How to integrate the biometric device api in erpnext

How to integrate the biometric device api for employee punch in and out with erpnext

If you are looking for using the existing feature, you can use this service ErpNext Integration which pushes the attendance data to the server on real time. If you are looking for developing your own module, you can refer the api document Universal Biometric Web API | ZkTeco Push SDK | Cams Biometrics