Class FlattenValidationErrorsExtensions

Namespace

Trellis

Assembly

Trellis.Results.dll

Extension methods for extracting ValidationError data from failed results.

public static class FlattenValidationErrorsExtensions

Inheritance

object

FlattenValidationErrorsExtensions

Inherited Members

object.Equals(object)

object.Equals(object, object)

object.GetHashCode()

object.GetType()

object.MemberwiseClone()

object.ReferenceEquals(object, object)

object.ToString()

Methods

FlattenValidationErrors<T>(Result<T>)

Extracts and merges all ValidationError field errors from the result's error. If the error is an AggregateError, all nested validation errors are flattened and merged. If the error is a ValidationError, it is returned directly.

public static ValidationError? FlattenValidationErrors<T>(this Result<T> result)

Parameters

result Result<T>

The result to extract validation errors from.

Returns

ValidationError

A merged ValidationError containing all field errors, or null if no validation errors exist.

Type Parameters

T

Type of the result value.

Remarks

Warning: Non-validation errors within an AggregateError are silently discarded. If the aggregate contains a mix of ValidationError and other error types (e.g., DomainError), only the validation errors are returned.

For full control over all error types in an aggregate, use the onAggregate parameter on MatchError<TIn, TOut>(Result<TIn>, Func<TIn, TOut>, Func<ValidationError, TOut>?, Func<NotFoundError, TOut>?, Func<ConflictError, TOut>?, Func<BadRequestError, TOut>?, Func<UnauthorizedError, TOut>?, Func<ForbiddenError, TOut>?, Func<DomainError, TOut>?, Func<RateLimitError, TOut>?, Func<ServiceUnavailableError, TOut>?, Func<UnexpectedError, TOut>?, Func<AggregateError, TOut>?, Func<Error, TOut>?) instead.