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_APP_CONNECTIONS_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "beyondcorp.googleapis.com") used by MakeAppConnection().
GOOGLE_CLOUD_CPP_APP_CONNECTORS_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "beyondcorp.googleapis.com") used by MakeAppConnectorsServiceConnection().
GOOGLE_CLOUD_CPP_APP_GATEWAYS_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "beyondcorp.googleapis.com") used by MakeAppGatewaysServiceConnection().
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 2025-03-05 UTC."],[[["This document provides reference information for multiple versions of the BeyondCorp C++ library, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc."],["Environment variables such as `GOOGLE_CLOUD_CPP_APP_CONNECTIONS_SERVICE_ENDPOINT`, `GOOGLE_CLOUD_CPP_APP_CONNECTORS_SERVICE_ENDPOINT`, and `GOOGLE_CLOUD_CPP_APP_GATEWAYS_SERVICE_ENDPOINT` can override default endpoints for different BeyondCorp services."],["Tracing for gRPC calls can be enabled by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and combined with `GOOGLE_CLOUD_CPP_ENABLE_CLOG` to see the output in the program's console."],["The environment variable `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` allows customization of gRPC tracing behavior, including the format and truncation of output messages."],["Setting the `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` environment variable will turn on logging for the library and allow it to be output."]]],[]]
