Enum ClaudeStreamEvent 

pub enum ClaudeStreamEvent {
    System {
        session_id: String,
        model: String,
        tools: Vec<Value>,
    },
    Assistant {
        message: AssistantMessage,
        usage: Option<Usage>,
    },
    User {
        message: UserMessage,
    },
    Result {
        duration_ms: u64,
        total_cost_usd: f64,
        num_turns: u32,
        is_error: bool,
    },
}

Events emitted by Claude’s --output-format stream-json.

Each line of output is a JSON object with a type field that determines the event variant.

Variants

System

Session initialization - first event emitted.

Fields

session_id: String

model: String

tools: Vec<Value>

Assistant

Claude’s response - contains text or tool invocations.

Fields

message: AssistantMessage

usage: Option<Usage>

User

Tool results returned to Claude.

Fields

message: UserMessage

Result

Session complete - final event with stats.

Fields

duration_ms: u64

total_cost_usd: f64

num_turns: u32

is_error: bool

Trait Implementations

impl Clone for ClaudeStreamEvent

fn clone(&self) -> ClaudeStreamEvent

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ClaudeStreamEvent

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ClaudeStreamEvent

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ClaudeStreamEvent

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for ClaudeStreamEvent

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 ClaudeStreamEvent