History

Eric Anderson a977385187 Upgrade dependencies The GSON upgrade slightly changed an error string, so the test was updated to be less of a change detector. Some OpenTelemetry dependencies are alpha versions, so needed an adjustment in build.gradle to accept the versions. Similarly, Undertow includes Final in its version numbers which needs to be accepted.		2024-07-11 15:09:00 -07:00
..
src	Fix various typos (#11144 )	2024-05-06 20:29:44 -07:00
BUILD.bazel	examples: Add hostname example	2020-01-17 15:50:49 -08:00
README.md	examples: Fix hostname binary name in README	2023-05-16 15:44:09 -07:00
build.gradle	Upgrade dependencies	2024-07-11 15:09:00 -07:00
pom.xml	Upgrade dependencies	2024-07-11 15:09:00 -07:00
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-server/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