London9-Boshra-Mahmoudi-Ecommerce-psql-week2

.gitignore

@@ -1,2 +1,5 @@
 
 E-Commerce-API/node_modules/
+# dotenv environment variables file
+.env
+.env.test

E-Commerce-API/app.js

@@ -1,8 +1,45 @@
+require('dotenv').config();
 const express = require("express");
 const app = express();
-// Your code to run the server should go here
-// Don't hardcode your DB password in the code or upload it to GitHub! Never ever do this ever.
-// Use environment variables instead:
-// https://www.codementor.io/@parthibakumarmurugesan/what-is-env-how-to-set-up-and-run-a-env-file-in-node-1pnyxw9yxj
 
-module.exports = app;
+const { Pool } = require("pg");
+
+const db = new Pool({
+  user: process.env.DB_USERNAME,
+  host: process.env.DB_HOST,
+  database: process.env.DB_DATABASE,
+  password: process.env.DB_PASSWORD,
+  port: process.env.DB_PORT,
+});
+
+app.get("/products", async (request, response) => {
+  try {
+    let productQuery = "SELECT p.product_name , pa.unit_price , s.supplier_name  FROM products p INNER JOIN product_availability pa on (p.id = pa.prod_id) INNER JOIN suppliers s on (pa.supp_id = s.id)"
+
+    if (request.query.name) {
+      productQuery += ` WHERE LOWER(product_name) LIKE '%${request.query.name.toLowerCase()}%'`;
+    }
+
+    const result = await db.query(
+      productQuery
+    );
+
+    const testequest = result.rows.map((row) => ({
+      name: row.product_name,
+      price: row.unit_price,
+      supplierName: row.supplier_name,
+    }))
+
+    return response.status(200).json(testequest);
+  }
+  catch (error) {
+    response.status(400).json({
+      "result": false,
+    })
+  };
+});
+
+const port = process.env.PORT || 3000;
+app.listen(port, () => console.log(`Listening on port ${port}`));
+
+module.exports = app;