old_contents: from django.http import JsonResponse, HttpResponse, HttpResponseBadRequest
  from django.views.decorators.csrf import csrf_exempt
  import json
  from helpers import get_school_list, get_school_by_email, create_user
  from django.contrib.auth import authenticate, login as Django_login
  
  
  def get_schools(request):
      resp = JsonResponse({'schools': get_school_list()})
      resp['Access-Control-Allow-Origin'] = 'http://localhost:3000'
      return resp
  
  
  @csrf_exempt
  def signup(request):
      if request.method == "POST":
          signup_parameters = json.loads(request.body.decode('utf-8'))
          email = signup_parameters['email']
          school = get_school_by_email(email)
          if school is not None:
              create_user(email, school)
              resp = HttpResponse('Signup OK')
          else:
              resp = HttpResponseBadRequest('Invalid univesity email')
      elif request.method == "OPTIONS":
          resp = HttpResponse('')
          resp['Access-Control-Allow-Headers'] = 'Content-Type'
      else:
          resp = HttpResponseBadRequest('Invalid request method')
      resp['Access-Control-Allow-Origin'] = 'http://localhost:3000'
      return resp
  
  
  @csrf_exempt
  def login(request):
      if request.method == "POST":
          login_parameters = json.loads(request.body.decode('utf-8'))
          email = login_parameters['email']
          password = login_parameters['password']
          user = authenticate(request, email=email, password=password)
          if user is not None:
              Django_login(request, user)
              resp = HttpResponse('Login OK')
              resp.set_cookie('unichat_login', 'jim')
          else:
              resp = HttpResponseBadRequest('Bad credentials')
      elif request.method == "OPTIONS":
          resp = HttpResponse('')
          resp['Access-Control-Allow-Headers'] = 'Content-Type'
      else:
          resp = HttpResponseBadRequest('Invalid request method')
      resp['Access-Control-Allow-Origin'] = 'http://localhost:3000'
      return resp
  
new_contents: from django.http import JsonResponse, HttpResponse, HttpResponseBadRequest
  from django.views.decorators.csrf import csrf_exempt
  import json
  from helpers import get_school_list, get_school_by_email, create_user
  from django.contrib.auth import authenticate, login as Django_login
  
  FRONTEND_URL = 'http://unichat.eu'
  
  
  def get_schools(request):
      resp = JsonResponse({'schools': get_school_list()})
      resp['Access-Control-Allow-Origin'] = FRONTEND_URL
      return resp
  
  
  @csrf_exempt
  def signup(request):
      if request.method == "POST":
          signup_parameters = json.loads(request.body.decode('utf-8'))
          email = signup_parameters['email']
          school = get_school_by_email(email)
          if school is not None:
              create_user(email, school)
              resp = HttpResponse('Signup OK')
          else:
              resp = HttpResponseBadRequest('Invalid univesity email')
      elif request.method == "OPTIONS":
          resp = HttpResponse('')
          resp['Access-Control-Allow-Headers'] = 'Content-Type'
      else:
          resp = HttpResponseBadRequest('Invalid request method')
      resp['Access-Control-Allow-Origin'] = FRONTEND_URL
      return resp
  
  
  @csrf_exempt
  def login(request):
      if request.method == "POST":
          login_parameters = json.loads(request.body.decode('utf-8'))
          email = login_parameters['email']
          password = login_parameters['password']
          user = authenticate(request, email=email, password=password)
          if user is not None:
              Django_login(request, user)
              resp = HttpResponse('Login OK')
              resp.set_cookie('unichat_login', 'jim')
          else:
              resp = HttpResponseBadRequest('Bad credentials')
      elif request.method == "OPTIONS":
          resp = HttpResponse('')
          resp['Access-Control-Allow-Headers'] = 'Content-Type'
      else:
          resp = HttpResponseBadRequest('Invalid request method')
      resp['Access-Control-Allow-Origin'] = FRONTEND_URL
      return resp
  
subject: Use frontend domain to allow cross origin django requests