Hands-On Microservices with Kotlin

Using the repository

We can modify our DatabaseInitializer class to add some initial data to our database using the repository that we just created:

package com.microservices.chapter5import org.springframework.beans.factory.annotation.Autowiredimport org.springframework.data.mongodb.core.ReactiveMongoOperationsimport org.springframework.stereotype.Componentimport javax.annotation.PostConstruct@Componentclass DatabaseInitializer {  @Autowired  lateinit var customerRepository: CustomerRepository  @Autowired  lateinit var mongoOperations: ReactiveMongoOperations  @PostConstruct  fun initData() {    mongoOperations.collectionExists("Customers").subscribe {      if (it != true) mongoOperations.createCollection("Customers").subscribe {        println("Customers collections ...