how to set hikari connection properties in datasource.groovy - grails

Question

In springboot2.X i am able to set hikari connection pool config like maxLifeTime in application.ymal easily.
Similarly i want to to it in groovy. Is it inside dBProperties?
i am using groovy 2.5.4 and grails 2.4.4
dataSource {
pooled = true
dbCreate = "update"
url = "jdbc:mysql://localhost:3306/my_database"
driverClassName = "com.mysql.jdbc.Driver"
dialect = org.hibernate.dialect.MySQL5InnoDBDialect
username = "username"
password = "password"
type = "com.zaxxer.hikari.HikariDataSource"
properties {
....
....
dbProperties {
maxLifeTime=200000
}
}
}

Answer 1

You can add it as bean in conf/spring/resources.groovy
import com.zaxxer.hikari.HikariConfig
import com.zaxxer.hikari.HikariDataSource
import grails.util.Holders
// Place your Spring DSL code here
beans = {
dataSource(HikariDataSource) { bean ->
def ds = Holders.config.dataSource
def hp = new Properties()
hp.username = ds.username
hp.password = ds.password
hp.jdbcUrl = ds.url
hp.driverClassName = ds.driverClassName
hp.connectionTimeout = ds.hikariConnectionTimeout
hp.maximumPoolSize = ds.hikariMaximumPoolSize
hp.maxLifetime = ds.hikariMaxLifetime
hp.idleTimeout = ds.hikariIdleTimeout
hp.minimumIdle = ds.hikariMinimumIdle
hp.connectionTestQuery = "SELECT 1"
HikariConfig hc = new HikariConfig(hp)
bean.constructorArgs = [hc]
}
}
With these added you can define your properties in your Datasoure.groovy like this
dataSource {
dbCreate = "update"
url = "jdbc:postgresql://localhost:5432/db"
username = "username"
password = "password"
hikariMinimumIdle = 5
hikariMaximumPoolSize = 30
hikariIdleTimeout = 600000
hikariConnectionTimeout = 30000
hikariMaxLifetime = 1800000
}