signup and loginbasics

apps/web/pages/api/auth/signup.ts

@@ -0,0 +1,58 @@
+import { IdentityProvider } from "@prisma/client";
+import { NextApiRequest, NextApiResponse } from "next";
+
+import prisma from "@documenso/prisma";
+import { hashPassword } from "@documenso/lib/auth";
+import { defaultHandler, defaultResponder } from "@documenso/lib/server";
+
+async function postHandler(req: NextApiRequest, res: NextApiResponse) {
+  const data = req.body;
+  const { email, password } = data;
+  const cleanEmail = email.toLowerCase();
+
+  if (!cleanEmail || !cleanEmail.includes("@")) {
+    res.status(422).json({ message: "Invalid email" });
+    return;
+  }
+
+  if (!password || password.trim().length < 7) {
+    res.status(422).json({
+      message: "Invalid input - password should be at least 7 characters long.",
+    });
+    return;
+  }
+
+  // User already exists if email already exists
+  const existingUser = await prisma.user.findFirst({
+    where: {
+      email: cleanEmail,
+    },
+  });
+
+  if (existingUser) {
+    const message: string = "Email address is already registered";
+    return res.status(409).json({ message });
+  }
+
+  const hashedPassword = await hashPassword(password);
+
+  const user = await prisma.user.upsert({
+    where: { email: cleanEmail },
+    update: {
+      password: hashedPassword,
+      emailVerified: new Date(Date.now()),
+      identityProvider: IdentityProvider.DOCUMENSO,
+    },
+    create: {
+      email: cleanEmail,
+      password: hashedPassword,
+      identityProvider: IdentityProvider.DOCUMENSO,
+    },
+  });
+
+  res.status(201).json({ message: "Created user" });
+}
+
+export default defaultHandler({
+  POST: Promise.resolve({ default: defaultResponder(postHandler) }),
+});