Add unit tests for components

**Feature request**
It would be great to have retry for api.

**Use case**
Many users need this functionality for production deployments.

**Implementation idea**
Add a new config option `enable_retry` with default `false`.

Start by locating the API request path, configuration handling, and existing component unit tests. Confirm how retries should behave, then add the enable_retry option with a default of false and tests showing the configured behavior; done means the tests pass and the default remains unchanged.

Written by the indexing model from the issue text.