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This mainly avoids protoc from 3.7.0 which has a dependency on libatomic. Most of our systems have libatomic, so it mostly works, but the interop docker container does not, so building fails. Version 3.7.1 was rebuilt to avoid needing the libatomic shared library. This has the added benefit that Bazel is now on the same version as Gradle, as 3.7.1 included fixes for Bazel. |
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| android | ||
| example-alts | ||
| example-gauth | ||
| example-kotlin | ||
| example-tls | ||
| gradle/wrapper | ||
| src | ||
| AUTHENTICATION_EXAMPLE.md | ||
| BUILD.bazel | ||
| README.md | ||
| WORKSPACE | ||
| build.gradle | ||
| gradlew | ||
| gradlew.bat | ||
| pom.xml | ||
| settings.gradle | ||
README.md
grpc Examples
The examples require 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.
You may want to read through the Quick Start Guide before trying out the examples.
Basic examples
To build the examples
-
Install gRPC Java library SNAPSHOT locally, including code generation plugin (Only need this step for non-released versions, e.g. master HEAD).
-
Run in this directory:
$ ./gradlew installDist
This creates the scripts hello-world-server, hello-world-client,
route-guide-server, route-guide-client, etc. in the
build/install/examples/bin/ directory that run the examples. Each
example requires the server to be running before starting the client.
For example, to try the hello world example first run:
$ ./build/install/examples/bin/hello-world-server
And in a different terminal window run:
$ ./build/install/examples/bin/hello-world-client
That's it!
Please refer to gRPC Java's README and tutorial for more information.
Maven
If you prefer to use Maven:
-
Install gRPC Java library SNAPSHOT locally, including code generation plugin (Only need this step for non-released versions, e.g. master HEAD).
-
Run in this directory:
$ mvn verify
$ # Run the server
$ mvn exec:java -Dexec.mainClass=io.grpc.examples.helloworld.HelloWorldServer
$ # In another terminal run the client
$ mvn exec:java -Dexec.mainClass=io.grpc.examples.helloworld.HelloWorldClient
Bazel
If you prefer to use Bazel:
$ bazel build :hello-world-server :hello-world-client
$ # Run the server
$ bazel-bin/hello-world-server
$ # In another terminal run the client
$ bazel-bin/hello-world-client
Other examples
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Secure channel examples
Unit test examples
Examples for unit testing gRPC clients and servers are located in examples/src/test.
In general, we DO NOT allow overriding the client stub.
We encourage users to leverage InProcessTransport as demonstrated in the examples to
write unit tests. InProcessTransport is light-weight and runs the server
and client in the same process without any socket/TCP connection.
For testing a gRPC client, create the client with a real stub using an InProcessChannel, and test it against an InProcessServer with a mock/fake service implementation.
For testing a gRPC server, create the server as an InProcessServer, and test it against a real client stub with an InProcessChannel.
The gRPC-java library also provides a JUnit rule, GrpcCleanupRule, to do the graceful shutdown boilerplate for you.
Even more examples
A wide variety of third-party examples can be found here.