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_NET_APP_ENDPOINT=... overrides the EndpointOption (which defaults to "netapp.googleapis.com") used by MakeNetAppConnection().
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++ NetApp library, ranging from version 2.16.0 up to the latest release candidate 2.37.0-rc."],["Environment variables like `GOOGLE_CLOUD_CPP_NET_APP_ENDPOINT` can be used to override default endpoint configurations for the NetApp library."],["The `GOOGLE_CLOUD_CPP_ENABLE_TRACING` variable enables tracing for gRPC calls, providing detailed request and response information for debugging, and `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` provides more control over how to display the output."],["`GOOGLE_CLOUD_CPP_ENABLE_CLOG` enables outputting the logging to the console, and while the library always logs, the backend to display the output must be enabled."],["The `GOOGLE_CLOUD_PROJECT` variable is used in examples and tests to configure the GCP project but does not affect the library's behavior directly."]]],[]]
