A number of environment variables can be used to configure the behavior of the library. There are also functions to configure this behavior in code. The environment variables are convenient when troubleshooting problems.
Endpoint Overrides
GOOGLE_CLOUD_CPP_SERVICE_MANAGER_ENDPOINT=... overrides the EndpointOption (which defaults to "servicemanagement.googleapis.com") used by MakeServiceManagerConnection().
GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc: turns on tracing for most gRPC calls. The library injects an additional Stub decorator that prints each gRPC request and response. Unless you have configured your own logging backend, you should also set GOOGLE_CLOUD_CPP_ENABLE_CLOG to produce any output on the program's console.
See Also
google::cloud::LoggingComponentsOptionGOOGLE_CLOUD_CPP_TRACING_OPTIONS=...: modifies the behavior of gRPC tracing, including whether messages will be output on multiple lines, or whether string/bytes fields will be truncated.
See Also
google::cloud::GrpcTracingOptionsOptionGOOGLE_CLOUD_CPP_ENABLE_CLOG=yes: turns on logging in the library, basically the library always "logs" but the logging infrastructure has no backend to actually print anything until the application sets a backend or they set this environment variable.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Hard to understand","hardToUnderstand","thumb-down"],["Incorrect information or sample code","incorrectInformationOrSampleCode","thumb-down"],["Missing the information/samples I need","missingTheInformationSamplesINeed","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-04-17 UTC."],[[["The webpage provides documentation for various versions of the C++ Service Management library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["Environment variables can be used to configure the library's behavior, especially useful for troubleshooting, and there are also code functions that can be used to configure the library as well."],["The `GOOGLE_CLOUD_CPP_SERVICE_MANAGER_ENDPOINT` variable allows overriding the default endpoint used by `MakeServiceManagerConnection()`."],["Tracing for gRPC calls can be enabled using `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, which will log each request and response, and you should set `GOOGLE_CLOUD_CPP_ENABLE_CLOG` as well if you want the output on the console."],["The variable `GOOGLE_CLOUD_CPP_ENABLE_CLOG` will enable the logs to print output, otherwise the library will always log but no output will be printed."]]],[]]
