LiteStar install

python -m pip install litestar
once, done, you can run in the project dir, (where app.py is)
```
litestar run
```
- if error module missing, just pip install those
  - rich
  - click
  - uvicorn
  - jsbeautifier

LiteStar syntax

after build a simple api, to interact with that web api, sample code

get

response = requests.get("http://127.0.0.1:8000/?done=true")

post

response = requests.post("http://127.0.0.1:8000/",json={"title":"car-washing","done":False})

put

response = requests.put("http://127.0.0.1:8000/profiting", json={"title":"profiting2","done":True}

read
```
data = response.json()
```

note:
- in json, true is “true”
- in python, true is “True”
- in http url, true is ok with “true” or “True”

Concepts

it provides a active server, allow other pc or program to communicate with it

it use url to point to each function of the app.py

# (python decorator: a function repackage method, put below function as a component of decorator function)
# so, the decoration function is like a white-label procedure function, need input function as lego part to output different behaved white-label funciton. 
@get("/")
async def func_a() -> str:
 
# same as below, get("/") return a the get white-label function, and take func_a as component to output a different behaved white-label function, and use the same function variable func_a, (like a repackage of func_a in white-label box)
func_a = get("/")(func_a)

ASGI: Asynchronous Server Gateway Interface
- newer for python, non block commu
WSGI: Web Server Gateway Interface

litestar use Uvicorn ASGI server, which support http, websockets and other realtime protocol
- https://www.uvicorn.org/

litestar auto create the scheme and scheme tryout page
- http://127.0.0.1:8000/schema/
- http://127.0.0.1:8000/schema/swagger
- Litestar generates an OpenAPI schema based on the route handlers, which can then be used by Swagger to set up the interactive documentation.

Table of Contents

LiteStar install

LiteStar syntax

Concepts