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_RESOURCE_SETTINGS_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "resourcesettings.googleapis.com") used by MakeResourceSettingsServiceConnection().
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"]],[["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 a comprehensive list of available versions for the Resource Settings component, ranging from the latest release candidate (2.37.0-rc) down to version 2.11.0, each linked to its respective documentation."],["Environment variables, such as `GOOGLE_CLOUD_CPP_RESOURCE_SETTINGS_SERVICE_ENDPOINT`, can be used to customize the behavior of the library, offering options like overriding the default service endpoint."],["The document details how to enable and configure gRPC tracing with `GOOGLE_CLOUD_CPP_ENABLE_TRACING` and `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`, allowing for detailed monitoring of gRPC calls and their output format."],["`GOOGLE_CLOUD_CPP_ENABLE_CLOG` can turn on the logging in the library, and in conjunction with a logging backend will actually print that output to a console."],["The `GOOGLE_CLOUD_PROJECT` environment variable is used for setting the default GCP project in examples and tests but does not affect the library's core functionality."]]],[]]
