Enum StreamEventPayload 

pub enum StreamEventPayload {
    MessageStart {
        message: Value,
    },
    ContentBlockStart {
        index: u64,
        content_block: ContentBlockInfo,
    },
    ContentBlockDelta {
        index: u64,
        delta: Delta,
    },
    ContentBlockStop {
        index: u64,
    },
    MessageDelta {
        delta: Value,
        usage: Option<Value>,
    },
    MessageStop,
    Unknown,
}

The inner event payload from the Anthropic streaming API.

This mirrors the Server-Sent Events that the Anthropic API emits.

Variants

MessageStart

Signals the start of a new message, includes message metadata.

Fields

message: Value

The message object with id, role, model, etc.

ContentBlockStart

Signals the start of a content block at the given index.

Fields

index: u64

Zero-based index of this content block.

content_block: ContentBlockInfo

The initial content block (type, and any initial data).

ContentBlockDelta

An incremental update to the content block at the given index.

Fields

index: u64

Zero-based index of the content block being updated.

delta: Delta

The delta payload.

ContentBlockStop

Signals that the content block at the given index is complete.

Fields

index: u64

Zero-based index of the completed content block.

MessageDelta

An update to the top-level message (e.g. stop_reason, usage).

Fields

delta: Value

The delta payload.

usage: Option<Value>

Updated usage statistics.

MessageStop

Signals that the entire message is complete.

Unknown

Catch-all for forward-compatibility with unknown event types.

Trait Implementations

impl Clone for StreamEventPayload

fn clone(&self) -> StreamEventPayload

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for StreamEventPayload

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for StreamEventPayload

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for StreamEventPayload

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

where __S: Serializer,

Serialize this value into the given Serde serializer.