spring.user.datasource.url=jdbc:mysql://localhost:3306/user
spring.user.datasource.username=root
spring.user.datasource.password=root
spring.user.datasource.driver-class-name=com.mysql.jdbc.Driver

spring.booking.datasource.url=jdbc:mysql://localhost:3306/booking
spring.booking.datasource.username=root
spring.booking.datasource.password=root
spring.booking.datasource.driver-class-name=com.mysql.jdbc.Driver

@Bean
@ConfigurationProperties(prefix = "spring.booking.datasource")
public DataSource mysqlDataSource() {
    return DataSourceBuilder
                .create()
                .build();
}

@Bean
@ConfigurationProperties(prefix = "spring.user.datasource")
public DataSource postgresqlDataSource() {
    return DataSourceBuilder
                .create()
                .build();
}