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_ARTIFACT_REGISTRY_ENDPOINT=... overrides the EndpointOption (which defaults to "artifactregistry.googleapis.com") used by MakeArtifactRegistryConnection().
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 outlines environment variables and settings for configuring the behavior of the Artifact Registry C++ client library, offering control over endpoints, logging, and tracing."],["The latest release candidate for the Artifact Registry C++ library is version 2.37.0-rc, with numerous previous versions available, ranging from 2.11.0 up to 2.36.0, all documented on this page."],["You can override the default endpoint (\"artifactregistry.googleapis.com\") for the library using the `GOOGLE_CLOUD_CPP_ARTIFACT_REGISTRY_ENDPOINT` environment variable."],["Enabling gRPC tracing can be achieved by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, and further customization of the tracing behavior is possible via `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`."],["Setting `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes` activates logging within the library, allowing for the display of log information, and the `GOOGLE_CLOUD_PROJECT` variable will set the default project to be used in the examples and integration tests."]]],[]]
