Add transaction section to admin dashboard

backend/controllers/transaction.js

@@ -0,0 +1,40 @@
+const db = require("../utils/database");
+
+exports.getTransactionWithPagination = async (req, res) => {
+  const limit = +req.query?.limit;
+  const page = +req.query?.page;
+  const offset = (page - 1) * limit;
+  try {
+    const [data, _] = await db.execute(
+      `SELECT T.TransactionID, DATE_FORMAT(T.Date, '%b-%d-%Y %h:%i %p') as Date, T.PaymentStatus, U.Name as UserName, P.Name as ProductName 
+			      FROM Transaction T
+			      LEFT JOIN User U ON T.UserID = U.UserID
+            LEFT JOIN Product P ON T.ProductID = P.ProductID
+            ORDER BY T.TransactionID ASC LIMIT ? OFFSET ?`,
+      [limit.toString(), offset.toString()]
+    );
+
+    const [result] = await db.execute(
+      "SELECT COUNT(*) AS count FROM Transaction"
+    );
+    const { count: total } = result[0];
+    return res.json({ data, total });
+  } catch (error) {
+    res.json({ error: "Cannot fetch transactions from database!" });
+  }
+};
+
+exports.removeTransation = async (req, res) => {
+  const { id } = req.params;
+  try {
+    const [result] = await db.execute(
+      "DELETE FROM Transaction WHERE TransactionID = ?;",
+      [id.toString()]
+    );
+    return res.json({ message: "Remove transaction successfully!" });
+  } catch (error) {
+    return res
+      .status(500)
+      .json({ error: "Cannot remove transactions from database!" });
+  }
+};

backend/index.js

@@ -10,6 +10,7 @@ const recommendedRouter = require("./routes/recommendation");
 const history = require("./routes/history");
 const review = require("./routes/review");
 const categoryRouter = require("./routes/category");
+const transactionRouter = require("./routes/transaction");
 
 const { generateEmailTransporter } = require("./utils/mail");
 const {
@@ -44,6 +45,7 @@ app.use("/api/engine", recommendedRouter);
 app.use("/api/history", history);
 app.use("/api/review", review);
 app.use("/api/category", categoryRouter);
+app.use("/api/transaction", transactionRouter);
 
 // Set up a scheduler to run cleanup every hour
 clean_up_time = 30 * 60 * 1000;

backend/routes/transaction.js

@@ -0,0 +1,12 @@
+const express = require("express");
+const {
+  getTransactionWithPagination,
+  removeTransation,
+} = require("../controllers/transaction");
+
+const router = express.Router();
+
+router.get("/getTransactions", getTransactionWithPagination);
+router.delete("/:id", removeTransation);
+
+module.exports = router;