[do not merge] try to solve postproduct with promise

[xIrusux]

No description provided.

[quarenw]

Nothing is being returned by this arrow function. .then() is only a function of a promise as such you would need to have this arrow function return a promise explicitly by creating it directly:

.then() => {
  return new Promise ((resolve, reject) => {
   ... rest of code

but there is no need as the getProductsByName(prodName) call is returning connection.query (which is this essentially http://vitaly-t.github.io/pg-promise/Database.html#query) and so is returning a promise. So you can just return that on line 28
return getProductByName(prodName) so that the promise returned by connection.query gets returned by that and it can be used in the .then() on line 29