Initialize the app

Author: PrayagRaj22

.gitignore

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+env
+__pycache__
+
+.env 

Project/.github/workflows/ci.yml

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+venv

Project/.gitignore

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+# 📝 FastAPI Todo API
+
+A simple FastAPI-based Todo application with SQLite + Docker support.
+
+---
+
+## 🚀 Features
+
+- ✅ REST API with FastAPI
+- 🗃️ SQLite database using SQLModel
+- 🐳 Dockerized for easy deployment
+- 🔄 GitHub Actions CI for linting and build test
+
+---
+
+## 📦 Tech Stack
+
+- FastAPI
+- SQLModel
+- SQLite
+- Docker
+- GitHub Actions
+
+---
+
+## 🛠️ Setup Locally
+
+```bash
+git clone https://github.com/YOUR_USERNAME/fastapi-todo.git
+cd fastapi-todo
+python -m venv venv
+source venv/bin/activate
+pip install -r requirements.txt
+uvicorn app.main:app --reload

Project/Dockerfile

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+from sqlmodel import SQLModel, create_engine
+
+#! SQLite file name
+sqlite_file_name = "database.db"
+DATABASE_URL = f"sqlite:///{sqlite_file_name}"
+
+
+#! Create engine
+engine = create_engine(DATABASE_URL, echo=True)
+
+
+#! Initialize DB
+def create_db_and_table():
+    SQLModel.metadata.create_all(engine)

Project/README.md

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+from contextlib import asynccontextmanager
+from fastapi import FastAPI, HTTPException
+from database import create_db_and_table, engine
+from models import Todo
+from sqlmodel import Session, select
+from typing import List
+import logging
+
+#! Setup basic logging
+logging.basicConfig(level=logging.INFO)
+
+
+@asynccontextmanager
+async def lifespan(app: FastAPI):
+    logging.info("🚀 Starting up... Creating database tables.")
+    create_db_and_table()
+
+    yield
+
+    #! Shutdown login (cleanup)
+    logging.info("🛑 Shutting down... Cleaning up resources")
+
+
+app = FastAPI(lifespan=lifespan)
+
+
+#! Create Todo list
+@app.post("/todo/", response_model=Todo)
+def create_todo(todo: Todo):
+    with Session(engine) as session:
+        session.add(todo)
+        session.commit()
+        session.refresh(todo)
+        return todo
+
+
+#! Get all todos
+@app.get("/todo/", response_model=List[Todo])
+def get_all_todos():
+    with Session(engine) as session:
+        todos = session.exec(select(Todo)).all()
+        return todos
+
+
+#! Get todo by id
+@app.get("/todo/{todo_id}/", response_model=Todo)
+def get_todo(todo_id: int):
+    with Session(engine) as session:
+        todo = session.get(Todo, todo_id)
+        if not todo:
+            raise HTTPException(status_code=404, detail="Todo not found")
+        return todo

Project/app/database.py

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+from sqlmodel import SQLModel, Field
+from typing import Optional
+
+
+#! Create Model
+class Todo(SQLModel, table=True):
+    id: Optional[int] = Field(default=None, primary_key=True)
+    title: str
+    completed: bool = False

Project/app/main.py

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+annotated-types==0.7.0
+anyio==4.9.0
+certifi==2025.4.26
+click==8.1.8
+colorama==0.4.6
+dnspython==2.7.0
+email_validator==2.2.0
+fastapi==0.115.12
+fastapi-cli==0.0.7
+greenlet==3.2.1
+h11==0.16.0
+httpcore==1.0.9
+httptools==0.6.4
+httpx==0.28.1
+idna==3.10
+Jinja2==3.1.6
+markdown-it-py==3.0.0
+MarkupSafe==3.0.2
+mdurl==0.1.2
+pydantic==2.11.4
+pydantic_core==2.33.2
+Pygments==2.19.1
+python-dotenv==1.1.0
+python-multipart==0.0.20
+PyYAML==6.0.2
+rich==14.0.0
+rich-toolkit==0.14.5
+shellingham==1.5.4
+sniffio==1.3.1
+SQLAlchemy==2.0.40
+sqlmodel==0.0.24
+starlette==0.46.2
+typer==0.15.3
+typing-inspection==0.4.0
+typing_extensions==4.13.2
+uvicorn==0.34.2
+watchfiles==1.0.5
+websockets==15.0.1

Project/app/models.py

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+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+#! Root Path
+@app.get("/")
+async def root():
+    return {"message": "Hello Genius"}
+
+
+#! Path parameter - Integer
+@app.get("/items/{item_id}")
+async def readItem(item_id: int):
+    return {"Item ID ": item_id}
+
+
+#! Path parameter - String
+@app.get("/items_name/{item_name}")
+async def readItemName(item_name: str):
+    return {"Item Name ": item_name}
+
+#! Query Parameters