Django REST Framework
Introduction
From monolithic to services
Daniel Correa
Web Engineer
@danielcb29
What
Is
Django?
2003
MVT
Model
MVT
Model
Model Definition
=>
MVT
Model
Fields
=>
{
MVT
Model
Methods
=>
{
Model
View
MVT
=>
Model
View
MVT
=>
Model
View
Template
=>
=>
MVT
¿MVT == MVC?
Forms
forms.py
form.html
Urls
cars/urls.py
And the others...
Apps https://docs.djangoproject.com/en/2.1/ref/applications/
Admin https://docs.djangoproject.com/en/2.1/ref/contrib/admin/
Tests https://docs.djangoproject.com/en/2.1/topics/testing/
Context Processors https://docs.djangoproject.com/en/2.1/ref/templates/api/
Migrations https://docs.djangoproject.com/en/2.1/topics/migrations/
¿MVT
==
Always Server-side rendering ?
Please provide a service to get the car list on my React Native App
After a while...
- Identify our client type using URL param and return a JSON or HTTP Response according to the case
- Doing the same but using the user agent to check if there is a mobile device or a desktop browser
- Build a separate view that returns just JSON on certain URLs
But then...
What happens with URLs or out app routing?
What happens with the CBV that already have some logic abstractions?
Even Worse: What happens with the Authentication?, CORS?
...etc
REST!
REpresentational
State
Transfer
REST
Client
Server
HTTP Request
}
Method: GET, POST, PUT, DELETE
Header: Metadata
Endpoint: URL to the source
Payload (optional): Information that client sends to server
REST
Client
Server
HTTP Response
{
Status Code: 20*, 30*, 40*, 50*
Response Data (optional): Commonly JSON
Response Header: Metadata
Django
REST
Framwork
Warning...
Python (2.7, 3.4, 3.5, 3.6, 3.7)
Django (1.11, 2.0, 2.1)REST framework requires the following:
Getting start
pip install djangorestframework
pip install markdown
pip install django-filter In our Python environment we start running the following commands:
1
Getting start
INSTALLED_APPS = (
...
'rest_framework',
)Then importing the app in our INSTALLED_APPS:
2
Getting start
urlpatterns = [
...
url(r'^<url>/',
include('rest_framework.urls'))
]In case we want to use rest framework Browsable API
3
We are ready to start!
4
How to implement your API
Serializer
How to implement your API
Serializer
=>
View
How to implement your API
Serializer
=>
View
=>
Endpoint
And that's it!, you have an API working from your Django APP
Your client is happy now!
Thanks!
Questions?
@danielcb29
