init auth

pages/api/auth/[...nextauth].ts

@@ -0,0 +1,25 @@
+import NextAuth from "next-auth/next";
+import TwitchProvider from "next-auth/providers/twitch";
+import {
+  MongoDBAdapter,
+  MongoDBAdapterOptions,
+} from "@next-auth/mongodb-adapter";
+import clientPromise from "../../../lib/mongodb";
+
+export const dbOptions: MongoDBAdapterOptions = {
+  collections: {
+    Users: "web_users",
+    Accounts: "web_accounts",
+    Sessions: "web_sessions",
+  },
+};
+
+export default NextAuth({
+  adapter: MongoDBAdapter(clientPromise, dbOptions),
+  providers: [
+    TwitchProvider({
+      clientId: process.env.TWITCH_CLIENT_ID ?? "",
+      clientSecret: process.env.TWITCH_SECRET ?? "",
+    }),
+  ],
+});