Module otel_propagator

• Description
• Data Types
• Function Index
• Function Details

Behaviour and API for propagation of Context.

This module defines the otel_propagator behaviour. Required callback functions: inject/1, extract/2.

Description

An implementation of the otel_propagator behaviour must implement the inject/1 and extract/2 callbacks. Inject is passed a term, for example the Span Context or Baggage, and returns a carrier, such as HTTP headers, to use for propagation in a request.

Extract is passed the carrier, such as HTTP headers, and returns the term that will be set in the Context.

Propagation API Specification: https://github.com/open-telemetry/opentelemetry-specification/blob/master/specification/context/api-propagators.md

Data Types

carrier()

extractor()

injector()

text_map()

text_map_extractor()

text_map_injector()

Function Index

Function Details

text_map_extract/1

text_map_extract(TextMap) -> any()

text_map_inject/1

text_map_inject(TextMap) -> any()