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Returns the resident's readings from Signals, one data point per reading, in the same shape as `GET /v1/slim/trends/graphs`. Use it for the live part of a chart, or to look at any day of the last 14. **Auth:** bearer token. The caller must be a practitioner, an admin or a System Owner, and needs `Organization:read`, `Device:read`, `Patient:read` and `DocumentReference:read`. **Scope:** the resident must be in the caller's project or one of its sub-projects (not its parent). A resident outside that scope answers `404`, the same as one that does not exist. ## Behaviour - The chart covers exactly `[startTime, endTime]`. Unlike `/graphs`, it does not snap to monitoring days. - Every reading in the window comes back as Signals recorded it, oldest first: one data point per reading, at the reading's own time, with its own value. Nothing is bucketed or averaged, and no empty points are added between readings, so a silent device shows as a stretch with no points. A reading with no numeric value comes back with `data: null`. - The response grows with the device's cadence: a day of readings every 30 seconds is about 2,900 points per graph type. - The readings are the resident's, whatever device they wear now: a resident whose device was unassigned or moved to someone else, or who was discharged, still gets every reading Signals holds for them in the window. A resident who takes over a device gets only the readings sent after they took it. - Readings are charted under one key: the resident's most recently assigned device, keyed as on `/graphs`. A resident with no device now is charted under the device they wore last, so the key does not change when the device is taken away, and a resident who never wore one under `Patient/<id>`. Signals readings carry no device, so a resident whose device changed inside the window shows one key here where `/graphs` shows one per device. - Threshold and baseline values are the same as `/graphs`. `stats` are computed over every reading in the window. - Every graph type in the table below can be charted. Only `heartRate` and `respiratoryRate` carry threshold and baseline values. Each point carries the limit in force at its own time, as on `/graphs`, so the lines step where a limit changed inside the window. - `startTime` must not be after `endTime`, the window may span at most 24 hours, and `startTime` must not be more than 14 days ago. A request that breaks one of these fails validation. - Readings are charted by when they were observed, or by when Signals stored them when no observed time exists. Late-arriving readings are included. - A graph type with no readings in the window is `{}`. - If Signals cannot be reached, does not answer within 12 seconds, or holds more readings than one request can page through, the route returns `503` with `error: "signals_unavailable"` and a `retryAfterSec` value, rather than a partial or empty chart. - Results are cached for up to 15 seconds. Both request times are rounded down to that interval, and the readings returned are those of the rounded window, so a repeated poll can show a window up to 15 seconds old. A result over 128 KB (most full days) is not cached. - A chart reads this once per page load. Each caller may make 20 requests a minute; past that the route returns `429` with `Retry-After`. When too many realtime reads are already running on the server, it returns `503` with `error: "signals_unavailable"` and `retryAfterSec` at once, before reading anything. ## Graph types Each type charts every Signals reading recorded under one of its codes. The names are the dashboard telemetry's, so pulse rate by pulse oximetry is `pulseRate` and never part of `heartRate`. | `graphType` | Codes | | ------------------------ | ---------------------------------------------------------------- | | `heartRate` | `8867-4`, `43149-4` | | `respiratoryRate` | `9279-1` | | `oxygenSaturation` | `59408-5`, `2708-6` | | `pulseRate` | `8889-8` (heart rate by pulse oximetry) | | `perfusionIndex` | `61006-3`, `PI` (Kinderspitex's own vital code, not LOINC) | | `bodyTemperature` | `8310-5` | | `systolicBloodPressure` | `8480-6` | | `diastolicBloodPressure` | `8462-4` | | `heartRateVariability` | `80404-7` | ## Example cURL request ```bash curl -X GET \ 'https://api.sandbox.ovok.com/v1/slim/trends/realtime?patientId=c3499c27-2973-0a7f-807e-fb8676a92dcb&startTime=2026-01-01T12:00:00Z&endTime=2026-01-02T12:00:00Z&graphType=heartRate,respiratoryRate' \ -H 'Authorization: Bearer eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJpYXQiOjE3NjcyNjg4MDAsImV4cCI6MTc2NzI3MjQwMH0.Ql3B_ztDvctlyZ2z0vp4sl3ExXRQGkzmxdmTAqxNzZk' ```