Struct HeaderOptions 

pub struct HeaderOptions {
    pub memo: Option<String>,
    pub metadata: Option<Vec<u8>>,
    pub expire: Option<ExpireOptions>,
    pub hold_until: Option<HoldUntilOptions>,
    pub authorities: Option<Vec<String>>,
}

Optional transaction header fields for advanced transaction control.

These fields are included in the transaction envelope submitted to the V3 API.

• memo: Human-readable memo text
• metadata: Binary metadata bytes (hex-encoded in the envelope)
• expire: Transaction expiration time
• hold_until: Scheduled execution at a specific minor block
• authorities: Additional signing authorities

Fields

memo: Option<String>

Human-readable memo text

metadata: Option<Vec<u8>>

Binary metadata bytes

expire: Option<ExpireOptions>

Transaction expiration options

hold_until: Option<HoldUntilOptions>

Hold-until (delayed execution) options

authorities: Option<Vec<String>>

Additional signing authorities (list of authority URLs)

Trait Implementations

impl Clone for HeaderOptions

fn clone(&self) -> HeaderOptions

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for HeaderOptions

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

Formats the value using the given formatter.

impl Default for HeaderOptions

fn default() -> HeaderOptions

Returns the “default value” for a type.