Add Hello World FastAPI application with health endpoint

generated with BackendIM... (backend.im)

README.md

@@ -1,3 +1,45 @@
-# FastAPI Application
+# Hello World FastAPI Application
 
-This is a FastAPI application bootstrapped by BackendIM, the AI-powered backend generation platform.
+This is a simple Hello World API built with FastAPI and SQLite.
+
+## Features
+
+- Simple Hello World endpoint at `/`
+- Health check endpoint at `/health`
+- API documentation at `/docs` and `/redoc`
+- SQLite database setup
+
+## Requirements
+
+- Python 3.8+
+- Pip for package installation
+
+## Installation
+
+1. Clone the repository
+2. Install the dependencies:
+
+```bash
+pip install -r requirements.txt
+```
+
+## Running the application
+
+Start the application using Uvicorn:
+
+```bash
+python main.py
+```
+
+Or directly with Uvicorn:
+
+```bash
+uvicorn main:app --reload
+```
+
+The API will be available at `http://localhost:8000`
+
+## API Documentation
+
+- Swagger UI: http://localhost:8000/docs
+- ReDoc: http://localhost:8000/redoc

main.py

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+from fastapi import FastAPI
+from pathlib import Path
+from sqlalchemy import create_engine
+import uvicorn
+
+app = FastAPI(
+    title="Hello World API",
+    description="A simple FastAPI hello world application",
+    version="0.1.0"
+)
+
+# Setup database
+DB_DIR = Path("/app") / "storage" / "db"
+DB_DIR.mkdir(parents=True, exist_ok=True)
+
+SQLALCHEMY_DATABASE_URL = f"sqlite:///{DB_DIR}/db.sqlite"
+
+engine = create_engine(
+    SQLALCHEMY_DATABASE_URL,
+    connect_args={"check_same_thread": False}
+)
+
+@app.get("/")
+def read_root():
+    return {"message": "Hello World"}
+
+@app.get("/health", tags=["health"])
+def health_check():
+    """
+    Health check endpoint
+    """
+    return {
+        "status": "healthy",
+        "api_version": app.version
+    }
+
+if __name__ == "__main__":
+    uvicorn.run("main:app", host="0.0.0.0", port=8000, reload=True)

requirements.txt

@@ -0,0 +1,4 @@
+fastapi>=0.103.1
+uvicorn>=0.23.2
+sqlalchemy>=2.0.20
+pydantic>=2.3.0