Struct ValidationError 

pub struct ValidationError {
    pub path: String,
    pub expected: String,
    pub found: String,
    pub message: Option<String>,
    pub error_type: String,
    pub schema_info: Option<SchemaInfo>,
}

Enhanced validation error with detailed schema information

Fields

path: String

JSON path to the field with validation issue

expected: String

Expected schema constraint or value type

found: String

What was actually found in the request

message: Option<String>

Human-readable error message explaining the validation failure

error_type: String

Error classification for client handling (e.g., “type_mismatch”, “required_missing”)

schema_info: Option<SchemaInfo>

Additional context about the expected schema constraints

Implementations

impl ValidationError

pub fn new( path: String, expected: String, found: String, error_type: &str, ) -> Self

Create a new validation error

Arguments

• path - JSON path to the field with validation issue
• expected - Expected schema constraint or value type
• found - What was actually found in the request
• error_type - Error classification (e.g., “type_mismatch”, “required_missing”)

pub fn with_message(self, message: String) -> Self

Add a human-readable error message

pub fn with_schema_info(self, schema_info: SchemaInfo) -> Self

Add detailed schema constraint information

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 From<ValidationError> for FieldError

fn from(error: ValidationError) -> Self

Converts to this type from the input type.

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.