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_BUDGET_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "billingbudgets.googleapis.com") used by MakeBudgetServiceConnection().
GOOGLE_CLOUD_CPP_CLOUD_BILLING_ENDPOINT=... overrides the EndpointOption (which defaults to "cloudbilling.googleapis.com") used by MakeCloudBillingConnection().
GOOGLE_CLOUD_CPP_CLOUD_CATALOG_ENDPOINT=... overrides the EndpointOption (which defaults to "cloudbilling.googleapis.com") used by MakeCloudCatalogConnection().
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 page provides documentation for various versions of the C++ billing library, ranging from version 2.11.0 up to the release candidate 2.37.0-rc."],["Environment variables are crucial for configuring the library's behavior, particularly useful for troubleshooting and modifying endpoint overrides."],["Several endpoint overrides are available for different services, including Budget Service, Cloud Billing, and Cloud Catalog, using variables like `GOOGLE_CLOUD_CPP_BUDGET_SERVICE_ENDPOINT`."],["Tracing and logging can be enabled and customized via environment variables like `GOOGLE_CLOUD_CPP_ENABLE_TRACING` and `GOOGLE_CLOUD_CPP_ENABLE_CLOG`, offering insights into gRPC calls and library operations."],["While the `GOOGLE_CLOUD_PROJECT` variable is used in examples and tests, it does not influence the library's behavior directly."]]],[]]
