---
name: "saveBloodPressureData"
mode: "kit"
versionRequirements:
  - { name: "HealthKit", version: "5.18.0" }
  - { name: "@ray-js/ray", version: "1.6.17" }
platform:
  - "iOS"
async: true
title: "health.saveBloodPressureData - Write blood pressure data [iOS only]"
---

## saveBloodPressureData

> [VERSION] HealthKit >= 5.18.0 | @ray-js/ray >= 1.6.17

> [PLATFORM] iOS

> ⚡ **Supports Promise** — Returns a Promise when success / fail / complete callbacks are omitted.

### Description

Write blood pressure data (systolic, diastolic, and start/end times) [iOS only]

### Parameters

| Property | Type | Required | Default | Since | Description |
| --- | --- | --- | --- | --- | --- |
| `systolic` | `number` | Yes | - | `5.18.0` | Systolic |
| `diastolic` | `number` | Yes | - | `5.18.0` | Diastolic |
| `startTime` | `number` | Yes | - | `5.18.0` | Start time, timestamp in seconds |
| `endTime` | `number` | Yes | - | `5.18.0` | End time, timestamp in seconds |
| `complete` | `() => void` | No | - | - | Completion callback (executed on both success and failure) |
| `success` | `() => void` | No | - | - | Callback on successful API call |
| `fail` | `(params: Object) => void` ↓see below | No | - | - | Failure callback |

#### fail callback parameters

| Property | Type | Description |
| --- | --- | --- |
| `errorMsg` | `string` | Error message |
| `errorCode` | `string \| number` | Error code |
| `innerError` | `Object` | Error extension |

##### fail(params).innerError properties

| Property | Type | Description |
| --- | --- | --- |
| `errorCode` | `string \| number` | Error extension code |
| `errorMsg` | `string` | Error extension message |


### Error Codes

| Error Code | Error Message |
| --- | --- |
| `1` | AppleHealthParamsError |
| `2` | AppleHealthNoPermission |

### Examples

#### Basic usage

```tsx
import { health } from '@ray-js/ray'

const { saveBloodPressureData } = health;

saveBloodPressureData({
  systolic: 120,
  diastolic: 80,
  startTime: 1700000000,
  endTime: 1700000060,
  success: () => {
    console.log('saveBloodPressureData success');
  },
  fail: (error) => {
    console.log('saveBloodPressureData fail', error.errorMsg);
  },
});
```