How do I install the Implementing Flutter Social Auth skill?

Run npx skillmds@latest add aibot88/implementing-flutter-social-auth in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

Is Implementing Flutter Social Auth safe to use?

This skill has not completed SkillMD's automated safety review yet. Independent scanners report: SkillSpector: PASS, Skill Scanner: PASS. Capability flags: reads secrets. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Implementing Flutter Social Auth?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Implementing Flutter Social Auth free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Implementing Flutter Social Auth?

aibot88 (@aibot88) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Implementing Flutter Social Auth by aibot88

Name: Implementing Flutter Social Auth
Rating: 4.2 (5 reviews)
Author: aibot88

Implementing Flutter Social Auth

Social authentication and OAuth/SSO for Flutter supporting Google Sign-In, Apple Sign-In, Facebook Login, and LINE Login. Use when implementing social login, OAuth flows, sign-in with Google/Apple/Facebook/LINE, SSO integration, third-party authentication, platform credential configuration (SHA-1 fingerprint for Android, Service ID for Apple, App ID for Facebook, Channel ID for LINE), native auth flows, minimal viable examples, error handling patterns, or troubleshooting authentication failures, token handling, and sign-in errors (ApiException, PlatformException).

aibot88 Updated Sep 9, 2026 3 repo stars

File contents

Flutter Social Authentication Guide

Goal

Implement secure, high-quality social authentication in Flutter applications across iOS, Android, and Web. This skill focuses on the most common identity providers (Google, Facebook, Apple) using best-practice plugins and native configuration strategies to ensure a seamless "Privacy-First" user experience.

Process

Phase 1: Provider Selection & Requirements

Identify the required social providers and gather necessary developer portal credentials.

Google: Google Cloud Console / Firebase Console (SHA-1 fingerprint required for Android).
Facebook: Meta for Developers (App ID, Client Token).
Apple: Apple Developer Program (Service ID, Team ID, Key ID).
LINE: LINE Developers Console (Channel ID).

Phase 2: Platform-Specific Configuration

Each provider requires specific configurations in AndroidManifest.xml, Info.plist, or web/index.html.

Phase 3: Implementation & State Management

Integrate the authentication flow with the app's state management (e.g., Riverpod 3.0 Notifiers).

Initialize: Call the respective plugin init or configuration methods.
Authenticate: Trigger the login flow and capture the AccessToken or IdToken.
Handle Persistence: Store credentials securely using flutter_secure_storage.
Error Handling: Implement retry logic and display user-friendly error messages (e.g., ApiException 10 for Google).

📚 Documentation Library

Refer to these specialized resources for each identity provider:

Constraints

Native Overlays: Always call WidgetsFlutterBinding.ensureInitialized() before initializing auth plugins in main().
Security Awareness: NEVER store raw AccessTokens in SharedPreferences. Use Secure Storage (encrypted).
Privacy Compliance: Ensure Apple Sign-In is implemented if any other 3rd party social login is offered on iOS.
Error Resilience: Always handle the cancel state gracefully when a user closes the auth popup.

---name: implementing-flutter-social-authdescription: Social authentication and OAuth/SSO for Flutter supporting Google Sign-In, Apple Sign-In, Facebook Login, and LINE Login. Use when implementing social login, OAuth flows, sign-in with Google/Apple/Facebook/LINE, SSO integration, third-party authentication, platform credential configuration (SHA-1 fingerprint for Android, Service ID for Apple, App ID for Facebook, Channel ID for LINE), native auth flows, minimal viable examples, error handling patterns, or troubleshooting authentication failures, token handling, and sign-in errors (ApiException, PlatformException).--- # Flutter Social Authentication Guide ## Goal Implement secure, high-quality social authentication in Flutter applications across iOS, Android, and Web. This skill focuses on the most common identity providers (Google, Facebook, Apple) using best-practice plugins and native configuration strategies to ensure a seamless "Privacy-First" user experience. ## Process ### Phase 1: Provider Selection & Requirements Identify the required social providers and gather necessary developer portal credentials. - **Google**: Google Cloud Console / Firebase Console (SHA-1 fingerprint required for Android). - **Facebook**: Meta for Developers (App ID, Client Token). - **Apple**: Apple Developer Program (Service ID, Team ID, Key ID). - **LINE**: LINE Developers Console (Channel ID). ### Phase 2: Platform-Specific Configuration Each provider requires specific configurations in `AndroidManifest.xml`, `Info.plist`, or `web/index.html`. - [Google Sign-In Setup](./references/google-sign-in.md) - [Facebook Login Setup](./references/facebook-login.md) - [Apple Sign-In Setup](./references/apple-sign-in.md) - [LINE Login Setup](./references/line-login.md) ### Phase 3: Implementation & State Management Integrate the authentication flow with the app's state management (e.g., Riverpod 3.0 Notifiers). 1. **Initialize**: Call the respective plugin `init` or configuration methods. 2. **Authenticate**: Trigger the login flow and capture the `AccessToken` or `IdToken`. 3. **Handle Persistence**: Store credentials securely using `flutter_secure_storage`. 4. **Error Handling**: Implement retry logic and display user-friendly error messages (e.g., ApiException 10 for Google). --- ## 📚 Documentation Library Refer to these specialized resources for each identity provider: - [🎯 Google Sign-In Best Practices](./references/google-sign-in.md) - [👤 Facebook Login Best Practices](./references/facebook-login.md) - [🍎 Apple Sign-In Best Practices](./references/apple-sign-in.md) - [💬 LINE Login Best Practices](./references/line-login.md) ## Constraints * **Native Overlays**: Always call `WidgetsFlutterBinding.ensureInitialized()` before initializing auth plugins in `main()`. * **Security Awareness**: NEVER store raw AccessTokens in `SharedPreferences`. Use `Secure Storage` (encrypted). * **Privacy Compliance**: Ensure Apple Sign-In is implemented if any other 3rd party social login is offered on iOS. * **Error Resilience**: Always handle the `cancel` state gracefully when a user closes the auth popup.

Frequently asked questions