Enum StreamResponse 

#[non_exhaustive]
pub enum StreamResponse {
    Task(Task),
    Message(Message),
    StatusUpdate(TaskStatusUpdateEvent),
    ArtifactUpdate(TaskArtifactUpdateEvent),
}

A single event payload in an A2A streaming response.

Externally tagged: serialized as a single-key object ({"task": …}, {"statusUpdate": …}, …) whose camelCase key names the variant. This matches the ProtoJSON encoding of the StreamResponse.payload oneof on the wire — it is not an untagged union, and must not be “corrected” to one without breaking wire compatibility.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Task(Task)

A complete task object (initial response before streaming begins).

Message(Message)

A complete message (returned synchronously for short responses).

StatusUpdate(TaskStatusUpdateEvent)

A task state change event.

ArtifactUpdate(TaskArtifactUpdateEvent)

An artifact delivery event.

Trait Implementations

impl Clone for StreamResponse

fn clone(&self) -> StreamResponse

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamResponse

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StreamResponse

fn deserialize<__D>( __deserializer: __D, ) -> Result<StreamResponse, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StreamResponse

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl TryFrom<StreamResponse> for StreamResponse

type Error = ConvertError

The type returned in the event of a conversion error.

fn try_from( value: StreamResponse, ) -> Result<StreamResponse, <StreamResponse as TryFrom<StreamResponse>>::Error>

Performs the conversion.

impl TryFrom<StreamResponse> for StreamResponse

type Error = ConvertError

The type returned in the event of a conversion error.

fn try_from( value: StreamResponse, ) -> Result<StreamResponse, <StreamResponse as TryFrom<StreamResponse>>::Error>

Performs the conversion.