Struct ResultMessage 

pub struct ResultMessage {
    pub subtype: String,
    pub duration_ms: i64,
    pub duration_api_ms: i64,
    pub is_error: bool,
    pub num_turns: i64,
    pub session_id: String,
    pub stop_reason: Option<String>,
    pub total_cost_usd: Option<f64>,
    pub usage: Option<Value>,
    pub result: Option<String>,
    pub structured_output: Option<Value>,
}

Final result message with cost and usage information.

This is the last message received for a query, containing summary statistics.

Fields

• subtype — The result subtype (e.g., "success", "error").
• duration_ms — Total wall-clock duration in milliseconds.
• duration_api_ms — Time spent in API calls in milliseconds.
• is_error — Whether the query resulted in an error.
• num_turns — Number of conversation turns in the query.
• session_id — The session identifier.
• stop_reason — Optional reason for why the turn ended.
• total_cost_usd — Optional total cost in USD.
• usage — Optional token usage breakdown (input_tokens, output_tokens, cache_creation_input_tokens, cache_read_input_tokens).
• result — Optional result text.
• structured_output — Optional structured output if output_format was configured.

Fields

subtype: String

Result subtype.

duration_ms: i64

End-to-end duration in milliseconds.

duration_api_ms: i64

API-only duration in milliseconds.

is_error: bool

Indicates whether execution ended in error.

num_turns: i64

Number of turns performed.

session_id: String

Session identifier.

stop_reason: Option<String>

Optional reason for why the turn ended.

total_cost_usd: Option<f64>

Optional total cost in USD.

usage: Option<Value>

Optional usage summary payload.

result: Option<String>

Optional text result.

structured_output: Option<Value>

Optional structured output payload.

Trait Implementations

impl Clone for ResultMessage

fn clone(&self) -> ResultMessage

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ResultMessage

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ResultMessage

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for ResultMessage

fn eq(&self, other: &ResultMessage) -> 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 ResultMessage

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 ResultMessage