Collection Certificate Generator

'collection-certificate-generator' job is used to generate certificates.

Configuration variables:

Variable	Default Value	Purpose
kafka.input.topic	{{env}}.generate.certificate.request	Kafka topic from which messages/events are read to be processed.
kafka.output.failed.topic	{{env}}.generate.certificate.failed	Kafka topic to which message is written when an exception occurs while processing an event.
kafka.output.audit.topic	{{env}}.telemetry.raw	Kakfa topic to which and audit message is written to.
kafka.groupId	{{env}}-certificate-generator-group	Kafka input topic group Id
lms-cassandra.keyspace	sunbird_courses	Cassandra keyspace name
lms-cassandra.course_batch.table	course_batch	Cassandra table used to store batch details of a collection. Batch status, start date , end date , batch enrolment end date, enrolment type (open/invite-only), certificate templates etc are stored in this table.
lms-cassandra.user_enrolments.table	user_enrolments	Cassandra table used to store user enrolment data in a collection of a particular batch. This also holds the consumption progress, enrolment status and issued certificate details
lms-cassandra.sbkeyspace	sunbird	Sunbird Keyspace
lms-cassandra.certreg.table	cert_registry	Cassandra table used to store user certificates (old format)
task.rc.badcharlist	\x00,\\aaa,\aaa,Ø,Ý
service.content.basePath		Content service URL
service.learner.basePath		User-Org service URL
service.enc.basePath		Encryption service base path
service.rc.basePath		Sunbird RC base path
service.rc.entity	TrainingCertificate	variable used to specify sunbird RC API endpoint for certificate
enable.rc.certificate	true	variable used to enable RC certificate generation
enable.suppress.exception	true	Variable used to suppress exception if the signatory list is empty
cloud_storage_base_url		variable to identify the cloud storage base url. Used to replace the base url with variable mentioned in cloud_store_base_path_placeholder while storing to databases
cloud_store_base_path_placeholder	CLOUD_BASE_PATH	relative variable used to replace cloud storage base urls and stored in database
content_cloud_storage_container		cloud storage container name
cloud_storage_cname_url		variable used to replace 'cloud_store_base_path_placeholder' value with cname or cloud storage url while reading data from database.

Sample event:

{
  "eid": "BE_JOB_REQUEST",
  "ets": 1563788371969,
  "mid": "LMS.1563788371969.590c5fa0-0ce8-46ed-bf6c-681c0a1fdac8",
  "actor": {
    "type": "System",
    "id": "Certificate Generator"
  },
  "context": {
    "pdata": {
      "ver": "1.0",
      "id": "org.sunbird.platform"
    }
  },
  "object": {
    "type": "GenerateCertificate",
    "id": "874ed8a5-782e-4f6c-8f36-e0288455901e"
  },
  "edata": {
    "userId": "user001",
    "svgTemplate": "https://ntpstagingall.blob.core.windows.net/user/cert/File-01311849840255795242.svg",
    "templateId": "template_01_dev_001",
    "courseName": "new course may23",
    "data": [
      {
        "recipientName": "Creation ",
        "recipientId": "user001"
      }
    ],
    "name": "100PercentCompletionCertificate",
    "tag": "0125450863553740809",
    "issuer": {
      "name": "Gujarat Council of Educational Research and Training",
      "url": "https://gcert.gujarat.gov.in/gcert/",
      "publicKey": [
        "1",
        "2"
      ]
    },
    "signatoryList": [
      {
        "name": "CEO Gujarat",
        "id": "CEO",
        "designation": "CEO",
        "image": "https://cdn.pixabay.com/photo/2014/11/09/08/06/signature-523237__340.jpg"
      }
    ],
    "criteria": {
      "narrative": "course completion certificate"
    },
    "basePath": "https://dev.sunbirded.org/certs",
    "related": {
      "type": "course",
      "batchId": "0131000245281587206",
      "courseId": "do_11309999837886054415"
    }
  }
}

Source code:

data-pipeline/lms-jobs/credential-generator/collection-certificate-generator at release-5.3.0 · Sunbird-Lern/data-pipelineGitHub