org.springframework.graphql.execution

Interface DataFetcherExceptionResolver

All Known Subinterfaces:

SyncDataFetcherExceptionResolver

public interface DataFetcherExceptionResolver

Contract to resolve exceptions raised by DataFetcher's to GraphQLError's to add to the GraphQL response. Implementations are typically declared as beans in Spring configuration and invoked in order until one emits a List.

Since:

1.0.0

Author:

Rossen Stoyanchev

See Also:

SyncDataFetcherExceptionResolver

Method Summary

Modifier and Type	Method and Description
reactor.core.publisher.Mono<List<GraphQLError>>	resolveException(Throwable exception, DataFetchingEnvironment environment) Resolve the given exception and return the error(s) to add to the response.

Method Detail

resolveException

reactor.core.publisher.Mono<List<GraphQLError>> resolveException(Throwable exception,
                                                                 DataFetchingEnvironment environment)

Resolve the given exception and return the error(s) to add to the response.

Implementations can use GraphqlErrorBuilder.newError(DataFetchingEnvironment) to create an error with the coordinates of the target field, and use ErrorType to specify a category for the error.

Parameters:

exception - the exception to resolve

environment - the environment for the invoked DataFetcher

Returns:

a Mono with errors to add to the GraphQL response; if the Mono completes with an empty List, the exception is resolved without any errors added to the response; if the Mono completes empty, without emitting a List, the exception remains unresolved and gives other resolvers a chance.