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_PUBLIC_CERTIFICATE_AUTHORITY_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "publicca.googleapis.com") used by MakePublicCertificateAuthorityServiceConnection().
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 details environment variables and configurations for the C++ Public Certificate Authority Service library, covering versions from 2.25.1 to 2.37.0-rc."],["The `GOOGLE_CLOUD_CPP_PUBLIC_CERTIFICATE_AUTHORITY_SERVICE_ENDPOINT` variable allows overriding the default service endpoint, which is normally \"publicca.googleapis.com\"."],["Tracing for gRPC calls can be enabled using `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, which will print gRPC requests and responses."],["Logging within the library can be enabled by setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`, allowing output to the program's console, or through other logging backends."],["The variable `GOOGLE_CLOUD_PROJECT` configures the GCP project for examples and integration tests but does not impact the library's behavior directly."]]],[]]
