Struct Challenge 

pub struct Challenge {
    pub code: u16,
    pub realm: Option<String>,
    pub nonce: Option<Vec<u8>>,
}

A parsed Binding Error Response (SPEC.md §14.9). realm/nonce are None when the response simply did not carry that attribute — parse_challenge never errors for a missing optional attribute; only a message-level failure (wrong type, wrong txid, truncated) is an Err.

Fields

code: u16

The ERROR-CODE class+number (400/401/438, or 0 if the response carried none at all).

realm: Option<String>

The REALM attribute’s UTF-8 value, if present and valid UTF-8.

nonce: Option<Vec<u8>>

The NONCE attribute value EXACTLY as carried (base64url text), if present.

Trait Implementations

impl Clone for Challenge

fn clone(&self) -> Challenge

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Challenge

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

Formats the value using the given formatter.

impl Eq for Challenge

impl PartialEq for Challenge

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Challenge