dynamic/handler.go

@@ -8,16 +8,16 @@ import (
 	"git.xdrm.io/go/aicra/internal/config"
 )
 
-// Build a handler from a service configuration and a HandlerFn
+// Build a handler from a service configuration and a dynamic function
 //
-// a HandlerFn must have as a signature : `func(api.Request, inputStruct) (outputStruct, api.Error)`
+// @fn must have as a signature : `func(inputStruct) (*outputStruct, api.Error)`
 //  - `inputStruct` is a struct{} containing a field for each service input (with valid reflect.Type)
 //  - `outputStruct` is a struct{} containing a field for each service output (with valid reflect.Type)
 //
 // Special cases:
-//  - it there is no input, `inputStruct` can be omitted
+//  - it there is no input, `inputStruct` must be omitted
-//  - it there is no output, `outputStruct` can be omitted
+//  - it there is no output, `outputStruct` must be omitted
-func Build(fn HandlerFn, service config.Service) (*Handler, error) {
+func Build(fn interface{}, service config.Service) (*Handler, error) {
 	h := &Handler{
 		spec: makeSpec(service),
 		fn:   fn,
@@ -39,7 +39,7 @@ func Build(fn HandlerFn, service config.Service) (*Handler, error) {
 	return h, nil
 }
 
-// Handle binds input @data into HandleFn and returns map output
+// Handle binds input @data into the dynamic function and returns map output
 func (h *Handler) Handle(data map[string]interface{}) (map[string]interface{}, api.Error) {
 	fnv := reflect.ValueOf(h.fn)
 

dynamic/types.go

@@ -2,13 +2,10 @@ package dynamic
 
 import "reflect"
 
-// HandlerFn defines a dynamic handler function
-type HandlerFn interface{}
-
 // Handler represents a dynamic api handler
 type Handler struct {
 	spec spec
-	fn   HandlerFn
+	fn   interface{}
 }
 
 type spec struct {

handler.go

@@ -16,7 +16,7 @@ type handler struct {
 
 // createHandler builds a handler from its http method and path
 // also it checks whether the function signature is valid
-func createHandler(method, path string, service config.Service, fn dynamic.HandlerFn) (*handler, error) {
+func createHandler(method, path string, service config.Service, fn interface{}) (*handler, error) {
 	method = strings.ToUpper(method)
 
 	dynHandler, err := dynamic.Build(fn, service)

server.go

@@ -6,7 +6,6 @@ import (
 	"os"
 
 	"git.xdrm.io/go/aicra/datatype"
-	"git.xdrm.io/go/aicra/dynamic"
 	"git.xdrm.io/go/aicra/internal/config"
 )
 
@@ -47,7 +46,7 @@ func New(configPath string, dtypes ...datatype.T) (*Server, error) {
 }
 
 // Handle sets a new handler for an HTTP method to a path
-func (s *Server) Handle(method, path string, fn dynamic.HandlerFn) error {
+func (s *Server) Handle(method, path string, fn interface{}) error {
 	// find associated service
 	var found *config.Service = nil
 	for _, service := range s.config.Services {