Struct ErrorResponse 

pub struct ErrorResponse {
    pub code: String,
    pub message: String,
    pub details: Option<Value>,
}

A generic error response that can be serialized and sent over the wire.

Produced by protocol macros when a handler returns an Err(_) value. Serializes to {"code": "NOT_FOUND", "message": "..."} (details omitted when absent).

Fields

code: String

Machine-readable error code (e.g. "NOT_FOUND", "INVALID_PARAMS").

message: String

Human-readable error message.

details: Option<Value>

Optional structured details about the error (omitted from serialization when absent).

Implementations

impl ErrorResponse

pub fn new(code: ErrorCode, message: impl Into<String>) -> Self

Create a new ErrorResponse from an ErrorCode and a message.

pub fn with_details(self, details: Value) -> Self

Attach structured details to this error response.

Trait Implementations

impl Clone for ErrorResponse

fn clone(&self) -> ErrorResponse

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ErrorResponse

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ErrorResponse

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ErrorResponse

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for ErrorResponse

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0: use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0: replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl Serialize for ErrorResponse

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.