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::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 2025-03-21 UTC."],[[["This document provides a comprehensive list of available versions for the C++ billing library, ranging from version 2.11.0 up to the latest release candidate 2.37.0-rc."],["Several environment variables, such as `GOOGLE_CLOUD_CPP_BUDGET_SERVICE_ENDPOINT`, `GOOGLE_CLOUD_CPP_CLOUD_BILLING_ENDPOINT`, and `GOOGLE_CLOUD_CPP_CLOUD_CATALOG_ENDPOINT`, allow for overriding default endpoints used by the library's connection functions."],["Tracing for gRPC calls can be enabled using `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and further customized with `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` to control the output format and truncation of messages."],["The `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` environment variable enables logging within the library, directing the logging output to the program's console, if no other backend is set."],["The `GOOGLE_CLOUD_PROJECT` allows configuration of the GCP project, which is used for examples and integration tests, although it has no direct effect on the library's operation."]]],[]]
