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_FOLDERS_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeFoldersConnection().
GOOGLE_CLOUD_CPP_ORGANIZATIONS_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeOrganizationsConnection().
GOOGLE_CLOUD_CPP_PROJECTS_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeProjectsConnection().
GOOGLE_CLOUD_CPP_TAG_BINDINGS_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeTagBindingsConnection().
GOOGLE_CLOUD_CPP_TAG_HOLDS_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeTagHoldsConnection().
GOOGLE_CLOUD_CPP_TAG_KEYS_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeTagKeysConnection().
GOOGLE_CLOUD_CPP_TAG_VALUES_ENDPOINT=...overrides theEndpointOption(which defaults to "cloudresourcemanager.googleapis.com") used byMakeTagValuesConnection().
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 setGOOGLE_CLOUD_CPP_ENABLE_CLOGto 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 2025-09-04 UTC."],[[["\u003cp\u003eThe latest release candidate version for the resource manager is 2.37.0-rc, which can be found via the provided link, and there is a list of previous versions dating back to 2.11.0.\u003c/p\u003e\n"],["\u003cp\u003eEnvironment variables can be utilized to modify the behavior of the library, offering a way to configure settings and aid in troubleshooting.\u003c/p\u003e\n"],["\u003cp\u003eSpecific environment variables, such as \u003ccode\u003eGOOGLE_CLOUD_CPP_FOLDERS_ENDPOINT\u003c/code\u003e, allow for overriding default endpoint options for different connection types.\u003c/p\u003e\n"],["\u003cp\u003eLogging and tracing behavior within the library can be controlled using environment variables like \u003ccode\u003eGOOGLE_CLOUD_CPP_ENABLE_TRACING\u003c/code\u003e and \u003ccode\u003eGOOGLE_CLOUD_CPP_ENABLE_CLOG\u003c/code\u003e, offering insights into gRPC calls and library operations.\u003c/p\u003e\n"],["\u003cp\u003e\u003ccode\u003eGOOGLE_CLOUD_PROJECT\u003c/code\u003e can be used to set the default project in example and integration tests.\u003c/p\u003e\n"]]],[],null,["Version 2.30.0keyboard_arrow_down\n\n- [2.42.0-rc (latest)](/cpp/docs/reference/resourcemanager/latest/resourcemanager-env)\n- [2.41.0](/cpp/docs/reference/resourcemanager/2.41.0/resourcemanager-env)\n- [2.40.0](/cpp/docs/reference/resourcemanager/2.40.0/resourcemanager-env)\n- [2.39.0](/cpp/docs/reference/resourcemanager/2.39.0/resourcemanager-env)\n- [2.38.0](/cpp/docs/reference/resourcemanager/2.38.0/resourcemanager-env)\n- [2.37.0](/cpp/docs/reference/resourcemanager/2.37.0/resourcemanager-env)\n- [2.36.0](/cpp/docs/reference/resourcemanager/2.36.0/resourcemanager-env)\n- [2.35.0](/cpp/docs/reference/resourcemanager/2.35.0/resourcemanager-env)\n- [2.34.0](/cpp/docs/reference/resourcemanager/2.34.0/resourcemanager-env)\n- [2.33.0](/cpp/docs/reference/resourcemanager/2.33.0/resourcemanager-env)\n- [2.32.0](/cpp/docs/reference/resourcemanager/2.32.0/resourcemanager-env)\n- [2.31.0](/cpp/docs/reference/resourcemanager/2.31.0/resourcemanager-env)\n- [2.30.0](/cpp/docs/reference/resourcemanager/2.30.0/resourcemanager-env)\n- [2.29.0](/cpp/docs/reference/resourcemanager/2.29.0/resourcemanager-env)\n- [2.28.0](/cpp/docs/reference/resourcemanager/2.28.0/resourcemanager-env)\n- [2.27.0](/cpp/docs/reference/resourcemanager/2.27.0/resourcemanager-env)\n- [2.26.0](/cpp/docs/reference/resourcemanager/2.26.0/resourcemanager-env)\n- [2.25.1](/cpp/docs/reference/resourcemanager/2.25.1/resourcemanager-env)\n- [2.24.0](/cpp/docs/reference/resourcemanager/2.24.0/resourcemanager-env)\n- [2.23.0](/cpp/docs/reference/resourcemanager/2.23.0/resourcemanager-env)\n- [2.22.1](/cpp/docs/reference/resourcemanager/2.22.1/resourcemanager-env)\n- [2.21.0](/cpp/docs/reference/resourcemanager/2.21.0/resourcemanager-env)\n- [2.20.0](/cpp/docs/reference/resourcemanager/2.20.0/resourcemanager-env)\n- [2.19.0](/cpp/docs/reference/resourcemanager/2.19.0/resourcemanager-env)\n- [2.18.0](/cpp/docs/reference/resourcemanager/2.18.0/resourcemanager-env)\n- [2.17.0](/cpp/docs/reference/resourcemanager/2.17.0/resourcemanager-env)\n- [2.16.0](/cpp/docs/reference/resourcemanager/2.16.0/resourcemanager-env)\n- [2.15.1](/cpp/docs/reference/resourcemanager/2.15.1/resourcemanager-env)\n- [2.14.0](/cpp/docs/reference/resourcemanager/2.14.0/resourcemanager-env)\n- [2.13.0](/cpp/docs/reference/resourcemanager/2.13.0/resourcemanager-env)\n- [2.12.0](/cpp/docs/reference/resourcemanager/2.12.0/resourcemanager-env)\n- [2.11.0](/cpp/docs/reference/resourcemanager/2.11.0/resourcemanager-env) \n\nEnvironment Variables\n=====================\n\nA 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.\n\nEndpoint Overrides\n------------------\n\n- `GOOGLE_CLOUD_CPP_FOLDERS_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeFoldersConnection()`.\n- `GOOGLE_CLOUD_CPP_ORGANIZATIONS_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeOrganizationsConnection()`.\n- `GOOGLE_CLOUD_CPP_PROJECTS_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeProjectsConnection()`.\n- `GOOGLE_CLOUD_CPP_TAG_BINDINGS_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeTagBindingsConnection()`.\n- `GOOGLE_CLOUD_CPP_TAG_HOLDS_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeTagHoldsConnection()`.\n- `GOOGLE_CLOUD_CPP_TAG_KEYS_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeTagKeysConnection()`.\n- `GOOGLE_CLOUD_CPP_TAG_VALUES_ENDPOINT=...` overrides the `EndpointOption` (which defaults to \"cloudresourcemanager.googleapis.com\") used by `MakeTagValuesConnection()`.\n\n###### See Also\n\n[`google::cloud::EndpointOption`](https://cloud.google.com/cpp/docs/reference/common/latest/structgoogle_1_1cloud_1_1EndpointOption.html)\n\nLogging\n-------\n\n`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.\n\n###### See Also\n\n[`google::cloud::LoggingComponentsOption`](https://cloud.google.com/cpp/docs/reference/common/latest/structgoogle_1_1cloud_1_1LoggingComponentsOption.html)`GOOGLE_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.\n\n###### See Also\n\n[`google::cloud::GrpcTracingOptionsOption`](https://cloud.google.com/cpp/docs/reference/common/latest/structgoogle_1_1cloud_1_1GrpcTracingOptionsOption.html)`GOOGLE_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.\n\n###### See Also\n\n[`google::cloud::LogBackend`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1LogBackend.html)\n\n###### See Also\n\n[`google::cloud::LogSink`](https://cloud.google.com/cpp/docs/reference/common/latest/classgoogle_1_1cloud_1_1LogSink.html)\n\nSetting the Default Project\n---------------------------\n\n`GOOGLE_CLOUD_PROJECT=...`: is used in examples and integration tests to configure the GCP project. This has no effect in the library."]]
