The C based gRPC (C++, Python, Ruby, Objective-C, PHP, C#) https://grpc.io/

Tag: Branch: Tree: master

Esun Kim dc65036957 [C++] Transition to C++17 (CMake) (#38335 ) CMake needs following two changes which were missed part from https://github.com/grpc/grpc/pull/37919 to make CMake use C++17. - Explicitly require C++17 for gRPC targets using `cxx_std_17`: This ensures that gRPC build targets are built with the correct C++17 support. - Enforce C++17 for all CMake invocations using `CMAKE_CXX_STANDARD=17`: This is necessary due to Abseil's API changes depending on the C++ standard used. (e.g. Abseil's `absl::string_view` is implemented differently depending on the C++ standard. Before C++17, it's a distinct type. From C++17 onwards, it's simply an alias for `std::string_view`.) To maintain consistency and avoid build errors, all CMake builds (except particular build tests targetting C++20 or C++23) are now configured to use C++17. The requirement of C++17 for building gRPC should be documented in the release notes and build instructions. Closes #38335 PiperOrigin-RevId: 712926964		1 month ago
..
codelab	[clang-format] Remove custom clang-format rules for include ordering (#37820 )	5 months ago
ostream	[C++] Transition to C++17 (CMake) (#38335 )	1 month ago
BUILD	[Examples] Remove grpcpp_admin dependency (#38196 )	3 months ago
CMakeLists.txt	[Build] Bumped the minimum version of cmake (#37702 )	5 months ago
Makefile	[C++] Transition to C++17 (CMake) (#38335 )	1 month ago
README.md	[OTel C++] Add CMake build support (#36063 )	12 months ago
greeter_callback_client.cc	[OTel] Set prometheus exporter option to populate otel scope (#38170 )	3 months ago
greeter_callback_server.cc	[OTel] Set prometheus exporter option to populate otel scope (#38170 )	3 months ago
util.cc	[Examples] Remove grpcpp_admin dependency (#38196 )	3 months ago
util.h	[CSM] Use xds-enabled server and xds credentials in examples (#38192 )	3 months ago

README.md

gRPC C++ OpenTelemetry Example

The opentelemetry example builds on the Hello World Example and changes the gRPC client and server to show a sample way of configuring the gRPC OpenTelemetry plugin with a prometheus exporter.

For more information on the gRPC OpenTelemetry plugin, please refer to - * A66: OpenTelemetry Metrics

https://opentelemetry.io/

Running the example

To run the server -

$ tools/bazel run examples/cpp/otel:greeter_callback_server

To run the client -

$ tools/bazel run examples/cpp/otel:greeter_callback_client

The client continuously sends an RPC to the server every second.

To make sure that the server and client metrics are being exported properly, in a separate terminal, run the following -

$ curl localhost:9464/metrics

$ curl localhost:9465/metrics

NOTE: If the prometheus endpoint configured is overridden, please update the target in the above curl command.

CMake Instructions

The following libraries need to be installed before building the example with CMake -

absl
protobuf
prometheus-cpp
opentelemetry-cpp (with the options -DWITH_ABSEIL=ON -DWITH_PROMETHEUS=ON)
grpc (with the option -DgRPC_BUILD_GRPCPP_OTEL_PLUGIN=ON)

You can find a complete set of instructions for building gRPC and running the Hello World app in the C++ Quick Start.