16 @@
+const express = require('express');
+const routes = require('./routes');
+const sequelize = require('../config/database');
+
+const app = express();
+
+app.use(express.json());
+app.use('/', routes);
+
+const PORT = 3000;
+
+sequelize.sync().then(() => {
+    app.listen(PORT, () => {
+        console.log(`Server is running on port ${PORT}`);
+    });
+});

backend/src/controllers/regionController.js

@@ -0,0 +1,12 @@
+const Region = require('../models/region');
+
+exports.getRegionById = async (req, res) => {
+    const { regionId } = req.params;
+    try {
+        const region = await Region.findByPk(regionId);
+        if (!region) return res.status(404).send('Region not found');
+        res.json(region);
+    } catch (err) {
+        res.status(500).send(err.message);
+    }
+};

backend/src/models/region.js

@@ -0,0 +1,27 @@
+const { DataTypes } = require('sequelize');
+const sequelize = require('../../config/database');
+
+const Region = sequelize.define('Region', {
+    id: {
+        type: DataTypes.INTEGER,
+        primaryKey: true,
+        autoIncrement: true,
+    },
+    name: {
+        type: DataTypes.STRING,
+        allowNull: false,
+    },
+    parentRegionId: {
+        type: DataTypes.INTEGER,
+        references: {
+            model: 'Region',
+            key: 'id',
+        },
+    },
+    hasSubregions: {
+        type: DataTypes.BOOLEAN,
+        allowNull: false,
+    },
+});
+
+module.exports = Region;

backend/src/routes/index.js

@@ -0,0 +1,9 @@
+const express = require('express');
+
+const regionRoutes = require('./regionRoutes');
+
+const router = express.Router();
+
+router.use('/region', regionRoutes);
+
+module.exports = router;

backend/src/routes/regionRoutes.js

@@ -0,0 +1,8 @@
+const express = require('express');
+const regionController = require('../controllers/regionController');
+
+const router = express.Router();
+
+router.get('/:regionId', regionController.getRegionById);
+
+module.exports = router;