Trait opentelemetry::sdk::export::trace::SpanExporter[−][src]

pub trait SpanExporter: Send + Debug {
    fn export<'life0, 'async_trait>(
        &'life0 mut self, 
        batch: Vec<SpanData>
    ) -> Pin<Box<dyn Future<Output = ExportResult> + Send + 'async_trait>>
    where
        'life0: 'async_trait,
        Self: 'async_trait;

    fn shutdown(&mut self) { ... }
}
This is supported on crate feature trace only.
Expand description

SpanExporter defines the interface that protocol-specific exporters must implement so that they can be plugged into OpenTelemetry SDK and support sending of telemetry data.

The goal of the interface is to minimize burden of implementation for protocol-dependent telemetry exporters. The protocol exporter is expected to be primarily a simple telemetry data encoder and transmitter.

Required methods

Exports a batch of readable spans. Protocol exporters that will implement this function are typically expected to serialize and transmit the data to the destination.

This function will never be called concurrently for the same exporter instance. It can be called again only after the current call returns.

This function must not block indefinitely, there must be a reasonable upper limit after which the call must time out with an error result.

Any retry logic that is required by the exporter is the responsibility of the exporter.

Provided methods

Shuts down the exporter. Called when SDK is shut down. This is an opportunity for exporter to do any cleanup required.

This function should be called only once for each SpanExporter instance. After the call to shutdown, subsequent calls to export are not allowed and should return an error.

This function should not block indefinitely (e.g. if it attempts to flush the data and the destination is unavailable). SDK authors can decide if they want to make the shutdown timeout configurable.

Implementors