Struct Message 

pub struct Message {
    pub messageId: String,
    pub contextId: Option<String>,
    pub taskId: Option<String>,
    pub role: Role,
    pub parts: Vec<Part>,
    pub metadata: Option<Value>,
    pub extensions: Vec<String>,
    pub referenceTaskIds: Vec<String>,
}

One message exchanged between user and agent — A2A spec §6.3.

Fields

messageId: String

Stable id for this message.

contextId: Option<String>

Conversation/context id grouping related messages.

taskId: Option<String>

Optional task id this message participates in.

role: Role

Author of the message.

parts: Vec<Part>

Parts that make up the message.

metadata: Option<Value>

Free-form metadata.

extensions: Vec<String>

Extension URIs the message uses.

referenceTaskIds: Vec<String>

Tasks this message references but does not own.

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.