Django Rest使用用户名或电子邮件登录JWT？

我在我的应用程序中使用django-rest-jwt进行身份验证.

默认情况下,用户用户名字段用于验证用户,但我希望让用户使用电子邮件或用户名登录.

django-rest-jwt是否有任何支持来实现此目的.我知道最后一个选项是编写我自己的登录方法.

无需编写自定义身份验证后端或自定义登录方法.

自定义序列化程序继承JSONWebTokenSerializer,重命名'username_field'并覆盖def validate()方法.

这适用于'username_or_email'和'password'字段,用户可以在其中输入用户名或电子邮件,并获取JSONWebToken以获取正确的凭据.

from rest_framework_jwt.serializers import JSONWebTokenSerializer

from django.contrib.auth import authenticate, get_user_model
from django.utils.translation import ugettext as _
from rest_framework import serializers

from rest_framework_jwt.settings import api_settings


User = get_user_model()
jwt_payload_handler = api_settings.JWT_PAYLOAD_HANDLER
jwt_encode_handler = api_settings.JWT_ENCODE_HANDLER
jwt_decode_handler = api_settings.JWT_DECODE_HANDLER
jwt_get_username_from_payload = api_settings.JWT_PAYLOAD_GET_USERNAME_HANDLER

class CustomJWTSerializer(JSONWebTokenSerializer):
    username_field = 'username_or_email'

    def validate(self, attrs):

        password = attrs.get("password")
        user_obj = User.objects.filter(email=attrs.get("username_or_email")).first() or User.objects.filter(username=attrs.get("username_or_email")).first()
        if user_obj is not None:
            credentials = {
                'username':user_obj.username,
                'password': password
            }
            if all(credentials.values()):
                user = authenticate(**credentials)
                if user:
                    if not user.is_active:
                        msg = _('User account is disabled.')
                        raise serializers.ValidationError(msg)

                    payload = jwt_payload_handler(user)

                    return {
                        'token': jwt_encode_handler(payload),
                        'user': user
                    }
                else:
                    msg = _('Unable to log in with provided credentials.')
                    raise serializers.ValidationError(msg)

            else:
                msg = _('Must include "{username_field}" and "password".')
                msg = msg.format(username_field=self.username_field)
                raise serializers.ValidationError(msg)

        else:
            msg = _('Account with this email/username does not exists')
            raise serializers.ValidationError(msg)

在urls.py中:

url(r'{Your url name}$', ObtainJSONWebToken.as_view(serializer_class=CustomJWTSerializer)),