checkIDVUserBiometricTemplateStatus

🔍 Overview

The checkIDVUserBiometricTemplateStatus API is used to determine whether a user's biometric template is already stored on the REL-ID server.
It helps developers decide whether to initiate the biometric opt-in workflow or proceed with biometric-based authentication.

The corresponding event onIDVCheckUserBiometricTemplateStatus provides the result of this check.

🖥️ Recommended Screen

The app should display a loading or biometric status check screen while the API call is being processed.
Once the event is received:

If the template is present: Navigate user to biometric features or allow opt-out.
If the template is absent: Prompt user to opt in for biometric enrollment.

🔁 API to Check Biometric Template

✳️ `checkIDVUserBiometricTemplateStatus`

Initiates the check for a stored biometric template on the server.

🧠 React Native

RdnaClient.checkIDVUserBiometricTemplateStatus((response) => {});

🐦 Flutter

rdna.checkIDVUserBiometricTemplateStatus();

🌐 Cordova

com.uniken.rdnaplugin.RdnaClient.checkIDVUserBiometricTemplateStatus(successCallback, errorCallback);

📱 Native iOS

(RDNAError *)checkIDVUserBiometricTemplateStatus;

🤖 Native Android

RDNA.RDNAError checkIDVUserBiometricTemplateStatus();

🎯 Event: `onIDVCheckUserBiometricTemplateStatus`

Triggered as a result of checkIDVUserBiometricTemplateStatus.
Returns user's biometric template status in a structured payload.

🧾 Sample Payload

{
  "userID": "user123",
  "idvResponse": "{"status_code":100,"status_message":"Template is present","result":true}",
  "status": {
    "statusCode": 100,
    "statusMessage": "Template is present"
  },
  "error": {
    "longErrorCode": 0,
    "shortErrorCode": 0,
    "errorString": "Success"
  }
}

🧷 Field Descriptions

Field	Type	Description
`userID`	string	Unique user ID
`idvResponse`	string	JSON string containing template status
`status`	object	SDK status code and message
`error`	object	Error object with short/long codes and message

📊 `idvResponse` Value Breakdown

status_code	status_message	result	Interpretation
100	Template is present	true	Template exists
600	Template does not exist	false	No template found
400	Unable to process request	—	Server or validation failure
500	Liveness check failed	—	Liveness/anti-spoofing issue

📲 Code Snippets for Event Handling

🧠 React Native

const onIDVCheckUserBiometricTemplateStatus = (response: any) => {
  const result = JSON.parse(response.idvResponse).result;
  if (result) {
    // Template exists
  } else {
    // Prompt biometric opt-in
  }
};

🐦 Flutter

onIDVCheckUserBiometricTemplateStatus(dynamic response) {
  final parsed = jsonDecode(response['idvResponse']);
  if (parsed['result']) {
    // Template present
  } else {
    // No template
  }
}

🌐 Cordova

document.addEventListener('onIDVCheckUserBiometricTemplateStatus', function(response) {
  const result = JSON.parse(response.idvResponse).result;
  // Act based on result
});

📱 Native iOS

- (void)onIDVCheckUserBiometricTemplateStatus:(NSString *)userID 
                                 idvResponse:(NSString *)idvResponse 
                                     status:(RDNARequestStatus *)status 
                                      error:(RDNAError *)error {
    NSData *data = [idvResponse dataUsingEncoding:NSUTF8StringEncoding];
    NSDictionary *json = [NSJSONSerialization JSONObjectWithData:data options:0 error:nil];
    BOOL result = [json[@"result"] boolValue];
}

🤖 Native Android

void onIDVCheckUserBiometricTemplateStatus(String userID, String idvResponse, RDNARequestStatus status, RDNA.RDNAError error) {
    try {
        JSONObject obj = new JSONObject(idvResponse);
        boolean result = obj.getBoolean("result");
    } catch (JSONException e) {
        e.printStackTrace();
    }
}

🚫 Error Codes and Developer Action

Code	Message	Developer Action
100	Template is present	Proceed to authentication or opt-out
600	Template not found	Trigger biometric opt-in flow
400	Request could not be parsed	Show retry or contact support
500	Liveness check failed	Prompt retry or switch to fallback auth

✅ Developer Response Flow

Outcome	Suggested Developer Action
Template Present	Offer biometric services or manage settings
No Template	Trigger `initiateIDVBiometricOptIn()`
Error	Show error UI and offer retry

🔁 Next API to Call Based on Outcome

Event Outcome	Suggested Follow-up API
result = false (no template)	`initiateIDVBiometricOptIn()`
result = true (template exists)	Proceed to `initiateIDVServerBiometricAuthentication()` or settings
Error	Retry or fallback authentication

Updated 6 months ago