I have a series of promises that I need to execute sequentially, but it's getting messy with all the promise returns. To simplify this process, I decided to use the async library and tried out the parallel method. However, instead of running one after the other, my promises were running independently as they should.
Interestingly, all the console.logs were appearing before the promises had finished executing.
async.parallel([
(cb) => {
console.log ("hi")
grabMeData(Args)
.then((data) => {
// Promise completed, moving on to the next function
cb();
}).catch(()=>console.log('err'));
},
(callback) => {
// Previous promise done, I'm the callback
Query.checkUserExists()
.then(() => {
if(Query.error) {
console.log(Query.error); // Handle error
return; // Return to client if necessary
}
callback();
});
},
() => {
// Previous promise resolved, I'm the callback
// Originally asynchronous
if (Query.accAlreadyCreated) {
this.NewUserModel.user_id = Query.user_id;
this.generateToken();
} else {
console.log("account not created");
}
console.log('xx')
}
], () =>{
console.log("Finished executing async parallel")
});
Do you know why my callbacks are running before the promises are resolved (.then)?