I am attempting to export the result of a MongoDB collection using
exports.getAllQuestions = async function (){
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var dbo = db.db("Time4Trivia");
return dbo.collection("Questions").find({}).toArray().then();
});
};
I am then referencing this return and attempting to render it in a jade file
router.get('/play', function(req, res, next) {
var questionsArray = mongoDAL.getAllQuestions()
console.log("This is the questions array: " + questionsArray)
res.render('play', { title: 'Time 4 Trivia',user: req.session.user, questions: questionsArray});
});
However, I am only returning an [promise object]. For example my console log returns
This is the questions array: [object Promise]
How would I go about actually sending the array to my jade file from my original file?
You just got your syntax mixed up a little, I recommend you go read about Promises and how to use them properly, the easiest way with your current syntax is to just wrap it with a promise:
exports.getAllQuestions = async function (){
return new Promise((resolve, reject) => {
MongoClient.connect(url, function(err, db) {
if (err) throw err;
var dbo = db.db("Time4Trivia");
return resolve(await dbo.collection("Questions").find({}).toArray())
});
})
};
Then you just need to wait for it:
var questionsArray = mongoDAL.getAllQuestions()
The code could be cleaned up using async/await syntax insted:
exports.getAllQuestions = async function (){
const db = await MongoClient.connect(url);
var dbo = db.db("Time4Trivia");
return await dbo.collection("Questions").find({}).toArray()
};