How to do something on register (sign up) in NextAuth?!

aspireone · 2023-04-14T07:26:02.807Z

There's only signIn callback, and I haven't found a way to check if the user is signing in for the first time. I want to send a "thank you for registering" email. How do I do it?

C

cje•4/14/23, 7:28 AM

add a database field (or separate table) and check for that

J

jdsl•4/14/23, 7:29 AM

There is a variable for the jwt callback called

isNewUser

isNewUser

isNewUser

isNewUser that might work:
https://next-auth.js.org/configuration/callbacks#jwt-callback

Callbacks | NextAuth.js

Callbacks are asynchronous functions you can use to control what happens when an action is performed.

J

jdsl•4/14/23, 7:31 AM

The answer cje provided is probably the full-proof way

The contents user, account, profile and isNewUser will vary depending on the provider and if you are using a database.

The contents user, account, profile and isNewUser will vary depending on the provider and if you are using a database.

The contents user, account, profile and isNewUser will vary depending on the provider and if you are using a database.

The contents user, account, profile and isNewUser will vary depending on the provider and if you are using a database.

Ccje add a database field (or separate table) and check for that

A

aspireoneOP•4/14/23, 7:32 AM

I have nowhere to add it if I cannot do something on register

A

aspireoneOP•4/14/23, 7:32 AM

right?

A

aspireoneOP•4/14/23, 7:32 AM

Il'l try doing it through JWT as joerambo suggested

Aaspireone I have nowhere to add it if I cannot do something on register

C

cje•4/14/23, 7:45 AM

signIn() {
  const userDoneRegistering = something();
  if (!userDoneRegistering) {
    doUserRegistrationStuff();
  }
}

doUserRegistrationStuff() {
  doStuff();
  setUserDoneRegistering();
}

signIn() {
  const userDoneRegistering = something();
  if (!userDoneRegistering) {
    doUserRegistrationStuff();
  }
}

doUserRegistrationStuff() {
  doStuff();
  setUserDoneRegistering();
}

signIn() {
  const userDoneRegistering = something();
  if (!userDoneRegistering) {
    doUserRegistrationStuff();
  }
}

doUserRegistrationStuff() {
  doStuff();
  setUserDoneRegistering();
}

signIn() {
  const userDoneRegistering = something();
  if (!userDoneRegistering) {
    doUserRegistrationStuff();
  }
}

doUserRegistrationStuff() {
  doStuff();
  setUserDoneRegistering();
}

A

aspireoneOP•4/14/23, 7:48 AM

Where would that flag be stored according to you

A

aspireoneOP•4/14/23, 8:58 AM

Well, the JWT way works. The isNewUser field is not set for signin using CredentialsProvider, but I'm alright with that.

Thank you both for helping me, appreciate it.

How to do something on register (sign up) in NextAuth?!

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