content: package io.aiven.klaw.config;
  
  import org.apache.coyote.ProtocolHandler;
  import org.apache.coyote.http11.AbstractHttp11Protocol;
  import org.apache.coyote.http2.Http2Protocol;
  import org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory;
  import org.springframework.boot.web.server.WebServerFactoryCustomizer;
  import org.springframework.http.MediaType;
  import org.springframework.stereotype.Component;
  
  @Component
  public class Http2Config implements WebServerFactoryCustomizer<TomcatServletWebServerFactory> {
  
    @Override
    public void customize(TomcatServletWebServerFactory factory) {
      // customize the factory here
      factory.addConnectorCustomizers(
          (connector) -> {
            connector.addUpgradeProtocol(new Http2Protocol());
            ProtocolHandler handler = connector.getProtocolHandler();
            if (handler instanceof AbstractHttp11Protocol) {
              AbstractHttp11Protocol<?> protocol = (AbstractHttp11Protocol<?>) handler;
              protocol.setCompression("on");
              protocol.setCompressionMinSize(1024);
              String mimeTypes = "text/html,text/css,application/javascript";
              String mimeTypesWithJson = mimeTypes + "," + MediaType.APPLICATION_JSON_VALUE;
              protocol.setCompressibleMimeType(mimeTypesWithJson);
            }
          });
    }
  }
  