fn pipeline_name_from_headers(headers: &HeaderMap) -> Option<String>Expand description
Extracts the pipeline name from the request headers.
Both x-greptime-pipeline-name and the deprecated x-greptime-log-pipeline-name
are accepted, matching the headers already honored by the OTLP/Elasticsearch/Splunk
log ingestion endpoints. If both are present, the non-deprecated
x-greptime-pipeline-name takes precedence. Empty header values are ignored so that
they fall back to the pipeline_name query parameter.