E-commerce project day 4

In the thirty-sixth blog post of my Python learning series, I dive into showcasing my progress and insights gained from working on an e-commerce project using FastAPI. This project revolves around storing user information and product data in MongoDB, which has been a rich learning experience for me. Throughout this journey, I have gained valuable knowledge and skills that I'm excited to share in this blog post.

Today Progress:

Re-Auth API: Authentication APIs typically include an endpoint that receives a token from the client and validates the user's identity.

```python @user_router.get("/me",response_model=User) async def reAuth(authorization: str = Header(...)): try: if not authorization.startswith("Bearer "): raise HTTPException(status_code=401, detail="Invalid authorization header") token = authorization.replace("Bearer ", "")

Example: Replace with your token verification logic

user = verify_token(token) if user is None: raise HTTPException(status_code=401, detail="Invalid token")

Example: Replace with your user authentication logic

verified_user = await authenticate_user(user.get("email"), user.get("password")) if verified_user is None: raise HTTPException(status_code=401, detail="User not found")

verified_user['id'] = str(verified_user['_id']) return verified_user except Exception as e: raise HTTPException(status_code=401, detail=str(e))

async def authenticate_user(email: str, password: str): collection = get_user_collection() return await collection.find_one({"email": email, "password": password})


* Middleware: Middleware is a set of common code that executes before an API is called. It allows us to perform various operations efficiently.

    ```python
    class AuthMiddleware(APIRoute):
        async def __call__(self, request: Request) -> Callable:
            if "Authorization" not in request.headers:
                raise HTTPException(status_code=401, detail="Unauthorized")

            token = request.headers["Authorization"].replace("Bearer ", "")
            try:
                payload = verify_token(token)
                request.state.user = payload
            except Exception as e:
                raise HTTPException(status_code=401, detail="Invalid token")

            return await super().__call__(request)

For the next day, we have some work on cart apis.

Conclusion:

In my recent blog post, I shared insights from my e-commerce project using FastAPI and MongoDB. I discussed the Re-Auth API for user authentication, showcasing token validation and user verification logic. Additionally, I emphasized the significance of middleware in API development, particularly for executing common code efficiently before API calls.

Next, I plan to work on cart APIs to further enhance project functionality. Overall, the blog post offers a concise summary of my FastAPI learning journey and practical implementations in the e-commerce domain.

Thank you💕💕

Day 36: E-commerce project day 4

Example: Replace with your token verification logic

Example: Replace with your user authentication logic

Conclusion: