Promises in Sequelize: how to get results from each promise

Question

In Sequelize >=1.7 we can use promises

Can you explain for me how can i get values from each user in this code:

var User = sequelize.define(\"user\", {
          


        

Answer 1

The Bluebird way are the collection helper functions.

If you want to create them in parallel, use map:

User.sync({ force: true })
  .then(function() {
    return Promise.map( ['John', 'Jane', 'Pete'], function(name) {
      return User.create({ username: name });
    })
  }).spread(function(john, jane, pete) {
    console.log("we just created 3 users :)")
    console.log("this is john:")
    console.log(john.values)
    console.log("this is jane:")
    console.log(jane.values)
    console.log("this is pete:")
    console.log(pete.values)
  })

If you need to create them consecutively, just change it to mapSeries (3.0+).

If the array doesn't need to be dynamic, and you simply want to pass a shared value through the promise chain like in your example, have a look at How do I access previous promise results in a .then() chain?.