Discord OAuth, Prisma and MongoDB

[booleans-oss]

Question 💬

I am currently discovering next-auth and tried to set up Discord OAuth2 with a MongoDB database and Prisma adapter. As mentioned in the doc, there are quite a few changes that need to be done for MongoDB to work with next-auth. However, it seems that the Discord provider has conflicts with these changes:

• id String @id @default(auto()) @map("_id") @db.ObjectId -> Since change is required. However, it overwrites the ID given by the OAuth2 after a successful signIn.
  -userId String @id @default(auto()) @map("id") @db.String -> I tried using 2 different fields but the Discord OAuth2 returns null/undefined for the ID (when it should never be null/undefined since every Discord's users has an ID)

So I quickly ran out of ideas to solve this problem.

How to reproduce ☕️

• Install next-auth, next.js, prisma
• Set up Discord OAuth 2 to work with Prisma connected to a mongoDB (https://next-auth.js.org/adapters/prisma#mongodb)
• See that we don't have access to a user's ID, and we cannot fetch it

Contributing 🙌🏽

Yes, I am willing to help answer this question in a PR