Function get_protocol

pub fn get_protocol() -> Protocol

Determines the OpenTelemetry protocol to use based on the OTEL_EXPORTER_OTLP_PROTOCOL environment variable.

Returns

A Protocol enum value indicating which protocol format to use:

• Protocol::HttpBinary if OTEL_EXPORTER_OTLP_PROTOCOL is set to “http/protobuf”
• Protocol::HttpJson if OTEL_EXPORTER_OTLP_PROTOCOL is set to “http/json” or empty/unset

Environment Variables

• OTEL_EXPORTER_OTLP_PROTOCOL: The protocol format to use. Supported values are:
  • “http/protobuf” - Use Protocol Buffers over HTTP
  • “http/json” - Use JSON over HTTP (default)

If an unsupported protocol value is provided, defaults to HTTP JSON with a warning message.