* Use Wiring to initialize Avatar Cache Server
Create AvatarCacheServer Provider function and pass it in as an
argument to HTTPServer. Also convert CacheServer to a singleton
so that we keep all cached Avatar info in one place for easier access
* Refactor avatar cache server and add 'isCustom' check
Avatar cache server needs to perform two similar fetches
back-to-back; break up functions to allow for easy reuse.
Then add handling to see if a user has a custom avatar.
* Add additional accessors so that /recents api can easily use the cache
* Minor mods to avatar server to facilitiate unit testing
* add unit tests for avatar fetching
* add error handling in case we somehow fetch gravatars while they are disabled
* linting: read error return value in unit test
* Use http package status codes
Co-authored-by: Ezequiel Victorero <evictorero@gmail.com>
* Use http package status codes
Co-authored-by: Ezequiel Victorero <evictorero@gmail.com>
* Use http package status codes
Co-authored-by: Ezequiel Victorero <evictorero@gmail.com>
* Incorporate suggestions from PR
-avoid mutating arguments
-change error handler function to private and make name more descriptive
Co-authored-by: Ezequiel Victorero <evictorero@gmail.com>
