Scalable Flutter App: Supabase, Clean Architecture & BLoC

"Go beyond Flutter basics and leap forward as an expert who designs professional-level architectures."

Are you ready to move beyond simple counter apps or TODO list examples and solve complex problems encountered in real-world services? If you have experienced code becoming tangled as you add features, or the app becoming unstable with even a small modification, this course will be the answer.

This course goes beyond simply completing a single app; it teaches solid development methodologies for creating 'scalable and maintainable apps' that remain stable over time.

🏗️ In the AI era, why should we still learn architecture?

We are in an era where AI can write code in just a few seconds. If so, what should we as developers focus on?

• The power to see the whole, not just the pieces: AI is good at creating single functions or widgets. However, in large-scale projects where tens of thousands of lines of code are intertwined, deciding where each component should be located and how to reduce coupling remains the responsibility of human developers.

• A solid vessel for AI code: As the amount of AI-generated code increases, so does the risk of it becoming unmanageable 'spaghetti code.' Clean Architecture and Monorepos serve as solid vessels that help systematically organize and safely operate the code snippets created by AI.

• Irreplaceable Decision Maker: AI only suggests options; it cannot make the optimal technical judgments suited for specific business contexts. This course will evolve you from a mere 'coder' into an 'architect' who commands AI as a tool.

🛡️ Three Pillars Supporting the Course

By building the 'Community Board' app, which serves as a real-world stage, you will master the three core technologies that support large-scale projects.

1. Robust Architecture (Clean Architecture): Bring order to messy code. Design a structure that is easy to test and maintain by clearly separating concerns.

2. Modern Backend (Supabase): Drastically reduce backend development time by utilizing Supabase, which provides database, authentication, and real-time features without complex server setup.

3. Efficient State Management (BLoC & Event Bus): By combining BLoC, the standard state management for Flutter, with an Event Bus architecture that reduces coupling between objects, data across the entire app is elegantly synchronized.

   
   

   
   

   
   

🚀 Key Learning Content and Features

• Building a Practical Community App: Build all the essential features required for a real-world service from scratch, including authentication, post CRUD, real-time comments/likes, profile management, and responsive search.

• Monorepo Environment: Learn how to manage large-scale projects and maximize code reusability by separating features into independent package units.

• Advanced Streams and Real-time Control: Covers professional-level techniques such as real-time notifications using Supabase Realtime, and Debounce and switchMap for search optimization.

• The Essence of Architecture, Scalability: You will acquire design skills at a level where you can launch a new app by simply changing the state management tool while maintaining the current structure.

  
  

📅 Curriculum Roadmap (Learning Path)

1. Foundation: Mastering the VS Code environment to boost practical productivity and essential tools that reduce boilerplate

2. Architecture: Establishing Clean Architecture principles, such as separation of concerns and dependency rules

3. Infrastructure: Building a monorepo for scalability and designing the Supabase backend (SQL, RLS, Functions)

4. Development: Implementation of core features (Auth, Post, Search) using BLoC and Event Bus

5. Advanced: Advanced application of Supabase Realtime for real-time data detection and UI reflection

6. Next Level: Overall project retrospective and discussion on expansion strategies for other state management libraries

🎯 Recommended for these people

• Those who have built basic apps with Flutter but want to take on larger, more structured projects.

• Those who are curious about how to implement Clean Architecture used in practice through actual code

• Solo developers or startup developers who want to maximize backend development efficiency using Supabase

• Those who need a portfolio demonstrating 'scalable app design skills' for employment or career transitions.

📋 Please check before taking the course (Prerequisites)

• Flutter & Dart Basics: An understanding of basic widget usage and asynchronous programming (async/await) is required.

• State Management Experience: It is helpful if you have experience using any state management method such as Provider, Riverpod, or GetX. (The course is designed so that you can easily follow along even if BLoC is new to you.)

• Basic SQL Knowledge: It is recommended to know basic CRUD syntax for reading and writing data. Complex policies will be learned together during the course.

📂 Lecture materials and source code provided

• High-quality PDF slides: We provide PDF presentation materials including core theories and architecture diagrams for each section. (Download from the ‘Resources’ tab in each section)

• Final source code provided:

  
  Beginner Level: Completed code for productivity tools and core syntax (e.g., data_class) covered in Section 3 is provided.
  Main Project: The full monorepo structure and final implementation code for the community bulletin board app, starting from Chapter 4, are provided.

• Detailed information regarding source code links and usage instructions will be provided in the first lectures of Chapters 3 and 4.

You will understand the essence of 'why' it should be designed that way, going beyond simply 'how' to build it. Join this journey now to take your skills to the next level!