Added user authentication.

pages/api/auth/register.ts

@@ -0,0 +1,56 @@
+import { prisma } from "@/lib/db";
+import type { NextApiRequest, NextApiResponse } from "next";
+import bcrypt from "bcrypt";
+
+interface Data {
+  message: string | object;
+}
+
+interface User {
+  name: string;
+  email: string;
+  password: string;
+}
+
+export default async function handler(
+  req: NextApiRequest,
+  res: NextApiResponse<Data>
+) {
+  const body: User = req.body;
+
+  const checkIfUserExists = await prisma.user.findFirst({
+    where: {
+      email: body.email,
+    },
+  });
+
+  if (!checkIfUserExists) {
+    const saltRounds = 10;
+
+    const hashedPassword = bcrypt.hashSync(body.password, saltRounds);
+
+    await prisma.user.create({
+      data: {
+        name: body.name,
+        email: body.email,
+        password: hashedPassword,
+        collections: {
+          create: [
+            {
+              role: "owner",
+              collection: {
+                create: {
+                  name: "First Collection",
+                },
+              },
+            },
+          ],
+        },
+      },
+    });
+
+    res.status(201).json({ message: "User successfully created." });
+  } else {
+    res.status(400).json({ message: "User already exists." });
+  }
+}