Struct ValidationError 

pub struct ValidationError {
    pub field: String,
    pub message: String,
    pub rule: Option<String>,
}

A single field-level validation error, used in ApiError::errors.

Carried as a documented extension member alongside the standard RFC 9457 fields.

Requires std or alloc (fields contain String).

Examples

use api_bones::error::ValidationError;

let err = ValidationError {
    field: "/email".into(),
    message: "must be a valid email".into(),
    rule: Some("email".into()),
};
assert_eq!(err.to_string(), "/email: must be a valid email (rule: email)");

let err2 = ValidationError {
    field: "/name".into(),
    message: "is required".into(),
    rule: None,
};
assert_eq!(err2.to_string(), "/name: is required");

Fields

field: String

JSON Pointer to the offending field (e.g. "/email").

message: String

Human-readable description of what went wrong.

rule: Option<String>

Optional machine-readable rule that failed (e.g. "min_length").

Trait Implementations

impl Clone for ValidationError

fn clone(&self) -> ValidationError

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ValidationError

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ValidationError

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for ValidationError

Available on crate features std or alloc only.

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

Formats the value using the given formatter.

impl Error for ValidationError

Available on crate features std or alloc only.

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 PartialEq for ValidationError

fn eq(&self, other: &ValidationError) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ValidationError

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Eq for ValidationError

impl StructuralPartialEq for ValidationError