Terminology

Method handler

In NestJS, individual HTTP endpoints are defined by methods within NestJS controllers. Individual method definitions within the NestJS controller are referred to as method handlers throughout this wiki.

Resolver

GraphQL works by having independent methods for each field that a user requests. These methods are responsible for retrieving the value that the user is requesting. Resolvers can be thought of as the method handlers in a GraphQL context. Read more on the GraphQL documentation.