Examples with GrpcServer io.helidon.grpc.server.GrpcServer used on opensource projects

Example 11 with GrpcServer

use of io.helidon.grpc.server.GrpcServer in project helidon by oracle.

the class Server method main.

/**
 * The main program entry point.
 *
 * @param args  the program arguments
 *
 * @throws Exception  if an error occurs
 */
public static void main(String[] args) throws Exception {
    // By default this will pick up application.yaml from the classpath
    Config config = Config.create();
    // load logging configuration
    LogConfig.configureRuntime();
    // Get gRPC server config from the "grpc" section of application.yaml
    GrpcServerConfiguration serverConfig = GrpcServerConfiguration.builder(config.get("grpc")).build();
    GrpcRouting grpcRouting = GrpcRouting.builder().intercept(// global metrics - all service methods counted
    GrpcMetrics.counted()).register(// GreetService uses global metrics so all methods are counted
    new GreetService(config)).register(new StringService(), rules -> {
        // service level metrics - StringService overrides global so that its methods are timed
        rules.intercept(GrpcMetrics.timed()).intercept("Upper", GrpcMetrics.histogram());
    }).build();
    GrpcServer grpcServer = GrpcServer.create(serverConfig, grpcRouting);
    // Try to start the server. If successful, print some info and arrange to
    // print a message at shutdown. If unsuccessful, print the exception.
    grpcServer.start().thenAccept(s -> {
        System.out.println("gRPC server is UP! http://localhost:" + s.port());
        s.whenShutdown().thenRun(() -> System.out.println("gRPC server is DOWN. Good bye!"));
    }).exceptionally(t -> {
        System.err.println("Startup failed: " + t.getMessage());
        t.printStackTrace(System.err);
        return null;
    });
    // start web server with the metrics endpoints
    Routing routing = Routing.builder().register(MetricsSupport.create()).build();
    WebServer.create(routing, config.get("webserver")).start().thenAccept(s -> {
        System.out.println("HTTP server is UP! http://localhost:" + s.port());
        s.whenShutdown().thenRun(() -> System.out.println("HTTP server is DOWN. Good bye!"));
    }).exceptionally(t -> {
        System.err.println("Startup failed: " + t.getMessage());
        t.printStackTrace(System.err);
        return null;
    });
}

Example 12 with GrpcServer

use of io.helidon.grpc.server.GrpcServer in project helidon by oracle.

the class ZipkinExampleMain method main.

/**
 * Program entry point.
 *
 * @param args the program command line arguments
 * @throws Exception if there is a program error
 */
public static void main(String[] args) throws Exception {
    // By default this will pick up application.yaml from the classpath
    Config config = Config.create();
    // load logging configuration
    LogConfig.configureRuntime();
    Tracer tracer = TracerBuilder.create(config.get("tracing")).build();
    GrpcTracingConfig tracingConfig = GrpcTracingConfig.builder().withStreaming().withVerbosity().withTracedAttributes(ServerRequestAttribute.CALL_ATTRIBUTES, ServerRequestAttribute.HEADERS, ServerRequestAttribute.METHOD_NAME).build();
    // Get gRPC server config from the "grpc" section of application.yaml
    GrpcServerConfiguration serverConfig = GrpcServerConfiguration.builder(config.get("grpc")).tracer(tracer).tracingConfig(tracingConfig).build();
    GrpcServer grpcServer = GrpcServer.create(serverConfig, createRouting(config));
    // Try to start the server. If successful, print some info and arrange to
    // print a message at shutdown. If unsuccessful, print the exception.
    grpcServer.start().thenAccept(s -> {
        System.out.println("gRPC server is UP! http://localhost:" + s.port());
        s.whenShutdown().thenRun(() -> System.out.println("gRPC server is DOWN. Good bye!"));
    }).exceptionally(t -> {
        System.err.println("Startup failed: " + t.getMessage());
        t.printStackTrace(System.err);
        return null;
    });
}