node.js - How to make co in function getByName() return after execution

Question

Determine user login in express (using sequelize and co)
However, the information in console.log is only seen after return res. How to make the function in co return after executing it?

Answer 1

Generally, a Promise is returned, and it must be thened wherever used.

UserBLL.GetByName = function(name) {
    return co(function() {
        return yield User.findOne({where: {username: name}})
    })
}

UserBLL.GetByName('xxx').then(function(res) {
    console.log(res)
})

Answer 2

UserBil.getByName = () => {
    var result = co.wrap(function* (){
        return request
        // something you want to return 
    })
    
    return result(true).then(function(value){
      return value
    })
}