Prometheus Remote Write
Remote Write is Prometheus' push protocol for shipping scraped samples to long-term storage and analysis backends (Cortex, Thanos, Mimir, VictoriaMetrics, InfluxDB, Datadog, etc.). Snappy-compressed protocol-buffer payloads POSTed over HTTP. Version 1.0 is stable and widely implemented; version 2.0 (experimental specification) adds native histograms, metadata-per-series, created timestamps, and tighter validation.