Struct LayerBuilder 

pub struct LayerBuilder { /* private fields */ }

Tracing subscriber layer API. Tracing subscriber layer API. Tracing subscriber layer API. Builder for Layer.

Implementations

impl LayerBuilder

pub fn endpoint(self, endpoint: Url) -> Self

Sets the OTLP/gRPC endpoint, for example http://127.0.0.1:4317.

pub fn token(self, token: SecretString) -> Self

Sets the bearer token sent to the observability server.

pub fn source(self, source: SourceId) -> Self

Sets the source identity attached to every exported batch.

pub fn batch_size(self, batch_size: usize) -> Self

Sets the maximum records per export request.

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

Sets the periodic flush interval.

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

Sets the timeout for each export or replay attempt, including requested flushes.

pub fn queue_dir(self, queue_dir: PathBuf) -> Self

Sets the directory used for offline protobuf log batches.

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

Sets a deterministic sample rate in the inclusive range 0.0..=1.0.

pub fn compression(self, encoding: CompressionEncoding) -> Self

Compresses exported gRPC messages with gzip or zstd.

Requests are uncompressed by default for compatibility with older receivers.

pub fn tls_config(self, config: ClientTlsConfig) -> Self

Sets HTTPS transport options, including custom CA roots and mutual TLS.

HTTPS endpoints use system trust roots by default. A custom configuration can add a private CA, override the expected domain, or supply a client identity.

pub fn build(self) -> Result<Layer, LayerError>

Builds the layer and spawns its background exporter on the current Tokio runtime.

Errors

Returns LayerError::MissingEndpoint, LayerError::MissingToken, LayerError::MissingSource, or LayerError::MissingQueueDir if the corresponding builder field was not set.

Trait Implementations

impl Clone for LayerBuilder

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for LayerBuilder

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

Formats the value using the given formatter.

impl Default for LayerBuilder

fn default() -> Self

Returns the “default value” for a type.