From 76f2fd7b7e94ea60ae08afcf71a53177f992f5aa Mon Sep 17 00:00:00 2001
From: Mann Patel <130435633+MannPatel0@users.noreply.github.com>
Date: Tue, 11 Mar 2025 16:44:25 -0600
Subject: [PATCH] Backend user query

made express func to create user, read user table with url,
---
 backend/index.js          | 56 ++++++++++++++++++++++++++++++++++-----
 backend/recommondation.go |  2 --
 2 files changed, 49 insertions(+), 9 deletions(-)

diff --git a/backend/index.js b/backend/index.js
index d70dfc0..e3c0bca 100644
--- a/backend/index.js
+++ b/backend/index.js
@@ -1,16 +1,58 @@
 import express, { json } from "express";
 import cors from "cors";
-const app = express();
+import mysql from "mysql2";
 
+const app = express();
 app.use(cors());
 app.use(json());
 
-// sample route
-app.get("/api/test", (req, res) => {
-  res.json({ message: "Hello from server!" });
+//TODO: Connect with the database:
+const db_con = mysql.createConnection({
+  host: "localhost",
+  user: "root",
+  password: "12345678",
+  database: "marketplace",
+  enableKeepAlive: true, // false by default.
 });
 
-app.listen(3030, () => {
-  console.log("\tRunning Backend:");
-  console.log("\x1b[36m \tLocal:\thttp://localhost:3030/ \x1b[0m");
+db_con.connect((err) => {
+  if (err) {
+    console.error("Database connection failed: " + err.stack);
+    return;
+  }
+  console.log("Connected to MySQL database.");
+});
+
+//TODO: Create a users:
+app.post("/create_users", (req, res) => {
+  const data = req.body;
+  db_con.query(
+    `INSERT INTO Users (Name, Email, UCID, Password, Phone, Address)
+    VALUES ('${data.name}', '${data.email}', '${data.UCID}', '${data.password}', '${data.phone}', '${data.address}');`,
+  );
+  db_con.query(
+    `INSERT INTO UserRole (Role)
+    VALUES ('${data.role}');`,
+  );
+  console.log(data);
+  res.send();
+});
+
+//TODO: Fetch all users data:
+app.get("/fetch_all_users", (req, res) => {
+  db_con.query("SELECT * FROM Users;", (err, data) => {
+    if (err) {
+      console.error("Errors: ", err);
+      return res.status(500).json({ error: "\nCould not fetch users!" });
+    }
+    res.json({ Users: data });
+  });
+});
+
+//TODO: Fetch One user Data:
+//TODO: Update A uses Data:
+//TODO: Delete A uses Data:
+
+app.listen(3030, () => {
+  console.log("Running Backend on http://localhost:3030/");
 });
diff --git a/backend/recommondation.go b/backend/recommondation.go
index f87cb26..3a82edb 100644
--- a/backend/recommondation.go
+++ b/backend/recommondation.go
@@ -41,5 +41,3 @@ func main() {
 		fmt.Printf("Similarity with product %d: %f\n", i, sim)
 	}
 }
-
-