added get cols api

Signed-off-by: Tanmay Vaij <[email protected]>

src/controllers/getColumns.controller.ts

@@ -0,0 +1,49 @@
+import { Request, Response } from "express";
+import { db } from "../config/db";
+
+export const getTableColumnsController = (req: Request, res: Response) => {
+  const { tableName } = req.query;
+
+  // Validate input
+  if (!tableName || typeof tableName !== "string") {
+    res.status(400).json({
+      isSuccess: false,
+      message: "Table name is required and should be a string.",
+    });
+    return
+  }
+
+  // SQL query to retrieve columns
+  const query = `
+    SELECT COLUMN_NAME
+    FROM INFORMATION_SCHEMA.COLUMNS
+    WHERE TABLE_NAME = ?
+  `;
+
+  // Execute the query
+  db.query(query, [tableName], (err, results: any[]) => {
+    if (err) {
+      console.error("Error retrieving columns:", err);
+      return res.status(500).json({
+        isSuccess: false,
+        error: err.message,
+      });
+    }
+
+    // Check if the table exists
+    if (results.length === 0) {
+      return res.status(404).json({
+        isSuccess: false,
+        message: `Table '${tableName}' not found.`,
+      });
+    }
+
+    // Return the columns
+    const columns = results.map((row: any) => row.COLUMN_NAME);
+
+    return res.status(200).json({
+      isSuccess: true,
+      columns: columns,
+    });
+  });
+};

src/controllers/index.ts

@@ -4,3 +4,5 @@ export * from "./deleteTable.controller";
 
 export * from "./insertData.controller";
 export * from "./fetchData.controller";
+
+export * from "./getColumns.controller";

src/routers/admin.routes.ts

@@ -4,10 +4,12 @@ import {
   createTableController,
   deleteTableController,
   getAllTablesController,
+  getTableColumnsController,
 } from "../controllers";
 
 export const adminRouter = Router();
 
 adminRouter.route("/create-table").post(createTableController);
 adminRouter.route("/delete-table").delete(deleteTableController);
 adminRouter.route("/get-tables").get(getAllTablesController);
+adminRouter.route("/get-columns").get(getTableColumnsController);