Error from 'dynamic-config-client-updater' updater: Field 'USERVER_HTTP_PROXY' is of a wrong type. Expected: stringValue, actual: objectValue

[skene2321]

Hey guys,
when connecting a dynamic-config-client-updater to a config server that's configured to use a postgresql db this error appears:

tskv timestamp=2022-08-26T17:33:41.127367 level=ERROR module=DoRun ( third_party/userver/core/src/components/run.cpp:164 ) task_id=0 thread_id=0x00007F1E59D55AC0 text=Loading failed: Error from 'dynamic-config-client-updater' updater: Field 'USERVER_HTTP_PROXY' is of a wrong type. Expected: stringValue, actual: objectValue (std::runtime_error) tskv timestamp=2022-08-26T17:33:41.129100 level=ERROR module=DaemonMain ( third_party/userver/core/src/utils/daemon_run.cpp:72 ) task_id=0 thread_id=0x00007F1E59D55AC0 text=Unhandled exception in components::Run: Error from 'dynamic-config-client-updater' updater: Field 'USERVER_HTTP_PROXY' is of a wrong type. Expected: stringValue, actual: objectValue Unhandled exception in components::Run: Error from 'dynamic-config-client-updater' updater: Field 'USERVER_HTTP_PROXY' is of a wrong type. Expected: stringValue, actual: objectValue

It's expecting a string but config_value is a json column.
The error doesn't happen if switching to the dynamic_config_fallback.json file there the value of USERVER_HTTP_PROXY is correctly a string.
Thanks

[apolukhin]

Thanks for the bug report! Looks like we also need to change the tests of the service, to catch such errors early

[apolukhin]

Added a test and fixed the invalid values in DB. The test is not perfect, but does the job.

Once again, many thanks for the bugreport!