Added grade route.ts

app/api/grade/route.ts

@@ -0,0 +1,27 @@
+import type { NextApiRequest, NextApiResponse } from 'next'
+
+import { PrismaClient } from '@prisma/client'
+
+const prisma = new PrismaClient()
+
+interface IBody {
+    key: string
+    grade: number
+}
+
+export default async function handler(req: NextApiRequest, res: NextApiResponse) {
+    const body = req.body as IBody
+    if (req.method === 'POST') {
+        // Process a POST request
+        await prisma.grade.findFirst({where: {key: body.key}}).then(async (grade) => {
+            if (grade) {
+                await prisma.grade.create({data: {test: 1, grade: body.grade, key: body.key}})
+                res.status(200).json({message: 'Grade updated'})
+            } else {
+                res.status(404).json({message: 'Key not found'})
+            }
+        })
+    } else {
+        // Handle any other HTTP method
+    }
+}