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_APIGEE_CONNECTION_SERVICE_ENDPOINT=... overrides the EndpointOption (which defaults to "apigeeconnect.googleapis.com") used by MakeConnection().
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 Apigee Connect library versions, ranging from version 2.11.0 up to the latest release candidate, 2.37.0-rc."],["Environment variables can be leveraged to configure the library's behavior, especially useful for troubleshooting, allowing for modifications to settings like endpoint overrides and enabling tracing."],["The `GOOGLE_CLOUD_CPP_APIGEE_CONNECTION_SERVICE_ENDPOINT` environment variable allows users to override the default endpoint used by `MakeConnection()`."],["Enabling logging and tracing for gRPC calls can be done by setting the `GOOGLE_CLOUD_CPP_ENABLE_TRACING` and `GOOGLE_CLOUD_CPP_ENABLE_CLOG` environment variables, respectively, allowing for more detailed debugging."],["Setting `GOOGLE_CLOUD_PROJECT` will configure the GCP project, however this has no effect on the library."]]],[]]
