# Django REST reCAPTCHA
**Django REST reCAPTCHA v2 and v3 field serializer**
[](https://github.com/llybin/drf-recaptcha/actions)
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[](https://github.com/psf/black)
[](https://pypi.org/project/drf-recaptcha/)
[](https://pypi.org/project/drf-recaptcha/)
[](https://pypi.org/project/drf-recaptcha/)
## Requirements
* Python: 3.7, 3.8, 3.9, 3.10, 3.11
* Django: 3.2, 4.0, 4.1, 4.2
* DRF: 3.11, 3.12, 3.13, 3.14
## Installation
1. [Sign up for reCAPTCHA](https://www.google.com/recaptcha/)
2. Install with `pip install drf-recaptcha`
3. Add `"drf_recaptcha"` to your `INSTALLED_APPS` settings.
4. Set in settings `DRF_RECAPTCHA_SECRET_KEY`
```python
INSTALLED_APPS = [
...,
"drf_recaptcha",
...,
]
...
DRF_RECAPTCHA_SECRET_KEY = "YOUR SECRET KEY"
```
## Usage
```python
from rest_framework.serializers import Serializer, ModelSerializer
from drf_recaptcha.fields import ReCaptchaV2Field, ReCaptchaV3Field
from feedback.models import Feedback
class V2Serializer(Serializer):
recaptcha = ReCaptchaV2Field()
...
class GetOTPView(APIView):
def post(self, request):
serializer = V2Serializer(data=request.data, context={"request": request})
serializer.is_valid(raise_exception=True)
...
class V3Serializer(Serializer):
recaptcha = ReCaptchaV3Field(action="example")
...
class V3WithScoreSerializer(Serializer):
recaptcha = ReCaptchaV3Field(
action="example",
required_score=0.6,
)
...
class GetReCaptchaScore(APIView):
def post(self, request):
serializer = V3WithScoreSerializer(data=request.data, context={"request": request})
serializer.is_valid()
score = serializer.fields['recaptcha'].score
...
class FeedbackSerializer(ModelSerializer):
recaptcha = ReCaptchaV2Field()
class Meta:
model = Feedback
fields = ("phone", "full_name", "email", "comment", "recaptcha")
def validate(self, attrs):
attrs.pop("recaptcha")
...
return attrs
```
## Settings
`DRF_RECAPTCHA_SECRET_KEY` - set your Google reCAPTCHA secret key. Type: str.
`DRF_RECAPTCHA_DEFAULT_V3_SCORE` - by default: `0.5`. Type: float.
`DRF_RECAPTCHA_ACTION_V3_SCORES` - by default: `{}`. Type: dict. You can define specific score for each action e.g. `{"login": 0.6, "feedback": 0.3}`
`DRF_RECAPTCHA_DOMAIN` - by default: `www.google.com`. Type: str.
`DRF_RECAPTCHA_PROXY` - by default: `{}`. Type: dict. e.g. `{'http': 'http://127.0.0.1:8000', 'https': 'https://127.0.0.1:8000'}`
`DRF_RECAPTCHA_VERIFY_REQUEST_TIMEOUT` - by default: `10`. Type: int.
## reCAPTCHA v3
Validation is passed if the score value returned by Google is greater than or equal to required score.
Required score value: `0.0 - 1.0`
### Priority of score value
If not defined or zero in current item then value from next item.
1. Value for action in settings `DRF_RECAPTCHA_ACTION_V3_SCORES`
2. Value in argument `required_score` of field
3. Default value in settings `DRF_RECAPTCHA_DEFAULT_V3_SCORE`
4. Default value `0.5`
## Testing
Set `DRF_RECAPTCHA_TESTING=True` in settings, no request to Google, no warnings, `DRF_RECAPTCHA_SECRET_KEY` is not required, set returning verification result in setting below.
`DRF_RECAPTCHA_TESTING_PASS=True|False` - all responses are pass, default `True`.
Use `from django.test import override_settings`
## Credits
[django-recaptcha](https://github.com/praekelt/django-recaptcha)
reCAPTCHA copyright 2012 Google.