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# telemetryIdFacets

> Returns build and session identifiers with first-seen event timestamps.



**query** `telemetryIdFacets(view: TelemetryView!): TelemetryIdFacets!`

## Arguments

**`view`**: `TelemetryView!` (required)

The view whose retained events determine the available identifiers.

## Returns

`TelemetryIdFacets!`

**`buildIds`**: `[TelemetryIdFacet!]!`

Build identifiers with their earliest retained event times.

---

**`sessionIds`**: `[TelemetryIdFacet!]!`

Session identifiers with their earliest retained event times.



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