How do I configure HikariCP and Dropwizard/Coda-Hale metrics in Spring Boot application

So I was able to figure this out by manually configuring HikariCP in a java configuration file. That allowed me to get a reference to the Spring Boot MetricRegistry, which I could then set in HikariConfig. Here's my configuration class:

@Configuration
public class DatasourceConfiguration {

    @Value("${spring.datasource.username}")
    private String user;

    @Value("${spring.datasource.password}")
    private String password;

    @Value("${spring.datasource.url}")
    private String dataSourceUrl;

    @Value("${spring.datasource.driverClassName}")
    private String driverClassName;

    @Value("${spring.datasource.connectionTestQuery}")
    private String connectionTestQuery;

    @Autowired
    private MetricRegistry metricRegistry;

    @Bean
    public DataSource primaryDataSource() {
        Properties dsProps = new Properties();
        dsProps.setProperty("url", dataSourceUrl);
        dsProps.setProperty("user", user);
        dsProps.setProperty("password", password);

        Properties configProps = new Properties();
        configProps.setProperty("connectionTestQuery", connectionTestQuery);
        configProps.setProperty("driverClassName", driverClassName);
        configProps.setProperty("jdbcUrl", dataSourceUrl);

        HikariConfig hc = new HikariConfig(configProps);
        hc.setDataSourceProperties(dsProps);
        hc.setMetricRegistry(metricRegistry);
        return new HikariDataSource(hc);
    }
}

Or let Spring Boot configure your data source, @Autowire the DataSource and MetricRegistry in your @Configuration/@SpringBootApplication class and wire them together in a @PostConstruct:

@Autowired
private DataSource dataSource;

@Autowired
private MetricRegistry metricRegistry;


@PostConstruct
public void setUpHikariWithMetrics() {
    if(dataSource instanceof HikariDataSource) {
        ((HikariDataSource) dataSource).setMetricRegistry(metricRegistry);
    }
}