measurements- Optional. An object containing standard/custom measurements with keys signifying the name of the measurement.
- Standard measurement keys currently supported are from the following list taken from here.
Copied
[
// Web
"fp",
"fcp",
"lcp",
"fid",
"cls",
"ttfb",
"ttfb.requesttime",
// Mobile
"app_start_cold",
"app_start_warm",
"frames_total",
"frames_slow",
"frames_frozen",
// React native
"frames_slow_rate",
"frames_frozen_rate",
"stall_count",
"stall_total_time",
"stall_longest_time",
"stall_percentage"
]
- For the well-known measurements listed above, Sentry automatically infers units. Custom measurements need units to be specified; if the units are missing, Relay will set them to
"none"as a default. The full list of supported units is specified on Relay'sMetricUnit. Sentry's event ingestion supports arbitrary custom units, but many SDKs will not expose a generic user-defined unit interface.
Copied
{
"measurements": {
"lcp": { "value": 100 },
"fp": { "value": 123 },
"my.custom.metric": { "value": 456, "unit": "millisecond" }
}
}
Was this helpful?
Help improve this content
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").
Our documentation is open source and available on GitHub. Your contributions are welcome, whether fixing a typo (drat!) or suggesting an update ("yeah, this would be better").