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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_CERTIFICATE_MANAGER_ENDPOINT=... overrides the EndpointOption (which defaults to "certificatemanager.googleapis.com") used by MakeCertificateManagerConnection().
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 2025-03-14 UTC."],[[["This document provides version-specific documentation for the Certificate Manager, with the latest release candidate being version 2.37.0-rc and a list of versions going down to 2.11.0, each linked to its respective documentation."],["Environment variables, such as `GOOGLE_CLOUD_CPP_CERTIFICATE_MANAGER_ENDPOINT`, can be used to configure the behavior of the library, like overriding the default endpoint for Certificate Manager connections."],["Tracing for gRPC calls can be enabled using `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and further customized with `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`, with the option to use `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to produce logs on the program's console."],["`GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` will enable the logging infrastructure to print log outputs."],["`GOOGLE_CLOUD_PROJECT` is an environment variable that is used to configure the GCP project in examples and integration tests, it does not have an effect on the library itself."]]],[]]
