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_RAPID_MIGRATION_ASSESSMENT_ENDPOINT=... overrides the EndpointOption (which defaults to "rapidmigrationassessment.googleapis.com") used by MakeRapidMigrationAssessmentConnection().
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 2025-03-14 UTC."],[[["The latest release candidate version for Rapid Migration Assessment is 2.37.0-rc, as indicated by the provided list of available versions."],["The documentation provides a range of Rapid Migration Assessment versions from 2.13.0 up to the latest release candidate, enabling users to access information for specific releases."],["Environment variables like `GOOGLE_CLOUD_CPP_RAPID_MIGRATION_ASSESSMENT_ENDPOINT`, `GOOGLE_CLOUD_CPP_ENABLE_TRACING`, `GOOGLE_CLOUD_CPP_TRACING_OPTIONS`, and `GOOGLE_CLOUD_CPP_ENABLE_CLOG` can be used to configure the library's behavior and logging."],["The library supports endpoint overrides via the `GOOGLE_CLOUD_CPP_RAPID_MIGRATION_ASSESSMENT_ENDPOINT` environment variable, allowing users to specify a custom endpoint instead of the default."],["The `GOOGLE_CLOUD_PROJECT` environment variable is used for configuration in examples and integration tests but does not have any effect on the core library."]]],[]]
