Generate code

@conniecodes

61.6K followers · usually 26.9K views a post

Views

131.0K

Likes

6.8K

Comments

219

Selling · SaaS › Developer Tool

FastAPIseen in 2 videos →conniecodes.substack.com ↗

Why it worked

The video provides a concise and practical tutorial on building a CRUD API, a common task for developers. The use of FastAPI and Pydantic, along with clear code demonstrations and testing, makes it highly valuable for beginners and experienced developers alike. The fast-paced, step-by-step approach fits well with the TikTok format.

Summary

This video demonstrates how to build a CRUD API using FastAPI and Pydantic. It covers creating endpoints for GET, POST, PUT, and DELETE operations, and shows how to test these endpoints using curl commands.

Structure

1Import FastAPI and BaseModel
2Initialize app and in-memory database
3Define Item model
4Create root, POST, GET, PUT, and DELETE endpoints
5Test all endpoints using curl

Product placement

The video shows a screen recording of a developer writing Python code using the FastAPI framework to create a CRUD API. FastAPI is explicitly imported and used throughout the code.

Original caption

HOW TO create a CRUD API in under 2 minutes. A super quick BEGINNER FRIENDLY coding tutorial on how to build out a Create, Read, Update, Delete API. We go over all four endpoints and then test it out at the end of the TikTok. Let me know if you have any questions and I hope this was helpful. I am attaching to this TikTok a more basic version of this if you want to know just how to create an API. This is using FastAPI and Pydantic for the item class. Why Pydantic? We could do it without using it, but it does convert automatically. For instance, our input for our post is a string 999. By using pydantic, it does the string to float conversion for us automatically, which removes some validation check code for us. #coding #coder #softwareengineer #softwaredeveloper #compsci

More from @conniecodes

Their other posts in the index, biggest breakout first.

On-screen text

crud_api.py Generate code from fastapi import FastAPI from pydantic import BaseModel app = FastAPI() items = {} next_id = 1 class Item(BaseModel): id: int | None = None name: str price: float @app.get("/") def root(): return {"message": "CRUD API"} @app.post("/items", status_code=201) def create_item(item: Item): global next_id item.id = next_id items[next_id] = item next_id += 1 return item @app.get("/items") def get_items(): return list(items.values()) @app.get("/items/{item_id}") def get_items(item_id: int): if item_id not in items: raise HTTPException(status_code=404) return items[item_id] @app.put("/items/{item_id}") def update_item(item_id: int, item: Item): if item_id not in items: raise HTTPException(status_code=404) item.id = item_id items[item_id] = item return item @app.delete("/items/{item_id}") def delete_item(item_id: int): if item_id not in items: raise HTTPException(status_code=404) del items[item_id] return {"message": "deleted"} connie@MacBookAir tiktok-examples % curl http://localhost:8000 {"message":"CRUD API"} connie@MacBookAir tiktok-examples % curl http://localhost:8000/items connie@MacBookAir tiktok-examples % curl http://localhost:8000/items {"detail":"Method Not Allowed"} connie@MacBookAir tiktok-examples % curl http://localhost:8000/items {"detail":"Not Found"} connie@MacBookAir tiktok-examples % curl -X POST http://localhost:8000/items \ -H "Content-Type: application/json" \ -d "{\"name\": \"Laptop\", \"price\": 999.99}" {"id":1,"name":"Laptop","price":999.99} connie@MacBookAir tiktok-examples % curl http://localhost:8000/item {"detail":"Not Found"} connie@MacBookAir tiktok-examples % curl http://localhost:8000/items/1 {"id":1,"name":"Laptop","price":999.99} connie@MacBookAir tiktok-examples % curl -X PUT http://localhost:8000/items/1 \ -H "Content-Type: application/json" \ -d "{\"name\": \"Gaming Laptop\", \"price\": 1299.99}" {"id":1,"name":"Gaming Laptop","price":1299.99} connie@MacBookAir tiktok-examples % curl http://localhost:8000/items/1 {"id":1,"name":"Gaming Laptop","price":1299.99} connie@MacBookAir tiktok-examples % curl -X DELETE http://localhost:8000/items/1 {"message":"deleted"} connie@MacBookAir tiktok-examples % curl http://localhost:8000/items/1 {"detail":"Not Found"}