initial commit

backend/.gitignore

@@ -0,0 +1 @@
+node_modules

backend/db.js

@@ -0,0 +1,10 @@
+const knex = require('knex');
+const knexConfig = require('./knexfile.js');
+
+const environment = process.env.NODE_ENV || 'development';
+const config = knexConfig[environment];
+
+const db = knex(config);
+
+module.exports = db;
+

backend/knexfile.js

@@ -0,0 +1,40 @@
+require('dotenv').config();
+
+module.exports = {
+
+  development: {
+    client: 'postgresql',
+    connection: {
+      host: process.env.DB_HOST,
+      port: process.env.DB_PORT,
+      database: process.env.DB_NAME,
+      user: process.env.DB_USER,
+      password: process.env.DB_PASSWORD
+    },
+    pool: {
+      min: 2,
+      max: 10
+    },
+    migrations: {
+      tableName: 'knex_migrations',
+      directory: './migrations'
+    }
+  },
+
+  production: {
+    client: 'postgresql',
+    connection: {
+      database: 'my_db',
+      user: 'username',
+      password: 'password'
+    },
+    pool: {
+      min: 2,
+      max: 10
+    },
+    migrations: {
+      tableName: 'knex_migrations'
+    }
+  }
+
+};

backend/migrations/20250702165756_create_recipes_table.js

@@ -0,0 +1,21 @@
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.up = function (knex) {
+  return knex.schema.createTable('recipes', function (table) {
+    table.increments('id').primary();
+    table.string('name').notNullable().unique();
+    table.string('cuisine').notNullable();
+    table.timestamps(true, true);
+  })
+
+};
+
+/**
+ * @param { import("knex").Knex } knex
+ * @returns { Promise<void> }
+ */
+exports.down = function (knex) {
+  return knex.schema.dropTable('users');
+};

backend/package.json

@@ -0,0 +1,20 @@
+{
+  "name": "backend",
+  "version": "1.0.0",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1",
+    "dev": "node server.js"
+  },
+  "keywords": [],
+  "author": "",
+  "license": "ISC",
+  "description": "",
+  "dependencies": {
+    "cors": "^2.8.5",
+    "dotenv": "^17.0.1",
+    "express": "^5.1.0",
+    "knex": "^3.1.0",
+    "pg": "^8.16.3"
+  }
+}

backend/server.js

@@ -0,0 +1,63 @@
+const express = require("express");
+const db = require("./db");
+const port = 6063;
+const cors = require('cors'); // to remove cors origin error in dev TODO: remove when dockerized
+
+const app = express();
+app.use(cors());  // to remove cors origin error in dev TODO: remove when dockerized
+app.use(express.json());
+
+// routes
+app.get("/recipes", async (req, res) => {
+  try {
+    const recipes = await db('recipes').select('id', 'name');
+    res.json(recipes);
+  } catch (err) {
+    console.log(err);
+    res.status(500).json({ error: err.message });
+  }
+});
+
+app.get("/recipe/:id", async (req, res) => {
+  const id = req.params.id
+  try {
+    const recipe = await db('recipes').where('id', '=', id).select('id', 'name', 'cuisine').first();
+    res.json(recipe);
+  } catch (err) {
+    console.log(err);
+    res.status(500).json({ error: err.message });
+  }
+});
+
+app.post("/add-recipe", async (req, res) => {
+  const { name, cuisine } = req.body;
+  try {
+    const [id] = await db('recipes').insert({
+      name: name,
+      cuisine: cuisine
+    }, ['id'])
+    res.status(200).send({ message: "Recipe added", id: id.id });
+  } catch (err) {
+    console.log(err);
+    res.status(500).json({ error: err.message });
+  }
+});
+
+app.delete("/delete-recipe", async (req, res) => {
+  const { id } = req.body;
+  try {
+    await db('recipes').where({ id: id }).del();
+    res.status(200).send({ message: "Recipe deleted" });
+  } catch (err) {
+    console.log(err);
+    res.status(500).json({ error: err.message });
+  }
+});
+
+app.listen(port, () => console.log(`Server has started on port: ${port}`));
+
+process.on('SIGINT', async () => {
+  console.log('Closing database connection...');
+  await db.destroy();
+  process.exit(0);
+});

backend/test.js

@@ -0,0 +1,14 @@
+const db = require('./db');
+
+async function testConnection() {
+  try {
+    await db.raw('SELECT 1+1 as result');
+    console.log('Database connected successfully!');
+  } catch (error) {
+    console.error('Database connection failed:', error);
+  } finally {
+    await db.destroy();
+  }
+}
+
+testConnection();