serverpod-auth

Development

Serverpod Authentication — Signing in users, verify if they are authenticated, assinging scopes (e.g., admin). Use when adding features that require the user to be signed in.

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Serverpod Authentication

Serverpod has authentication built in. Pre-configured with email. Most social sign-ins supported (Apple, Google, GitHub, Facebook, Microsoft, etc) but need configuration.

Flutter app

Use SignInWidget. It provides its own Material surface, so it also renders correctly when mixed with non-Material design systems. Simplified example:

import 'package:serverpod_auth_idp_flutter/serverpod_auth_idp_flutter.dart';

class _SignInScreenState extends State<SignInScreen> {
  bool _isSignedIn = false;

  @override
  void initState() {
    super.initState();
    client.auth.authInfoListenable.addListener(_updateSignedInState);
    _isSignedIn = client.auth.isAuthenticated;
  }

  @override
  void dispose() {
    client.auth.authInfoListenable.removeListener(_updateSignedInState);
    super.dispose();
  }

  void _updateSignedInState() {
    setState(() {
      _isSignedIn = client.auth.isAuthenticated;
    });
  }

  @override
  Widget build(BuildContext context) {
    return _isSignedIn
        ? widget.child
        : Center(
            child: SignInWidget(
              client: client,
              onAuthenticated: () {
                _showSnackBar(message: 'User authenticated.');
              },
              onError: (error) {
                _showSnackBar(message: 'Authentication failed: $error');
              },
            ),
          );
  }
}

Check signed-in state: _isSignedIn = client.auth.isAuthenticated; Sign out: client.auth.signOutAllDevices() or client.auth.signOutDevice() Get user profile (email, full name, etc): final userProfile = await client.modules.serverpod_auth_core.userProfileInfo.get()

Server-side

Require the user to be signed in or have a specific scope

class MyEndpoint extends Endpoint {
  // Require the user to be signed in to access methods in this endpoint.
  @override
  bool get requireLogin => true;

  // Require the user to have the admin scope.
  @override
  Set<Scope> get requiredScopes => {Scope.admin};

  // This method can only be accessed if the user is admin.
  Future<void> myMethod(Session session) async {
    ...
  }
  ...
}

User id and info

import 'package:serverpod_auth_idp_server/serverpod_auth_idp_server.dart';

// Get authenticated user's ID.
final userIdUuidValue = session.authenticated?.authUserId;

// Get the user profile (full name, email, etc)
var userProfile = await session.authenticated?.userProfile(session);

// Find a user profile by email.
final profiles = await AuthServices.instance.userProfiles.admin
    .listUserProfiles(
      session,
      email: email.toLowerCase(),
      limit: 1,
    );
final userProfile = profiles.firstOrNull;

// Get authentication info for user id (for editing scopes, etc).
final authUsers = AuthServices.instance.authUsers;
final authUser = await authUsers.get(
  session,
  authUserId: userProfile.authUserId,
);

Attaching additional info to a user

Create a model:

class: MyDomainData
table: my_domain_data
fields:
  ### The [AuthUser] this profile belongs to
  authUser: module:serverpod_auth_core:AuthUser?, relation(onDelete=Cascade)
  additionalInfo: String

indexes:
  auth_user_id_unique_idx:
    fields: authUserId
    unique: true

Find the info:

final authUserId = session.authenticated?.authUserId;
final additionalInfo = await MyDomainData.db.findFirstRow(
    session,
    where: (t) => t.authUserId.equals(authUserId!),
);

Managing scopes

import 'package:serverpod_auth_idp_server/core.dart';

// Update a user's scope.
await AuthServices.instance.authUsers.update(
  session,
  authUserId: authUserId,
  scopes: {Scope.admin},
);

// Use custom scope.
class CustomScope extends Scope {
  const CustomScope(String name) : super(name);

  static const userRead = CustomScope('userRead');
  static const userWrite = CustomScope('userWrite');
}

Enable editing user profile (from the client)

import 'package:serverpod/serverpod.dart';
import 'package:serverpod_auth_idp_server/core.dart';

class UserProfileEditEndpoint extends UserProfileEditBaseEndpoint {}

Social sign-ins

Requires set up by the user to configure (e.g., GCP console or Apple developer portal). Use official docs as reference. Supported: