5. Request and Response

0. Overview

• RESTful하게 request를 받고 response를 보내는 방법을 연습해본다.

1. Request, Response class

Django에서는 Request와 Response를 object로 정리해 제공한다.

Request

• Request는 HttpRequest를 extend 받아 만들어짐.

• Request.data로 바디를 넣을 수 있음. (기존 request.POST과 비슷)

Response

• TemplateResponse를 extend 받아 만들어짐.

• 다음과 같이 사용하면 됨.

return Response(data)

2. 사용례

• request.method를 통해 현재 요청한 메서드 방식 알아내기.

• Response(data, status=<status.HTTP...>)형식으로 return하면 됨.

from rest_framework import status
from rest_framework.decorators import api_view
from rest_framework.response import Response
from snippets.models import Snippet
from snippets.serializers import SnippetSerializer


@api_view(['GET', 'POST'])
def snippet_list(request):
    """
    List all code snippets, or create a new snippet.
    """
    if request.method == 'GET':
        snippets = Snippet.objects.all()
        serializer = SnippetSerializer(snippets, many=True)
        return Response(serializer.data)

    elif request.method == 'POST':
        serializer = SnippetSerializer(data=request.data)
        if serializer.is_valid():
            serializer.save()
            return Response(serializer.data, status=status.HTTP_201_CREATED)
        return Response(serializer.errors, status=status.HTTP_400_BAD_REQUEST)

from django.urls import path
from rest_framework.urlpatterns import format_suffix_patterns
from snippets import views

urlpatterns = [
    path('snippets/', views.snippet_list),
    path('snippets/<int:pk>/', views.snippet_detail),
]

urlpatterns = format_suffix_patterns(urlpatterns)