SvelteKit "User Management App" Docs - safeGetSession typescript error

[justinburrow]

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Build a User Management App with SvelteKit

Describe the problem

In the section related to adding types to 'app.d.ts' in order to correct typescript compiler errors, using what is provided will create another error in a different document:

// src/app.d.ts

import { SupabaseClient, Session } from '@supabase/supabase-js'

declare global {
  namespace App {
    interface Locals {
      supabase: SupabaseClient
      safeGetSession(): Promise<{ session: Session | null; user: User | null }>
    }
    interface PageData {
      session: Session | null
      user: User | null
    }
    // interface Error {}
    // interface Platform {}
  }
} 

Following the next steps, +layout.ts will have the compiler complaining because the returned objects will not have the user property that is specified in this type declaration for safeGetSession().

Describe the improvement

Mark the 'user' property with a question mark to indicate that it is an optional property in the return type.

    interface PageData {
      session: Session | null
      user?: User | null
    }

Additional context

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