Struct Message 

pub struct Message {

    pub id: u64,
    pub channel_id: u64,
    pub sender: String,
    pub recipient: Option<String>,
    pub content: String,
    pub message_type: MessageType,
    pub timestamp: DateTime<Utc>,
    pub metadata: HashMap<String, String>,
    pub signature: Option<String>,
    pub acknowledged_by: Vec<String>,
    pub status: MessageStatus,
    pub priority: MessagePriority,
    pub reply_to: Option<u64>,
    pub correlation_id: Option<String>,
    pub thread_id: Option<String>,
    pub comm_timestamp: CommTimestamp,
    pub rich_content_json: Option<String>,
    pub comm_id: Option<CommId>,
    pub receipt_id: Option<String>,
}

A single message in the communication system.

Fields

id: u64

Unique message identifier.

channel_id: u64

Channel this message belongs to.

sender: String

Who sent the message.

recipient: Option<String>

Optional specific recipient (None = all channel participants).

content: String

Message body.

message_type: MessageType

Type of message.

timestamp: DateTime<Utc>

When the message was created (UTC).

metadata: HashMap<String, String>

Arbitrary key-value metadata.

signature: Option<String>

Optional SHA-256 content signature.

acknowledged_by: Vec<String>

Set of participants who have acknowledged this message.

status: MessageStatus

Lifecycle status of this message.

priority: MessagePriority

Priority level of this message.

reply_to: Option<u64>

ID of the message this is a reply to.

correlation_id: Option<String>

Correlation ID for request/response pairing.

thread_id: Option<String>

Thread grouping identifier.

comm_timestamp: CommTimestamp

Causal timestamp with Lamport/vector clocks.

rich_content_json: Option<String>

Rich message content stored as JSON (avoids bincode enum issues). Use MessageContent::from_json_string / to_json_string to convert.

comm_id: Option<CommId>

UUID-based universal identifier (alongside legacy u64 id).

receipt_id: Option<String>

Identity receipt ID for this message (from agentic-identity).

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 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.