Add name, time, path and string field options to JSON parser (#4351)

plugins/inputs/httpjson/httpjson.go

@@ -181,7 +181,12 @@ func (h *HttpJson) gatherServer(
 		"server": serverURL,
 	}
 
-	parser, err := parsers.NewJSONParser(msrmnt_name, h.TagKeys, tags)
+	parser, err := parsers.NewParser(&parsers.Config{
+		DataFormat:  "json",
+		MetricName:  msrmnt_name,
+		TagKeys:     h.TagKeys,
+		DefaultTags: tags,
+	})
 	if err != nil {
 		return err
 	}