todo

Todo application written in cpp, using AI agents as much as possible.

// README.md

C++ Todo App with Frontend and Docker Support

This is a full-stack todo application built with a C++ backend using the Crow framework, a React-based frontend, and orchestrated with Docker Compose.

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🧩 Project Structure

project-root/
├── backend/               # C++ backend server with Crow
├── frontend/              # React frontend client
├── database/              # SQL initialization script (optional)
├── docker-compose.yml     # Service orchestration
├── Dockerfile.backend     # Backend container
├── Dockerfile.frontend    # Frontend container
├── .conan/                # Conan config
├── README.md              # This file

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🚀 Getting Started

Prerequisites

• Docker & Docker Compose
• Node.js (for local frontend testing)
• Conan (v2.x preferred): pip install conan

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🐳 Running with Docker Compose

docker-compose up --build

• Frontend: http://localhost:3000
• Backend API: http://localhost:18080/tasks

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⚙️ Building Locally

Backend (C++)

cd backend
conan profile detect --force
conan install . -s build_type=Release --build=missing -of=build/Release
cd build/Release
cmake ../.. -DCMAKE_TOOLCHAIN_FILE=generators/conan_toolchain.cmake -DCMAKE_BUILD_TYPE=Release
cmake --build .
./todo_backend

Frontend (React)

cd frontend
npm install
npm start

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🛠 Dockerfile Notes

The backend Dockerfile uses ubuntu:22.04, installs required build tools and Conan, then performs the same Conan + CMake steps as local.

conan install backend -s build_type=Release --build=missing -of=build/Release
cmake -S backend -DCMAKE_TOOLCHAIN_FILE=build/Release/generators/conan_toolchain.cmake -DCMAKE_BUILD_TYPE=Release -B build/Release
cmake --build build/Release

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📦 Conan Requirements

backend/conanfile.py

from conan import ConanFile

class TodoBackend(ConanFile):
    name = "todo-backend"
    version = "1.0"
    requires = (
        "crowcpp-crow/1.2.0",
        "nlohmann_json/3.11.2",
        "asio/1.29.0"
    )
    generators = "CMakeToolchain", "CMakeDeps"

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🧪 API Usage

• GET /tasks — list tasks
• POST /tasks — add new task (JSON: { title, description })
• PUT /tasks/:id — update task
• DELETE /tasks/:id — delete task

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🎨 Frontend Highlights

• React UI with retro gaming look
• Add/edit/delete task functionality
• Axios used for HTTP requests
• Built for portability inside Docker

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🙌 Contributing

1. Fork the repo
2. Create a new branch
3. Submit a PR with meaningful commit messages

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🧰 Troubleshooting

• Docker pull access denied: The old conanio/gcc12 image is deprecated. We now use ubuntu:22.04.
• Frontend error tasks is null: Fixed via defensive checks and default to empty array.
• SSL issues with Conan: Use conan remote update --insecure conancenter.

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Let me know if you want to deploy this to a free hosting provider like Railway or Fly.io!