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I am using GraphQL with strawberry in my Django project. When an exception is raised, the error is shown in the terminal like the server errors. But if a user make mistakes while creating a query, It shouldn't show like this. Here is one of the errors.
GraphQL request:18:5 17 | # } 18 | register(name: "Mahmuud Hasan", email: "[email protected]", password: "admin"){ | ^ 19 | success Traceback (most recent call last): File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/graphql/execution/execute.py", line 523, in execute_field result = resolve_fn(source, info, **args) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 778, in _resolver return _get_result_with_extensions( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 765, in extension_resolver return reduce( ^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 760, in wrapped_get_result return _get_result( ^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 717, in _get_result return field.get_result( ^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/types/field.py", line 232, in get_result return self.base_resolver(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/types/fields/resolver.py", line 250, in __call__ return self.wrapped_func(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/main/mutations.py", line 47, in register raise GraphQLError("Email already in use.", extensions={"code": "BAD_USER_INPUT"}) graphql.error.graphql_error.GraphQLError: Email already in use.I don't want to show this kinds of errors in my terminal. I have tried to make custom error messages and returned as response instead of raising exceptions. But the front-end developer is using Apollo Client and it can't recognize the errors if I don't through an exception.
{ "data": null, "errors": [ { "message": "Email already in use.", "locations": [ { "line": 18, "column": 5 } ], "path": [ "register" ], "extensions": { "code": "BAD_USER_INPUT" } } ] }The response I return from the back-end always goes to the data block but he expects the errors field data, which shows if I raise an exception.
I also tried to use the strawberry.extensions.SchemaExtension to hide the errors. But the errors are printed before the on_operation function runs.
My schema.py code:
import strawberry from .queries import Query from .mutations import Mutation from strawberry.extensions import SchemaExtension from graphql import GraphQLError class CustomErrorHandlingExtension(SchemaExtension): def on_operation(self): yield result = self.execution_context.result print("Execution result:", result) print("Execution errors:", result.errors if result else "No result") if result and result.errors: for error in result.errors: if not isinstance(error.original_error, GraphQLError): error.message = "An unexpected error occurred. Please try again later." error.extensions = {"code": "INTERNAL_SERVER_ERROR"} schema = strawberry.Schema(query=Query, mutation=Mutation, extensions=[CustomErrorHandlingExtension])And here is the error response
GraphQL request:18:5 17 | # } 18 | register(name: "Mahmuud Hasan", email: "[email protected]", password: "admin"){ | ^ 19 | success Traceback (most recent call last): File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/graphql/execution/execute.py", line 523, in execute_field result = resolve_fn(source, info, **args) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 778, in _resolver return _get_result_with_extensions( ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 765, in extension_resolver return reduce( ^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 760, in wrapped_get_result return _get_result( ^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/schema/schema_converter.py", line 717, in _get_result return field.get_result( ^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/types/field.py", line 232, in get_result return self.base_resolver(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/env/lib/python3.12/site-packages/strawberry/types/fields/resolver.py", line 250, in __call__ return self.wrapped_func(*args, **kwargs) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/home/mahmud/Projects/Alyve/main/mutations.py", line 47, in register raise GraphQLError("Email already in use.", extensions={"code": "BAD_USER_INPUT"}) graphql.error.graphql_error.GraphQLError: Email already in use. Execution result: ExecutionResult(data=None, errors=[GraphQLError('Email already in use.', locations=[SourceLocation(line=18, column=5)], path=['register'], extensions={'code': 'BAD_USER_INPUT'})]) Execution errors: [GraphQLError('Email already in use.', locations=[SourceLocation(line=18, column=5)], path=['register'], extensions={'code': 'BAD_USER_INPUT'})]I also tried to override the report error function, but it doesn't works either.
from strawberry.django.views import GraphQLView class CustomGraphQLView(GraphQLView): def get_context(self, request, response): return { "request": request, "response": response } def report_errors(self, errors, result): filtered_errors = [] for error in errors: if isinstance(error.original_error, GraphQLError): logger.info(f"GraphQL Validation Error: {error.message}") else: filtered_errors.append(error) if filtered_errors: super().report_errors(filtered_errors, result)I can't find proper solution for this issue. How can I hide this errors? Thanks in advanced.
