In this video, Gaurav Sen discusses the basic idea behind rate limiters: allowing a service to configure itself using a server if it wants to limit its requests.
Different services may have different rate-limiting configurations, and the time units and request types may also vary.
Therefore, the server needs to know the service's request type, time unit, and the allowed amount for that service to limit the rate.
The video also discusses the key used for rate limiting and how it can be used to define more specific user configurations.
Finally, the video explains how the client and server interact and how the client can make the right decisions based on the server's state.