6.1. FastAPI About

  • Path

  • Operation

  • Path Operation Function

  • Path Operation Decorator

  • Routing

  • Order of Path Operation Functions matters

  • Tags are identifiers used to group routes. Routes with the same tags are grouped into a section on the API documentation.

>>> from fastapi import FastAPI
>>> app = FastAPI()
>>>
>>>
>>> @app.get('/hello')
... def hello():
...     return {'message': 'hello'}
>>>
>>>
>>> @app.get('/ehlo')
... def ehlo():
...     return {'message': 'ehlo'}

6.1.1. Operation

  • app.get()

  • app.post()

  • app.put()

  • app.patch()

  • app.delete()

  • app.head()

  • app.options()

  • app.trace()

6.1.2. Path

  • / - URI

6.1.3. Path Operation Decorator

  • @app.get('/')

6.1.4. Path Operation Function

>>> def hello():
...     return {'message': 'hello world'}

6.1.5. Use Case - 0x01

>>> from fastapi import FastAPI
>>> app = FastAPI()
>>>
>>>
>>> @app.get('/hello')
... def hello_get():
...     return {'message': 'get'}
>>>
>>> @app.post('/hello')
... def hello_post():
...     return {'message': 'post'}
>>>
>>> @app.put('/hello')
... def hello_put():
...     return {'message': 'put'}
>>>
>>> @app.patch('/hello')
... def hello_patch():
...     return {'message': 'patch'}
>>>
>>> @app.delete('/hello')
... def hello_delete():
...     return {'message': 'delete'}
>>>
>>> @app.head('/hello')
... def hello_head():
...     return {'message': 'head'}
>>>
>>> @app.options('/hello')
... def hello_options():
...     return {'message': 'options'}
>>>
>>> @app.trace('/hello')
... def hello_trace():
...     return {'message': 'trace'}