fixed conversion

extractors/extract_request.go

@@ -5,6 +5,8 @@ import (
 	"errors"
 	"net/http"
 	"reflect"
+
+	"github.com/spf13/cast"
 )
 
 type ParserType string
@@ -70,13 +72,40 @@ func prepareInlineStructFields(request *http.Request, value reflect.Value, prepa
 				if parsedValue.Kind() == reflect.ValueOf(nil).Kind() {
 					return errors.New("in request does not exist query param with name: " + parsedTag)
 				}
-				val.Set(parsedValue)
+				setValueToType(val, parsedValue.String())
 			}
 		}
 	}
 	return nil
 }
 
+func setValueToType(val reflect.Value, parsedValue string) error {
+	if val.CanSet() {
+		return errors.New("can not setting value to this field: " + val.Addr().String())
+	}
+	switch val.Kind() {
+	case reflect.Int:
+		val.Set(reflect.ValueOf(cast.ToInt(parsedValue)))
+	case reflect.Int16:
+		val.Set(reflect.ValueOf(cast.ToInt16(parsedValue)))
+	case reflect.Int32:
+		val.Set(reflect.ValueOf(cast.ToInt32(parsedValue)))
+	case reflect.Int64:
+		val.Set(reflect.ValueOf(cast.ToInt64(parsedValue)))
+	case reflect.Float32:
+		val.Set(reflect.ValueOf(cast.ToFloat32(parsedValue)))
+	case reflect.Float64:
+		val.Set(reflect.ValueOf(cast.ToFloat64(parsedValue)))
+	case reflect.String:
+		val.Set(reflect.ValueOf(parsedValue))
+	case reflect.Bool:
+		val.Set(reflect.ValueOf(cast.ToBool(parsedValue)))
+	default:
+		return errors.New("error while setting up")
+	}
+	return nil
+}
+
 func getValueInAllExtractors(parsedTag string, request *http.Request, extractors []extractor) reflect.Value {
 	for _, extractFunc := range extractors {
 		if res := extractFunc(parsedTag, request); res != nil {

go.mod

@@ -2,16 +2,18 @@ module github.com/kubitre/go_api_infra
 
 go 1.17
 
+require github.com/gorilla/mux v1.8.0
+
 require (
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.1.2 // indirect
 	github.com/golang/protobuf v1.5.2 // indirect
-	github.com/gorilla/mux v1.8.0
 	github.com/matttproud/golang_protobuf_extensions v1.0.1 // indirect
 	github.com/prometheus/client_golang v1.12.1 // indirect
 	github.com/prometheus/client_model v0.2.0 // indirect
 	github.com/prometheus/common v0.32.1 // indirect
 	github.com/prometheus/procfs v0.7.3 // indirect
+	github.com/spf13/cast v1.4.1 // indirect
 	golang.org/x/sys v0.0.0-20220114195835-da31bd327af9 // indirect
 	google.golang.org/protobuf v1.26.0 // indirect
 )

go.sum

@@ -180,6 +180,8 @@ github.com/rogpeppe/go-internal v1.3.0/go.mod h1:M8bDsm7K2OlrFYOpmOWEs/qY81heoFR
 github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
+github.com/spf13/cast v1.4.1 h1:s0hze+J0196ZfEMTs80N7UlFt0BDuQ7Q+JDnHiMWKdA=
+github.com/spf13/cast v1.4.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=

response/response.go

@@ -54,7 +54,9 @@ func (responser *ApiResponse) writeResponse(status int, body interface{}) {
 	}
 
 	responser.ResponseWriter.WriteHeader(status)
-	responser.ResponseWriter.Write(respBody)
+	if body != nil {
+		responser.ResponseWriter.Write(respBody)
+	}
 }
 
 func (responser *ApiResponse) Ok(entity interface{}) {