function

  function inventory(userID) {

    const getInfo = new Promise ((resolve,error) => {

      var data;

      function newInventory() {
        var arr = sample;
        var toPush = { 'userid': userID, 'inventory': [] }
        var toPush2 = { 'itemid': '420', 'name': 'weed', 'quantity': '2' }
        toPush.inventory.push(toPush2)
        arr.inventories.push(toPush)
        fs.writeFile ("./info/sample.json", JSON.stringify(arr, null, 2), function(err) {
          if (err) throw err;
        });
        data = toPush; return resolve(data);
      }

      function oldInventory() {
        var i =0;
        var total = sample.users.length;
        var ids = [];
        for(; i < total; i++) {
           ids.push( sample.users[ i ].id );
        }
        var found = ids.find(function(element) {
          return element == userID;
        });
        if (found != userID) { addUser(); }
        else if (found == userid) {
          //get tha inventory of this guy by id
          });
          data = vals; returnData();
        }
      }

      function runChain() {

      }

    })

  }