Get Topic & Get Schema Id

topicAndSchema.js

const topicName =  '/event/Your_Custom_event__e';
let schemaId = '';
let schema;
client.GetTopic({ topicName: topicName }, (err, response) => {
  if(err) {
    //throw error
  }else { //get the schema information
    schemaId = response.schemaId
    client.GetSchema({ schemaId: schemaId }, (error, res) => {
      if(error) {
       //handle error
      }else {
        schema = avro.parse(res.schemaJson)
      }
    })
  }
})