# `eas channel:insights` JSON schema

Complete JSON output shape returned by `eas channel:insights --channel <name> --runtime-version <version> --json --non-interactive`.

```json
{
  "channel": "production",
  "runtimeVersion": "1.0.6",
  "timespan": { "start": "...", "end": "...", "daysBack": 7 },
  "embeddedUpdateTotalUniqueUsers": 2401,
  "otaTotalUniqueUsers": 8312,
  "mostPopularUpdates": [
    {
      "rank": 1,
      "groupId": "abc123",
      "message": "Fix checkout crash",
      "platform": "ios",
      "totalUniqueUsers": 4210
    }
  ],
  "cumulativeMetricsAtLastTimestamp": [
    { "id": "...", "label": "Embedded update", "data": 12345 },
    { "id": "...", "label": "Embedded update failed installs", "data": 0 }
  ],
  "uniqueUsersOverTime": { "labels": ["..."], "datasets": [ { "id": "...", "label": "...", "data": [100, 200] } ] },
  "cumulativeMetricsOverTime": { "labels": ["..."], "datasets": [ { "id": "...", "label": "...", "data": [10, 20] } ] }
}
```

## Field reference

| Path | Meaning |
|---|---|
| `channel` | The channel queried. |
| `runtimeVersion` | The runtime version filter used. Channel insights are always scoped to a single runtime. |
| `timespan.start` / `.end` / `.daysBack` | Window bounds (UTC ISO) and size in days. |
| `embeddedUpdateTotalUniqueUsers` | Distinct users running the embedded (binary-bundled) build in the window. |
| `otaTotalUniqueUsers` | Sum of `totalUniqueUsers` across `mostPopularUpdates`. May undercount if more than top-N updates are active (see caveat below). |
| `mostPopularUpdates[]` | Top-N updates ranked by `totalUniqueUsers`. Each entry has `rank`, `groupId`, `message`, `platform`, `totalUniqueUsers`. |
| `cumulativeMetricsAtLastTimestamp[]` | Snapshot totals at the end of the window, labelled (e.g., "Embedded update", "Embedded update failed installs"). |
| `uniqueUsersOverTime` | Chart-shaped object with `labels` (dates) and `datasets` for plotting unique users over time. |
| `cumulativeMetricsOverTime` | Chart-shaped object for plotting cumulative metrics over time. |

## Caveats

- `otaTotalUniqueUsers` is a sum of `mostPopularUpdates[].totalUniqueUsers`. If more OTA updates are active than the top-N the server returns, this figure undercounts true OTA reach.
- A user running the same publish on both iOS and Android may be counted on each platform. Don't treat `uniqueUsers` as cross-platform-deduped.