Step#10. 로그인앱에 jwt 이용하기

1) 로그인 앱의 views.py 수정하기

(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango »
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango » pwd
/Users/marie/mynewdjango
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango » tree
.
├── comment
│   ├── __init__.py
│   ├── __pycache__
│   │   ├── __init__.cpython-37.pyc
│   │   ├── models.cpython-37.pyc
│   │   ├── urls.cpython-37.pyc
│   │   └── views.cpython-37.pyc
│   ├── admin.py
│   ├── apps.py
│   ├── migrations
│   │   ├── 0001_initial.py
│   │   ├── __init__.py
│   │   └── __pycache__
│   │       ├── 0001_initial.cpython-37.pyc
│   │       └── __init__.cpython-37.pyc
│   ├── models.py
│   ├── tests.py
│   ├── urls.py
│   └── views.py
├── db.sqlite3
├── manage.py
├── mynewjangodirec
│   ├── __init__.py
│   ├── __pycache__
│   │   ├── __init__.cpython-37.pyc
│   │   ├── settings.cpython-37.pyc
│   │   ├── urls.cpython-37.pyc
│   │   └── wsgi.cpython-37.pyc
│   ├── asgi.py
│   ├── settings.py
│   ├── urls.py
│   └── wsgi.py
└── user
    ├── __init__.py
    ├── __pycache__
    │   ├── __init__.cpython-37.pyc
    │   ├── admin.cpython-37.pyc
    │   ├── models.cpython-37.pyc
    │   ├── urls.cpython-37.pyc
    │   └── views.cpython-37.pyc
    ├── admin.py
    ├── apps.py
    ├── migrations
    │   ├── 0001_initial.py
    │   ├── __init__.py
    │   └── __pycache__
    │       ├── 0001_initial.cpython-37.pyc
    │       └── __init__.cpython-37.pyc
    ├── models.py
    ├── tests.py
    ├── urls.py
    └── views.py

10 directories, 42 files
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango »

(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango »
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango » cat ./user/views.py
from django.shortcuts import render

# Create your views here.

import json                           #json은 자바스크립트의 오브젝트를 나열한 데이터타입! 파이썬은 json을 모르기때문에 import 필수!
from django.views import View         #http 렌더링 및 http response의 메소드 구별을 위해 import 필수!
from django.http import JsonResponse #파이썬은 json을 모름. 그래서! http response를json으로 응답하기 위해서 import 필수!

from .models import Users             #생성한"Users"라는 클래스에 지금의 views.py을 적용하고자 import!


class UserView(View):
    def post(self, request):
        data = json.loads(request.body)
        Users(
                name     = data['name'],
                email    = data['email'],
                password = data['password'],
        ).save()

        return JsonResponse({'message':'It\'s success!'}, status = 200)


class AuthView(View):
    def post(self, request):
        data = json.loads(request.body)
        user = Users.objects.get(email=data['email'])
        if data['password'] == user.password:
            return JsonResponse({'message':'Thank you for Login!'}, status = 200)
        else:
            return JsonResponse({'message':'Invalid Passowrd!!'}, status = 401)



(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango »
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango » vi ./user/views.py
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango »
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango » cat ./user/views.py
import jwt
import json
import bcrypt

from django.views import View
from django.http  import JsonResponse
from django.db    import IntegrityError
from mynewdjangodirec.settings import SECRET_KEY

from .models      import Users

class UserView(View):
    def post(self, request):
        data = json.loads(request.body)
        #print(data)
        try:
            hashed_password = bcrypt.hashpw(data['password'].encode('utf-8'),bcrypt.gensalt())
            Users(
                name     = data['name'],
                email    = data['email'],
                password = hashed_password.decode('utf-8')
            ).save()

            return JsonResponse({'message':'SUCCESS'}, status = 200)
        except KeyError: #키에러
            return JsonResponse({'message':'INVALID_KEYS'}, status = 400)
        except IntegrityError: #유니크한 데이터 필드에 중복값을 입력시 에러 처리
            return JsonResponse({'message': 'EXCEPTED_DATA'}, status = 401)

    def get(self, request, user_id):
        try:
            user = list(Users.objects.filter(id = user_id).values())
            return JsonResponse({'data':user}, status=200)
        except Users.DoesNotExist:#넘긴 유저아이디가 존재하지 않는경우 에러처리
            return JsonResponse({'message':'INVALID_USER'}, status = 400)


class AuthView(View):
    def post(self, request):
        data = json.loads(request.body)
        try:
            user = Users.objects.get(email = data['email'])
            if bcrypt.checkpw(data['password'].encode('utf-8'),user.password.encode('utf-8')):
                access_token = jwt.encode({'id':user.id},SECRET_KEY,algorithm='HS256')
                return JsonResponse({'access_token':access_token.decode('utf-8')}, status = 200)
            else:
                return JsonResponse({'message':'INVALID_PASSWORD'}, status = 401)
        except KeyError: #키에러
            return JsonResponse({'message':'INVALID_KEYS'}, status = 400)
        except Users.DoesNotExist: #유저가 존재하지 않을 경우
            return JsonResponse({'message':'INVALID_USER'}, status = 400)
(test_project) marie@MarieJungui-MacBookPro:~/mynewdjango »

2) 장고서버 실행해서 테스트하기