Struct Message 

pub struct Message {
    pub id: MessageId,
    pub timestamp: Timestamp,
    pub subject: Subject,
    pub operation: Operation,
    pub payload: Payload,
    pub metadata: Metadata,
}

The fundamental primitive. Every request, command, event, stream, response, telemetry reading, and error is carried by a Message.

Fields

id: MessageId

Unique identifier.

timestamp: Timestamp

Timestamp.

subject: Subject

Hierarchical routing key.

operation: Operation

The verb of this message.

payload: Payload

Explicitly typed, serde-serialisable payload.

metadata: Metadata

Metadata (correlation, causation, trace, auth, extensions).

Implementations

impl Message

pub fn new( subject_str: &str, operation: Operation, ) -> Result<Self, SubjectError>

Construct a minimal message with the given subject, operation, and unit payload.

Errors

Returns SubjectError if subject_str is not a valid subject.

Trait Implementations

impl Clone for Message

fn clone(&self) -> Message

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Message

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Message

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Message

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

Equality operator ==.

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

Inequality operator !=.

impl Serialize for Message

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Message