Route for handling user action (SlackAppDemo)

Aciton.js

router.post('/actions', async (req, res) => {
    try {
      const payload = JSON.parse(req.body.payload);
      console.log("###slack request is "+payload);
      
      var response = "";
      if (payload.callback_id === 'query_selection') {
        console.log("option selected is "+payload.actions[0].selected_options[0].value);
        switch (payload.actions[0].selected_options[0].value) {
          case "openIssues":
            response = openIssues;
            break;
          case "closedIssues":
            response = closedIssues;
            break;
          case "milestones":
            response = milestones;
            break;
          case "note":
            response = productNote;
            break;
          case "crashReport":
            response = crashReport;
            break;
          default:
            response = "None of the cases";
        }
      }
      return res.send(response);
    } catch (err) {
      console.log(err);
      return res.status(500).send('Something went wrong.');
    }
  });