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::TracingComponentsOptionGOOGLE_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 document outlines environment variables and settings for configuring the behavior of the Secret Manager C++ library, version 2.13.0 and onwards, including various versions of the library and how to access their respective documentation pages."],["The `GOOGLE_CLOUD_CPP_SECRET_MANAGER_SERVICE_ENDPOINT` variable allows for overriding the default endpoint used by `MakeSecretManagerServiceConnection()`."],["Tracing for gRPC calls can be enabled by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and it is recommended to also enable `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to view the tracing output."],["The variable `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` allows customization of gRPC tracing behavior, such as message formatting and truncation of string or byte fields."],["`GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` activates the library's logging infrastructure, and `GOOGLE_CLOUD_PROJECT` can be used for setting the GCP project in examples and integration tests, but has no effect on the library itself."]]],[]]
