Struct ApiErrorBuilder 

pub struct ApiErrorBuilder<C, D> { /* private fields */ }

Typestate builder for ApiError.

Type parameters track whether required fields have been set:

• C — ErrorCode once .code() is called, () otherwise
• D — String once .detail() is called, () otherwise

ApiErrorBuilder::build is only available when both are set.

Requires std or alloc.

Implementations

impl<D> ApiErrorBuilder<(), D>

pub fn code(self, code: ErrorCode) -> ApiErrorBuilder<ErrorCode, D>

Set the error code. title and status are derived from it automatically.

impl<C> ApiErrorBuilder<C, ()>

pub fn detail(self, detail: impl Into<String>) -> ApiErrorBuilder<C, String>

Set the human-readable error detail message.

impl<C, D> ApiErrorBuilder<C, D>

pub fn request_id(self, id: Uuid) -> Self

Attach a request ID.

pub fn errors(self, errors: Vec<ValidationError>) -> Self

Attach structured field-level validation errors.

pub fn causes(self, causes: Vec<ApiError>) -> Self

Attach a chain of nested cause errors (serialized as "causes").

impl ApiErrorBuilder<ErrorCode, String>

pub fn build(self) -> ApiError

Build the ApiError.

Only available once both code and detail have been set.