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_SECRET_MANAGER_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "secretmanager.googleapis.com") used by MakeSecretManagerServiceConnection().
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 2025-03-21 UTC."],[[["This page lists various versions of the Secret Manager C++ library, ranging from the latest release candidate 2.37.0-rc down to version 2.10.1."],["Environment variables such as `GOOGLE_CLOUD_CPP_SECRET_MANAGER_SERVICE_ENDPOINT` can be used to override the default service endpoint for `MakeSecretManagerServiceConnection()`."],["Tracing for gRPC calls can be enabled via the `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc` environment variable, and setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG` alongside this will output the logs to the console."],["The environment variable `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` is used to modify the behavior of gRPC tracing such as the output format of messages and whether string/bytes fields will be truncated."],["`GOOGLE_CLOUD_PROJECT` can be used in examples and integration tests to configure the GCP project, however it does not effect the library."]]],[]]
