Programmed by [email protected]
A simple example to show how Rest Api can be written in Python using Flask micro-framework.
We will do CRUD operations on books repository. We expose this books data via Rest Api, and store this data in sql lite db files (to keep things focused on rest api), and also add authentication to our Apis.
pip3 install Flask
pip3 install sql_alchemy
pip3 install pyjwt
-
Open Terminal, and enter below commands:
-
Start python shell
python3 -
Add books data by running below commands, one at a time in python terminal
from BookModel import * db.create_all() Book.add_book('The Tiger Who Came To Tea',4.00,9780007215997) Book.add_book('Hippobottymus',2.00,9781848690516) Book.add_book('The Wonky Donkey',2.99,9781407195575) from UserModel import * db.create_all() User.create_user('user1','password')
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Request
POST http://127.0.0.1:5000/login
Headers
Content-Type: application/json
Body
{
"username" : "user1",
"password" : "password"
}
Response
An authenticated JWT token like below
eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1NzM0OTE1MDN9.A9rSZITZJBuSHN2PDrd9FV27mFja2teCNWdyZcDlHn0
Request
GET http://127.0.0.1:5000/books?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1NzM0OTE1MDN9.A9rSZITZJBuSHN2PDrd9FV27mFja2teCNWdyZcDlHn0
Headers
Content-Type: application/json
Response
Body
{
"books": [
{
"isbn": 9780007215997,
"name": "The Tiger Who Came To Tea",
"price": 4
},
{
"isbn": 9781848690516,
"name": "Hippobottymus",
"price": 2
},
{
"isbn": 9781407195575,
"name": "The Wonky Donkey",
"price": 4
},
{
"isbn": 9780347215234,
"name": "The Cat Sat On A Mat",
"price": 2.99
}
]
}
Request
POST http://127.0.0.1:5000/books?token=eyJ0eXAiOiJKV1QiLCJhbGciOiJIUzI1NiJ9.eyJleHAiOjE1NzM0OTE1MDN9.A9rSZITZJBuSHN2PDrd9FV27mFja2teCNWdyZcDlHn0
Headers
Content-Type: application/json
Body
{
"isbn": 9780347215234,
"name": "The Cat Sat On A Mat",
"price": 2.99,
"test": "hello"
}
Response
Status 201 CREATED
For Other Operations download Postman requests from the repository