Added support for hooks to customize behavior.

api/ifaces/handlers.go

@@ -0,0 +1,25 @@
+package ifaces
+
+import (
+	"net/http"
+
+	"github.com/iron-io/functions/api/models"
+)
+
+type SpecialHandler interface {
+	Handle(c HandlerContext) error
+}
+
+// Each handler can modify the context here so when it gets passed along, it will use the new info.
+// Not using Gin's Context so we don't lock ourselves into Gin, this is a subset of the Gin context.
+type HandlerContext interface {
+	// Request returns the underlying http.Request object
+	Request() *http.Request
+
+	// Datastore returns the models.Datastore object. Not that this has arbitrary key value store methods that can be used to store extra data
+	Datastore() models.Datastore
+
+	// Set and Get values on the context, this can be useful to change behavior for the rest of the request
+	Set(key string, value interface{})
+	Get(key string) (value interface{}, exists bool)
+}