fix(ts): adjust properties on default interfaces

[balazsorban44]

What:

Adjusting the JWT and Session interfaces

Why:

Here is the shape of the default JWT payload:

next-auth/src/server/routes/callback.js

Lines 86 to 91 in cb1e5a7

	const defaultJwtPayload = {
	name: user.name,
	email: user.email,
	picture: user.image,
	sub: user.id?.toString()
	}

Here is the default Session payload:

next-auth/src/server/routes/session.js

Lines 32 to 39 in cb1e5a7

	const defaultSessionPayload = {
	user: {
	name: decodedJwt.name || null,
	email: decodedJwt.email || null,
	image: decodedJwt.picture || null
	},
	expires: sessionExpires
	}

We should make it possible for users to make their own assumptions about the default properties. Currently, because of how type augmentation works, even if you made for example the user field required, it would have been shown as optional, because our default said it was optional. By extracting the default session and JWT interfaces, the user will have full control of those interfaces

How:

Checklist:

• Documentation
• Tests
• Ready to be merged
  

Thanks to @kripod for the heads-up!

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[github-actions]

🎉 This PR is included in version 3.15.7 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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[kripod]

I think that the Session and JWT interfaces shouldn’t extend Default{Session,JWT} as that nullifies the point of this change, unfortunately.

[balazsorban44]

So here is how it looks like for me, when I override Session (in the middle)

[kripod]

That worked like charm, thank you! 🙌

[github-actions]

🎉 This PR is included in version 4.0.0-next.5 🎉

The release is available on:

• npm package (@next dist-tag)
• GitHub release

Your semantic-release bot 📦🚀