Learn Web Development with Python

Working with unique constraints

Now, we can launch Django's development server to compose and send HTTP requests to understand how unique constraints work when applied to our models. Execute any of the following two commands, based on your needs, to access the API in other devices or computers connected to your LAN. Remember that we analyzed the difference between them in Chapter 13, Creating API Views, in the Launching Django's development server section:

    python manage.py runserver
    python manage.py runserver 0.0.0.0:8000 

After we run any of the previous commands, the development server will start listening at port 8000.

Now, we will compose and send an HTTP request to create a drone category with a name that already exists: 'Quadcopter' ...