Practice

Description

A simple Web Server to build a Book Archive. Users can add any books to the archive and manage their books, by updating and deleting. And everyone can view all books in the archive.

Setup

Copy file .env.example to .env and change the following lines according to database settings:

MONGO_HOST=0.0.0.0
MONGO_PORT=27017
MONGO_USERNAME=admin
MONGO_PASSWORD=admin123
MONGO_DATABASE=example_db

Install dependencies:

• (Optional) Create virtual environment venv

$ python3 -m venv venv
$ source venv/bin/activate

• Install requirement libraries

$ pip3 install -r requirements.txt

Framework Sanic

Reference: Introduction | Sanic Framework

• Web Server: main.py
• Configs: config.py
• Example APIs: books_blueprint.py

Task 1:

• Run Web Server

$ python3 main.py

• Call APIs via browser and Postman

GET localhost:8080
GET localhost:8080/books

Database

Reference: 1.Databases

• Use MongoDB database and PyMongo library
• Database design: collections
• Functions to query and update data: mongodb.py

Task 2:

• Write functions to create, get, update and delete a book

RESTful API

Reference: RESTful API

• API Get all books: GET /books
• Validate HTTP request body: json_validator.py

Task 3:

• Complete CRUD books APIs

Create a book:        POST    /books

Read a book by ID:    GET     /books/{id}

Update a book by ID:  PUT     /books/{id}

Delete a book by ID:  DELETE  /books/{id}

Caching

Reference: Cache strategies

• Use Redis in-memory data store
• Functions to set and get cache: redis_cached.py
• Time-to-live

Task 4:

• API Get all books: Cache data response

Authentication & Authorization

Reference: JSON Web Tokens

• Use JSON Web Token JWT
• Generate JWT: jwt_utils.py
• Authenticate: auth.py
• Authorization: Check if the user has permission to take

Task 5:

• Write API Register and API Login
• API Create a book: Must be logged in
• API Update, Delete: Only owner are taken

Unittest

Reference: Unit Test a REST API

• Automatic API testing
• Unittest for books APIs: testing.py

Task 6:

• Complete unittest for all APIs
• Run unittest

$ python3 testing.py