Struct TracedChat 

pub struct TracedChat<'c, C: Config> { /* private fields */ }

A wrapper around async-openai’s Chat that automatically creates Langfuse generation spans for every chat completion API call.

Implementations

impl<'c, C: Config> TracedChat<'c, C>

pub fn new(chat: Chat<'c, C>) -> Self

Wrap an existing Chat instance with Langfuse tracing.

pub async fn create( &self, request: CreateChatCompletionRequest, ) -> Result<CreateChatCompletionResponse, OpenAIError>

Create a chat completion with automatic Langfuse tracing.

A generation span is created before the request and ended after the response is received. Model, usage, input, and output are recorded automatically.

Errors

Returns the underlying OpenAIError if the API call fails.

pub async fn create_stream( &self, request: CreateChatCompletionRequest, ) -> Result<TracedStream, OpenAIError>

Create a streaming chat completion with automatic Langfuse tracing.

A generation span is created before the request. The returned TracedStream accumulates content from delta chunks and records completion_start_time on the first chunk. The span is finalized when the stream ends or is dropped.

Errors

Returns the underlying OpenAIError if the API call fails.

Trait Implementations

impl<C: Config> Debug for TracedChat<'_, C>

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

Formats the value using the given formatter.