Struct LangfuseConfigBuilder 

pub struct LangfuseConfigBuilder { /* private fields */ }

Builder for LangfuseConfig.

Implementations

impl LangfuseConfigBuilder

pub fn public_key(self, key: impl Into<String>) -> Self

Set the Langfuse public key (required).

pub fn secret_key(self, key: impl Into<String>) -> Self

Set the Langfuse secret key (required).

pub fn base_url(self, url: impl Into<String>) -> Self

Set the Langfuse API base URL.

pub fn timeout(self, timeout: Duration) -> Self

Set the HTTP request timeout.

pub fn flush_at(self, count: usize) -> Self

Set the number of events to buffer before flushing.

pub fn flush_interval(self, interval: Duration) -> Self

Set the maximum interval between flushes.

pub fn sample_rate(self, rate: f64) -> Self

Set the sampling rate (0.0–1.0).

pub fn environment(self, env: impl Into<String>) -> Self

Set the environment tag.

pub fn release(self, release: impl Into<String>) -> Self

Set the release tag.

pub fn debug(self, debug: bool) -> Self

Enable or disable debug logging.

pub fn tracing_enabled(self, enabled: bool) -> Self

Enable or disable tracing.

pub fn mask(self, f: impl Fn(Value) -> Value + Send + Sync + 'static) -> Self

Set a mask function to transform JSON values before storing as span attributes.

pub fn additional_headers(self, headers: HashMap<String, String>) -> Self

Set additional HTTP headers to include in all requests.

pub fn max_retries(self, retries: usize) -> Self

Set the maximum number of retries for HTTP requests.

pub fn media_upload_thread_count(self, count: usize) -> Self

Set the number of threads for media uploads.

pub fn io_capture_enabled(self, enabled: bool) -> Self

Enable or disable I/O capture for the observe decorator.

pub fn should_export_span( self, f: impl Fn(&SpanData) -> bool + Send + Sync + 'static, ) -> Self

Set a filter function to decide whether a span should be exported.

pub fn build(self) -> Result<LangfuseConfig, ConfigError>

Build the configuration, returning an error if required fields are missing.

Trait Implementations

impl Default for LangfuseConfigBuilder

fn default() -> LangfuseConfigBuilder

Returns the “default value” for a type.