HerokuConfig

package com.example

import org.springframework.beans.factory.annotation.Autowired
import org.springframework.boot.autoconfigure.jdbc.DataSourceBuilder
import org.springframework.boot.autoconfigure.jdbc.DataSourceProperties
import org.springframework.context.annotation.Bean
import org.springframework.context.annotation.Configuration
import org.springframework.context.annotation.Profile
import java.net.URI
import java.net.URISyntaxException
import javax.sql.DataSource

@Profile("heroku")
@Configuration
open class HerokuConfig(@Autowired val properties: DataSourceProperties) {
    @Bean
    @Throws(URISyntaxException::class)
    open fun dataSource(): DataSource {
        val dbUri = URI(System.getenv("DATABASE_URL"))
        val url = "jdbc:postgresql://" + dbUri.host + ":" + dbUri.port + dbUri.path
        val username = dbUri.userInfo.split(":")[0]
        val password = dbUri.userInfo.split(":")[1]

        return DataSourceBuilder
                .create(this.properties.classLoader)
                .url(url)
                .username(username)
                .password(password).build()
    }
}