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 document outlines environment variables and settings for configuring the behavior of the Secret Manager C++ library, focusing on versions ranging from 2.10.1 up to the latest release candidate, 2.37.0-rc."],["The `GOOGLE_CLOUD_CPP_SECRET_MANAGER_SERVICE_ENDPOINT` environment variable allows users to override the default endpoint for the Secret Manager service, facilitating connection to custom or alternative service endpoints."],["Users can utilize `GOOGLE_CLOUD_CPP_ENABLE_TRACING` to activate gRPC call tracing and `GOOGLE_CLOUD_CPP_ENABLE_CLOG` for logging, which are helpful for debugging and understanding the flow of gRPC requests and responses."],["`GOOGLE_CLOUD_CPP_TRACING_OPTIONS` enables the customization of the tracing output's format, such as controlling message multiline display and field truncation."],["While the `GOOGLE_CLOUD_PROJECT` environment variable is used in examples and integration tests for the default GCP project, it does not alter the library's functionality."]]],[]]
