Struct Response 

pub struct Response {
    pub llm_response: LlmResponse,
    pub metadata: Option<Metadata>,
    pub upstream_headers: HeaderMap,
}

A response an algorithm returns: the LlmResponse (streamed or aggregate) plus optional correlation Metadata.

Not Clone — llm_response may own a live stream.

Fields

llm_response: LlmResponse

The neutral model response — a chunk stream or the buffered aggregate.

metadata: Option<Metadata>

Correlation metadata carried through the response.

upstream_headers: HeaderMap

Upstream HTTP response headers preserved from the LLM backend (or proxy). Populated by the LLM client; consumers (e.g. switchyard-server) may forward these to the downstream client for observability.

Implementations

impl Response

pub fn selected_model(&self) -> Option<&str>

Returns the model recorded by a buffered response.

Returns None for a live stream because inspecting its MessageStart event would require consuming the stream.

pub fn served_model(&self) -> Option<&ModelId>

Returns the Switchyard target that successfully served this response.

Unlike Self::selected_model, this is available for streamed responses because the client records the target when it receives the stream handle.

pub fn set_served_model(&mut self, model: &ModelId)

Records the Switchyard target that successfully served this response.