Is there a way to get array of error messages instead of object when retrieving validation errors from serializers?
For example:
[
"User with this email already exists.",
"User with this phone number already exists."
]
Instead of:
{
"email": [
"User with this email already exists."
],
"phone_number": [
"User with this phone number already exists."
]
}
Yes you can, you have to check if serializer is not valid, then using for loop iterate key of error_dict and append value in list and return list
serializer = YourSerializer(data={"email":"[email protected]", "phone_number": "1234566"})
if serializer.is_valid():
serializer.save()
else:
error_list = [serializer.errors[error][0] for error in serializer.errors]
return Response(error_list)
If you want to handle the exceptions in any serializer of your application in the way you mentioned, you can write your own custom exception handler under your application directory (e.g. my_project/my_app/custom_exception_handler):
from rest_framework.views import exception_handler
def custom_exception_handler(exc, context):
""" Call REST framework's default exception handler first, to get the standard error response.
"""
response = exception_handler(exc, context)
# Now add the HTTP status code to the response.
if response is not None:
# Place here your code
errors = response.data
...
# return the `response.data`
# response.data['status_code'] = response.status_code
return response
After that update the EXCEPTION_HANDLER value in your settings.py:
REST_FRAMEWORK = {
'EXCEPTION_HANDLER': 'my_project.my_app.custom_exception_handler'
}
Checkout more details in the DRF docs
