Front-end and Back-end optimisations and performance improvements

[anvabr]

Problem description

Every time a user sends a request, Guardian backend executes the requests in full. This can cause unnecessary delays and higher resource utilisation on the backend.

Requirements

Introduce Redis cashing to the api-gateway service so the interactions between Front-end and Back-end are optimised.

Definition of done

• Redis implemented
• See feat: base redis cache requests implementation #3396

Acceptance criteria

Improved Front-end response speed and Back-end resource utilisation