History

Eric Anderson 44847bf4e9 Upgrade JUnit to 4.13.2 ExpectedException is deprecated, so I fixed the new warnings. However, we are still using ExpectedException many places and had previously supressed the warning. See https://github.com/grpc/grpc-java/issues/7467 . I did not fix those existing instances that had suppressed the warning, since it is unrelated to the upgrade and we have been free to fix them at any time since we dropped Java 7.		2023-01-20 09:33:11 -08:00
..
src	examples: Swap to Channel/ServerCredentials API	2022-11-21 09:09:21 -08:00
BUILD.bazel	examples: Add hostname example	2020-01-17 15:50:49 -08:00
README.md	examples: Add hostname example	2020-01-17 15:50:49 -08:00
build.gradle	Upgrade JUnit to 4.13.2	2023-01-20 09:33:11 -08:00
pom.xml	Upgrade JUnit to 4.13.2	2023-01-20 09:33:11 -08:00
settings.gradle	examples: Add hostname example	2020-01-17 15:50:49 -08:00

README.md

gRPC Hostname Example

The hostname example is a Hello World server whose response includes its hostname. It also supports health and reflection services. This makes it a good server to test infrastructure, like load balancing.

The example requires grpc-java to already be built. You are strongly encouraged to check out a git release tag, since there will already be a build of grpc available. Otherwise you must follow COMPILING.

Build the example

Build the hello-world example client. See the examples README
Build this server. From the grpc-java/examples/examples-hostname directory:

$ ../gradlew installDist

This creates the script build/install/hostname-server/bin/hostname-server that runs the example.

To run the hostname example, run:

$ ./build/install/hostname/bin/hostname-server

And in a different terminal window run the hello-world client:

$ ../build/install/examples/bin/hello-world-client

Maven

If you prefer to use Maven:

Build the hello-world example client. See the examples README
Run in this directory:

$ mvn verify
$ # Run the server (from the examples-hostname directory)
$ mvn exec:java -Dexec.mainClass=io.grpc.examples.hostname.HostnameServer
$ # In another terminal run the client (from the examples directory)
$ cd ..
$ mvn exec:java -Dexec.mainClass=io.grpc.examples.helloworld.HelloWorldClient

Bazel

If you prefer to use Bazel, run from the grpc-java/examples directory:

$ bazel build :hello-world-client example-hostname:hostname-server
$ # Run the server
$ ./bazel-bin/example-hostname/hostname-server
$ # In another terminal run the client
$ ./bazel-bin/hello-world-client