bluebird - How to print query in console.log in Node.js using Promises -


i can print query using callbacks, query.sql print query. need when using promises. using bluebird library promises.

i adding code elaborate problem , adding dummy text post question. otherwise stackoverflow doesn't want let me post question , insist me add context explain code sections.

// sample code  let query = conn.query('select * table ', (err,rows) => {     console.log(query.sql); });

please explain

// actual code const qry = `select * field_slot             field_id = 36             , day = lower(substr((dayname('"+req.body.date+"')),1,3))             , slot_id not in              (select slot_id match_schedules field_id =                  ${req.body.field_id}                 , datetime_from between '2017-09-03 19:00:00' , '2017-09-03 23:59:59')`;  console.log(qry);  promise.using(mysql.getsqlconn(), conn => {      conn.query(qry).then(slots => {          res.json({ status: 200, data: slots });      }).catch(err => {          res.json({ status: 500, message: 'error ' + err });      }); });


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