+++ /dev/null
-package endpoint
-
-import (
- "context"
-)
-
-// Endpoint is the fundamental building block of servers and clients.
-// It represents a single RPC method.
-type Endpoint func(ctx context.Context, request interface{}) (response interface{}, err error)
-
-// Nop is an endpoint that does nothing and returns a nil error.
-// Useful for tests.
-func Nop(context.Context, interface{}) (interface{}, error) { return struct{}{}, nil }
-
-// Middleware is a chainable behavior modifier for endpoints.
-type Middleware func(Endpoint) Endpoint
-
-// Chain is a helper function for composing middlewares. Requests will
-// traverse them in the order they're declared. That is, the first middleware
-// is treated as the outermost middleware.
-func Chain(outer Middleware, others ...Middleware) Middleware {
- return func(next Endpoint) Endpoint {
- for i := len(others) - 1; i >= 0; i-- { // reverse
- next = others[i](next)
- }
- return outer(next)
- }
-}