fill nested fields in path

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

http_test.go

@@ -6,7 +6,8 @@ import (
 	"testing"
 )
 
-type Request struct {
+type request struct {
+	Nested   *request `json:"nested"`
 	Name     string   `json:"name"`
 	Field1   string   `json:"field1"`
 	ClientID string
@@ -14,8 +15,23 @@ type Request struct {
 	Field3   int64
 }
 
+func TestNestedPath(t *testing.T) {
+	req := &request{Name: "first", Nested: &request{Name: "second"}, Field1: "fieldval"}
+	p, _, err := newPathRequest("/api/v1/{name}/{nested.name}", "GET", "", req, []string{"json", "protobuf"}, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	u, err := url.Parse(p)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if u.String() != "/api/v1/first/second?field1=fieldval" {
+		t.Fatal("nested path error")
+	}
+}
+
 func TestPathWithHeader(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1", ClientID: "1234567890"}
+	req := &request{Name: "vtolstov", Field1: "field1", ClientID: "1234567890"}
 	p, m, err := newPathRequest(
 		"/api/v1/test?Name={name}&Field1={field1}",
 		"POST",
@@ -40,7 +56,7 @@ func TestPathWithHeader(t *testing.T) {
 }
 
 func TestPathValues(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1"}
+	req := &request{Name: "vtolstov", Field1: "field1"}
 	p, m, err := newPathRequest("/api/v1/test?Name={name}&Field1={field1}", "POST", "*", req, nil, nil)
 	if err != nil {
 		t.Fatal(err)
@@ -56,7 +72,7 @@ func TestPathValues(t *testing.T) {
 }
 
 func TestValidPath(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
+	req := &request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
 	p, m, err := newPathRequest("/api/v1/{name}/list", "GET", "", req, nil, nil)
 	if err != nil {
 		t.Fatal(err)
@@ -73,7 +89,7 @@ func TestValidPath(t *testing.T) {
 }
 
 func TestInvalidPath(t *testing.T) {
-	req := &Request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
+	req := &request{Name: "vtolstov", Field1: "field1", Field2: "field2", Field3: 10}
 	_, _, err := newPathRequest("/api/v1/{xname}/list", "GET", "", req, nil, nil)
 	if err == nil {
 		t.Fatal("path param must not be filled")

util.go

@@ -87,6 +87,7 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 
 	values := url.Values{}
 	// copy cycle
+
 	for i := 0; i < tmsg.NumField(); i++ {
 		val := tmsg.Field(i)
 		if val.IsZero() {
@@ -121,6 +122,7 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 			default:
 				t = &tag{key: tn, name: tp[0]}
 			}
+
 			if t.name != "" {
 				break
 			}
@@ -159,6 +161,28 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 				tnmsg.Field(i).Set(val)
 			}
 		} else {
+			isSet := false
+			for k, v := range fieldsmap {
+				if v != "" {
+					continue
+				}
+				fld := msg
+
+				parts := strings.Split(k, ".")
+				for idx := 0; idx < len(parts); idx++ {
+					name := strings.Title(parts[idx])
+					fld, err = rutil.StructFieldByName(fld, name)
+					if err != nil {
+						break
+					}
+					if len(parts)-1 == idx {
+						isSet = true
+						fieldsmap[k] = fmt.Sprintf("%v", fld)
+					}
+				}
+			}
+
+			if !isSet {
 				if val.Type().Kind() == reflect.Slice {
 					for idx := 0; idx < val.Len(); idx++ {
 						values.Add(t.name, getParam(val.Index(idx)))
@@ -168,6 +192,7 @@ func newPathRequest(path string, method string, body string, msg interface{}, ta
 				}
 			}
 		}
+	}
 
 	// check not filled stuff
 	for k, v := range fieldsmap {