{
 "layers": [
  {
   "layerId": 1,
   "layerName": "DPMGISADMIN.OSM_TH_Road",
   "layerType": "Feature Layer",
   "minScale": 0,
   "maxScale": 0,
   "legend": [
    {
     "label": "primary",
     "url": "b507230e1a4c1267276fd9c432bd699d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVElEQVQ4jWNhoDJgGTWQYsAyMg10CA1lqH/9msGBEoNERRkOrF7N0MgCMmzVKsoMgwKHsDBaeHn1aoZGkMlU8zIDA5hxgGouZKAyYBk1kGIw+MMQAGI+FGrYb+BQAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "primary"
     ]
    },
    {
     "label": "primary_link",
     "url": "b507230e1a4c1267276fd9c432bd699d",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAAVElEQVQ4jWNhoDJgGTWQYsAyMg10CA1lqH/9msGBEoNERRkOrF7N0MgCMmzVKsoMgwKHsDBaeHn1aoZGkMlU8zIDA5hxgGouZKAyYBk1kGIw+MMQAGI+FGrYb+BQAAAAAElFTkSuQmCC",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "primary_link"
     ]
    },
    {
     "label": "secondary",
     "url": "747d51709493e0d766181f0830ee4e8b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4je3SQQ0AMAhD0R7wBXNWZwNnCxrWndgX8JImNYizD15nc8EQedlgkNzufiVVFUiuJ5OzZeXkLjHuNrJMR2EqeABuLgySDpomQwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "secondary"
     ]
    },
    {
     "label": "secondary_link",
     "url": "747d51709493e0d766181f0830ee4e8b",
     "imageData": "iVBORw0KGgoAAAANSUhEUgAAABQAAAAUCAYAAACNiR0NAAAACXBIWXMAAA7EAAAOxAGVKw4bAAAARklEQVQ4je3SQQ0AMAhD0R7wBXNWZwNnCxrWndgX8JImNYizD15nc8EQedlgkNzufiVVFUiuJ5OzZeXkLjHuNrJMR2EqeABuLgySDpomQwAAAABJRU5ErkJggg==",
     "contentType": "image/png",
     "groupId": "0",
     "height": 20,
     "width": 20,
     "values": [
      "secondary_link"
     ]
    }
   ],
   "legendGroups": [
    {
     "id": "0",
     "heading": "ลำดับศักดิ์ถนน"
    }
   ]
  }
 ]
}