feat(auth): setup nextauth, register with credentials

.env.example

@@ -1 +1,2 @@
-DATABASE_URL="mongodb+srv://<username>:<password>@cluster0.<cluster_id>.mongodb.net/<db_env>"
+DATABASE_URL="mongodb+srv://<username>:<password>@cluster0.<cluster_id>.mongodb.net/<db_env>"
+NEXTAUTH_SECRET=

README.md

@@ -7,6 +7,7 @@
 - Zustand
 - React-hook-form
 - Prisma
+- Next/auth
 
 ## Installation
 ```

app/api/register/route.ts

@@ -0,0 +1,21 @@
+import { NextResponse } from "next/server";
+import bcrypt from "bcrypt";
+
+import prisma from "@/app/libs/prismadb";
+
+export async function POST(request: Request) {
+	const body = await request.json();
+	const { email, name, password } = body;
+
+	const hashedPassword = await bcrypt.hash(password, 12);
+
+	const user = await prisma.user.create({
+		data: {
+			email,
+			name,
+			hashedPassword,
+		},
+	});
+
+	return NextResponse.json(user);
+}

app/libs/prismadb.ts

@@ -0,0 +1,13 @@
+import { PrismaClient } from "@prisma/client";
+
+declare global {
+	var prisma: PrismaClient | undefined;
+}
+
+const client = globalThis.prisma || new PrismaClient();
+
+if (process.env.NODE_ENV !== "production") {
+	globalThis.prisma = client;
+}
+
+export default client;