Problem with GET /api/library/folders

[sichengzhu]

Hello. I have used library API (api/library/folders) to get the folders of a project. But whatever project_id I used, it returned always the same folders of one of my projects. 

my code like this:

var express = require("express");
var router = express.Router();
var axios = require("axios");
const b360api = require("../public/javascripts/BIM360API");
const URLS = require("../public/javascripts/b360Urls");
router.post("/", (req, response) => {
  console.log("project_id in request: ", req.body);
  //#region
  // const folderUrl = b360api.transGetUrl(URLS.baseUrl + URLS.folders, {
  //   project_id: "123",
  //   ticket: b360api.TICKET,
  // });
//#endregion
  const testUrl =
    URLS.baseUrl +
    URLS.folders +
    `?project_id=${req.body.project_id}&ticket=${b360api.TICKET}`;
 
  console.log("full Url: ", testUrl);
   axios
    .get(testUrl)
    .then((res) => {
      const data = res.data;      
      console.log("id of firstFolder: ",data[0].id);
      response.send(data);
    })
    .catch((err) => {
      response.send(err.message);
    });
});

module.exports = router;

I have made several requests like . I have changed the project_id and even changed project_id to 123 or null, and got the same result. 

Result