How to use “await” in sails when creating a new record

问题

I want to use "await"

According to the sails documentation I act as follows:
https://sailsjs.com/documentation/reference/waterline-orm/models/create

create: function (req, res, next) {

var new_place = await Place.create({...}, function place_created(err, XX){

  if(err && err.invalidAttributes) {
    return res.json({'status':false, 'errors':err.Errors});
  } 
}).fetch();
if(new_place){
  console.log(new_place);
  res.json({'status':true,'result':new_place});
 }
},

But I get the following Error:

var new_place = await Place.create({...}, function place_created(err, XX){
                ^^^^^
SyntaxError: await is only valid in async function

what should I do to fix this.

回答1:

SyntaxError: await is only valid in async function

This is because you are using await in a function that is not async

Remember, the await keyword is only valid inside async functions. If you use it outside of an async function's body, you will get a SyntaxError.

Source MDN async function

You need to make the function async for it to work. Making those changes in your code,

'use strict';

create: async function(req, res, next) {
        var new_place = await Place.create({ ... }, function place_created(err, XX) {
            if (err && err.invalidAttributes) {
                return res.json({ 'status': false, 'errors': err.Errors });
            }
        }).fetch();
        if (new_place) {
            console.log(new_place);
            res.json({ 'status': true, 'result': new_place });
        }
    },

回答2:

I think you should make your function async.

 async(function(){
   var new_place = await Place.create({...})
})();

And if you are using await you should not use callbacks. You should manage the response as explained here

Also you can check this guide of how to manage async in sail.js

来源：https://stackoverflow.com/questions/49594267/how-to-use-await-in-sails-when-creating-a-new-record

标签

node.js

sails.js