harmony 鸿蒙OAID Service

2023-10-30
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OAID Service

When to Use

The Open Anonymous Device Identifier (OAID) is a non-permanent device identifier. The OAID service provides personalized ads for users while protecting their personal data privacy. It can also interact with third-party tracking platforms to provide conversion attribution analysis for advertisers.

No matter whether you are running a media application, an ad platform, or a tracking platform, you can obtain OAID information from devices. The OAID information can be used to recommend personalized ads to users and attribute ad conversions.

Available APIs

API	Description
getOAID():Promise<string>	Obtains an OAID. This API uses a promise to return the result.
getOAID(callback: AsyncCallback<string>): void	Obtains an OAID. This API uses an asynchronous callback to return the result.
resetOAID(): void	Resets an OAID. This is a system API.

How to Develop

In the module.json5 file of the module, configure the ohos.permission.APP_TRACKING_CONSENT permission. The sample code is as follows:
```
{
 "module": {
   "requestPermissions": [
     {
     "name": "ohos.permission.APP_TRACKING_CONSENT"
     }
   ]
 }
}
```
Request authorization from the user by displaying a dialog box when the application is started. The sample code is as follows: “` import abilityAccessCtrl from ‘@ohos.abilityAccessCtrl’; import { BusinessError } from ‘@ohos.base’; import hilog from ‘@ohos.hilog’;

private requestOAIDTrackingConsentPermissions2(context: common.Context): void { // Display a dialog box when the page is displayed to request the user to grant the ad tracking permission. const atManager: abilityAccessCtrl.AtManager = abilityAccessCtrl.createAtManager(); try { atManager.requestPermissionsFromUser(context, [“ohos.permission.APP_TRACKING_CONSENT”]).then((data) => { if (data.authResults[0] == 0) { hilog.info(0x0000, ‘testTag’, ‘%{public}s’, ‘request permission success’); } else { hilog.info(0x0000, ‘testTag’, ‘%{public}s’, user rejected); } }).catch((err: BusinessError) => { hilog.error(0x0000, ‘testTag’, ‘%{public}s’, request permission failed, error message: ${err.message}); }) } catch(err: BusinessError) { hilog.error(0x0000, ‘testTag’, ‘%{public}s’, catch err->${JSON.stringify(err)}); } }

   
3. Call **getOAID()** to obtain OAID information. The sample code is as follows:

import identifier from ‘@ohos.identifier.oaid’; import hilog from ‘@ohos.hilog’; import { BusinessError } from ‘@ohos.base’;

try { identifier.getOAID((err: BusinessError, data) => { if (err.code) { hilog.info(0x0000, ‘testTag’, ‘%{public}s’, get oaid failed, message: ${err.message}); } else { const oaid: string = data; hilog.info(0x0000, ‘testTag’, ‘%{public}s’, get oaid by callback success); } }); } catch (err: BusinessError) { hilog.error(0x0000, ‘testTag’, ‘get oaid catch error: %{public}d %{public}s’, err.code, err.message); }

   
4. Call **setOAID()** (a system API) to reset the OAID information. The sample code is as follows:

import identifier from ‘@ohos.identifier.oaid’; import hilog from ‘@ohos.hilog’; import { BusinessError } from ‘@ohos.base’;

// Reset the OAID. try { identifier.resetOAID(); } catch (err: BusinessError) { hilog.error(0x0000, ‘testTag’, ‘reset oaid catch error: %{public}d %{public}s’, err.code, err.message); } “`