ID Generation (IDGen)

Overview

DIGIT's IDGen service is used to generate unique IDs (like registration numbers or application numbers) for your application. Each application (like Birth Registration, Property, Trade License, etc.) needs unique IDs. IDGen helps generate those IDs in a specific format using configurations from the Master Data Management Service.

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Configure IDGen

1

Configure ID format in MDMS

• Add your ID format in the IdFormat master data (usually inside your MDMS repo):

  Refer to the link here for details.

{
  "format": "PB-BTR-[cy:yyyy-MM-dd]-[SEQ_EG_BTR_ID]",
  "idname": "btr.registrationid"
}

Here -

• format: Controls the structure of the generated ID.

• idname: Unique identifier used to reference this format in your application. After adding, restart both the IDGen and MDMS services.

2

Port forward the IDGen Service

To access IDGen locally, forward its port:

kubectl port-forward <IDGEN_SERVICE_POD_NAME> 8285:8080

Now IDGen is available at: http://localhost:8285/

You can also run the IDGen service locally and set the format in application.properties if the DIGIT environment is unavailable.

3

Test the IDGen Format

🔍 Check if the ID generated matches the format you added. If not, check the MDMS config and logs.

Run this curl to test that your format is set up correctly:

curl --location --request POST 'http://localhost:8285/egov-idgen/id/_generate' \
--header 'Content-Type: application/json' \
--data-raw '{
  "RequestInfo": {
    "authToken": "REPLACE_WITH_TOKEN",
    "userInfo": {
      "id": 23299,
      "uuid": "e721639b-c095-40b3-86e2-acecb2cb6efb",
      "userName": "9337682030",
      "name": "Abhilash Seth",
      "type": "EMPLOYEE",
      "mobileNumber": "9337682030",
      "emailId": "[email protected]",
      "roles": [{
        "id": 281,
        "name": "Employee"
      }]
    }
  },
  "idRequests": [{
    "tenantId": "pg.citya",
    "idName": "pgr.servicerequestid"
  }]
}

4

Integrate IDGen into your application

In your service (e.g., BirthApplicationEnrichment), call IDGen like this:

public void enrichBirthApplication(BirthRegistrationRequest request) {


    List<String> idList = idgenUtil.getIdList(
        request.getRequestInfo(),
        request.getBirthRegistrationApplications().get(0).getTenantId(),
        "btr.registrationid", "", 
        request.getBirthRegistrationApplications().size());


    int index = 0;


    for (BirthRegistrationApplication application : request.getBirthRegistrationApplications()) {


        // Set audit details
        AuditDetails auditDetails = AuditDetails.builder()
            .createdBy(request.getRequestInfo().getUserInfo().getUuid())
            .createdTime(System.currentTimeMillis())
            .lastModifiedBy(request.getRequestInfo().getUserInfo().getUuid())
            .lastModifiedTime(System.currentTimeMillis())
            .build();
        application.setAuditDetails(auditDetails);


        // Set UUID for application
        application.setId(UUID.randomUUID().toString());


        // Set generated application number
        application.setApplicationNumber(idList.get(index++));


        // Set registration ID in address
        application.getAddress().setApplicationNumber(application.getId());


        // Set UUID for address
        application.getAddress().setId(UUID.randomUUID().toString());
    }
}

5

Add Properties in application.properties

Ensure the following config is added to your app: properties

# IDGen Configuration

egov.idgen.host=http://localhost:8285/ # Update with your IDGen service host

egov.idgen.path=egov-idgen/id/_generate

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The IDGen service automatically generates unique application numbers.

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Tips

• Always match idName with what you configured in MDMS.

• Ensure MDMS and IDGen are restarted after changes.

• Log or debug the IDGen call if you get an empty or incorrect response.