mockdata.kt

 fun mockMetadata(metadata: SIDMetadata, request: SelfieVerificationRequest,  base64: String = "") {
        val userIdInfo = metadata.sidUserIdInfo
        userIdInfo.idNumber = "0000000004"
//        userIdInfo.idNumber =  request.documentId
//                .replace("[0-9]".toRegex(), "0")
//                .replace("0\$".toRegex(), "4")
        if (base64.isNotEmpty()) {
          //  metadata.partnerParams.addtionalValues[request.documentType.mockPictureTag()] = selfieFile.toBase64String()
            metadata.partnerParams.addtionalValues[request.documentType.mockPictureTag()] = base64
            Log.d("Base 64 Image", base64)
        }
        //metadata.partnerParams.addtionalValues["id_number"] = request.documentId

        metadata.partnerParams.addtionalValues[request.documentType.mockFirstNameTag()] = request.firstName
        metadata.partnerParams.addtionalValues[request.documentType.mockLastNameTag()] = request.lastName
        metadata.partnerParams.addtionalValues[request.documentType.mockFullNameTag()] = "${request.firstName} ${request.lastName}"
        metadata.partnerParams.addtionalValues[request.documentType.mockBirthDateTag()] = request.birthDate
    }

smile.kt

    private fun submitToNetworkRequest(data: SelfieVerificationRequest){
        Log.d("Tag is this ","Tag is check 2 ${data.tag}")
        print("Tag is check 1 ${data.tag}")
        val baseB4 = binding.base64Image.text.toString()
       // val baseB4 =
        if (baseB4.isEmpty()){
                Toast.makeText(this, "Enter base 64 image in the field provided", Toast.LENGTH_LONG).show()
            return
        }
        Log.d("SELFIE-2", data.tag)

       
        val request = SIDNetworkRequest(this)
        request.setOnUpdateListener { progress ->
      
           /* emitter.onNext(
                    if (progress < 100) SelfieVerificationStatus.UploadingSelfie(progress)
                    else SelfieVerificationStatus.Processing)*/
        }
        request.set0nErrorListener { exception ->
       
        }
        request.setOnEnrolledListener { response ->
            synchronizeWithBackend(response)
       
        }

        request.submit(SIDConfig.Builder(this)
                .setMode(SIDConfig.Mode.ENROLL)
                .setJobType(1)
                .setValidateIdInfo(true)
                .setRetryOnfailurePolicy(RetryOnFailurePolicy(3, TimeUnit.SECONDS.toMillis(15)))
                .setSmileIdNetData(SIDNetData(this,
                        if (component.presenter.isReleaseApi) SIDNetData.Environment.PROD
                        else SIDNetData.Environment.TEST))
                .setSIDMetadata(data.toMetadata(baseB4))
                .build(data.tag))
    }

toMetadata.kt

 private fun SelfieVerificationRequest.toMetadata(baseB4: String = ""): SIDMetadata {

        val metadata = SIDMetadata()

        val userIdInfo = metadata.sidUserIdInfo
        userIdInfo.firstName = firstName
        userIdInfo.lastName = lastName
        userIdInfo.email = email
        userIdInfo.country = residence.displayCountry
        userIdInfo.countryCode = residence.countryPrefix
        userIdInfo.idType = documentType.raw

        if (component.presenter.isReleaseApi) {
            userIdInfo.idNumber = documentId
        } else {
           // userIdInfo.idNumber = documentId
            SmileTestData.mockMetadata(metadata, this, base64 = baseB4)
        }
        return metadata
    }