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_EDGE_CONTAINER_ENDPOINT=... overrides the EndpointOption (which defaults to "edgecontainer.googleapis.com") used by MakeEdgeContainerConnection().
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 2025-03-21 UTC."],[[["The latest release candidate version for this Edge Container documentation is 2.37.0-rc, and there are also multiple stable releases available, ranging from version 2.36.0 down to 2.11.0."],["Environment variables such as `GOOGLE_CLOUD_CPP_EDGE_CONTAINER_ENDPOINT` can be used to override default settings like the `EndpointOption` for `MakeEdgeContainerConnection()`."],["You can enable gRPC call tracing by setting `GOOGLE_CLOUD_CPP_ENABLE_TRACING=rpc`, which will print each gRPC request and response, and you may also need to set `GOOGLE_CLOUD_CPP_ENABLE_CLOG` for output on the console."],["The environment variable `GOOGLE_CLOUD_CPP_TRACING_OPTIONS` allows for customization of gRPC tracing behavior, such as formatting and truncation of string/bytes fields, and logging can be turned on in the library by using `GOOGLE_CLOUD_CPP_ENABLE_CLOG=yes`."],["Although the `GOOGLE_CLOUD_PROJECT` variable is used in integration tests, it has no effect on the library itself, while others variables do affect library behavior."]]],[]]
