holder(ForeignKey to user, setting to Null, if user was deleted)
granted_to_type(PositiveSmallIntegerField from 1 to 3)
create(self, request)acccepting POST requests with JSON information about new certificate.
certificate_pkJSON with Certificate id on bdn
errorJSON with errors
retrieve(self, request, pk=None)acccepting GET requests with certificate id and reply with JSON information about certificate.
list(self, request)acccepting GET requests reply with JSON information about certificates by issuer user.
get_certificates_by_learner(self, request)acccepting GET requests with
eth_addressand reply with JSON information about certificates by learner ETH Address.
delete_by_id(self, request, pk=None)acccepting POST requests with certificate id in line.