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_BINAUTHZ_MANAGEMENT_SERVICE_V1_ENDPOINT=... overrides the EndpointOption (which defaults to "binaryauthorization.googleapis.com") used by MakeBinauthzManagementServiceV1Connection().
GOOGLE_CLOUD_CPP_SYSTEM_POLICY_V1_ENDPOINT=... overrides the EndpointOption (which defaults to "binaryauthorization.googleapis.com") used by MakeSystemPolicyV1Connection().
GOOGLE_CLOUD_CPP_VALIDATION_HELPER_V1_ENDPOINT=... overrides the EndpointOption (which defaults to "binaryauthorization.googleapis.com") used by MakeValidationHelperV1Connection().
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"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-14 UTC."],[[["\u003cp\u003eThe webpage provides documentation for various versions of the Binary Authorization C++ library, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc.\u003c/p\u003e\n"],["\u003cp\u003eSeveral environment variables can be used to configure the library's behavior, which is particularly useful for troubleshooting.\u003c/p\u003e\n"],["\u003cp\u003eEndpoint overrides for the library's different components, like the Management Service, System Policy, and Validation Helper, can be set using environment variables such as \u003ccode\u003eGOOGLE_CLOUD_CPP_BINAUTHZ_MANAGEMENT_SERVICE_V1_ENDPOINT\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eTracing for gRPC calls can be enabled and configured through environment variables like \u003ccode\u003eGOOGLE_CLOUD_CPP_ENABLE_TRACING\u003c/code\u003e and \u003ccode\u003eGOOGLE_CLOUD_CPP_TRACING_OPTIONS\u003c/code\u003e, allowing detailed monitoring of gRPC requests and responses.\u003c/p\u003e\n"],["\u003cp\u003eLogging can be enabled with \u003ccode\u003eGOOGLE_CLOUD_CPP_ENABLE_CLOG\u003c/code\u003e that ensures that messages are printed to the program console, after which you can use \u003ccode\u003eGOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc\u003c/code\u003e to output the logs.\u003c/p\u003e\n"]]],[],null,[]]
