How do I make sure that a mongoose query has completed before returning the result?












1















I have this code to get the inventory in my game:



async function(username) {
return await User.findOne({ username: username }).lean().inventory;
}


Currently, I run this function in a socket.on that should return the data:



socket.on('give inventory', function() {
console.log(connections[socket.id])
itemmanage.getInventory(connections[socket.id]).then(function(result) {
console.log(result);
socket.emit("get inventory", result);
})
});


However, this doesn't return the data. Instead, it just returns undefined. How do I make it return the data instead of undefined? Everything I've tried still returns undefined.










share|improve this question

























  • It seems that the statement to right of await statement does not return a promise.

    – sai.raj
    Nov 17 '18 at 2:56
















1















I have this code to get the inventory in my game:



async function(username) {
return await User.findOne({ username: username }).lean().inventory;
}


Currently, I run this function in a socket.on that should return the data:



socket.on('give inventory', function() {
console.log(connections[socket.id])
itemmanage.getInventory(connections[socket.id]).then(function(result) {
console.log(result);
socket.emit("get inventory", result);
})
});


However, this doesn't return the data. Instead, it just returns undefined. How do I make it return the data instead of undefined? Everything I've tried still returns undefined.










share|improve this question

























  • It seems that the statement to right of await statement does not return a promise.

    – sai.raj
    Nov 17 '18 at 2:56














1












1








1








I have this code to get the inventory in my game:



async function(username) {
return await User.findOne({ username: username }).lean().inventory;
}


Currently, I run this function in a socket.on that should return the data:



socket.on('give inventory', function() {
console.log(connections[socket.id])
itemmanage.getInventory(connections[socket.id]).then(function(result) {
console.log(result);
socket.emit("get inventory", result);
})
});


However, this doesn't return the data. Instead, it just returns undefined. How do I make it return the data instead of undefined? Everything I've tried still returns undefined.










share|improve this question
















I have this code to get the inventory in my game:



async function(username) {
return await User.findOne({ username: username }).lean().inventory;
}


Currently, I run this function in a socket.on that should return the data:



socket.on('give inventory', function() {
console.log(connections[socket.id])
itemmanage.getInventory(connections[socket.id]).then(function(result) {
console.log(result);
socket.emit("get inventory", result);
})
});


However, this doesn't return the data. Instead, it just returns undefined. How do I make it return the data instead of undefined? Everything I've tried still returns undefined.







node.js mongoose socket.io






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited Nov 18 '18 at 22:24









Neil Lunn

98k23174184




98k23174184










asked Nov 17 '18 at 2:48









William WhittWilliam Whitt

82




82













  • It seems that the statement to right of await statement does not return a promise.

    – sai.raj
    Nov 17 '18 at 2:56



















  • It seems that the statement to right of await statement does not return a promise.

    – sai.raj
    Nov 17 '18 at 2:56

















It seems that the statement to right of await statement does not return a promise.

– sai.raj
Nov 17 '18 at 2:56





It seems that the statement to right of await statement does not return a promise.

– sai.raj
Nov 17 '18 at 2:56












1 Answer
1






active

oldest

votes


















0














 async function(username) {
const data = await User.findOne({ username: username }).lean();
return data.inventory;
}

socket.on('give inventory', async function() {
try{
console.log(connections[socket.id])
const result = await itemmanage.getInventory(connections[socket.id]);
console.log(result);
socket.emit("get inventory", result);
}catch(err){
//code for handleing error
}
});





share|improve this answer


























  • that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

    – William Whitt
    Nov 17 '18 at 5:44













Your Answer






StackExchange.ifUsing("editor", function () {
StackExchange.using("externalEditor", function () {
StackExchange.using("snippets", function () {
StackExchange.snippets.init();
});
});
}, "code-snippets");

StackExchange.ready(function() {
var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);

StackExchange.using("externalEditor", function() {
// Have to fire editor after snippets, if snippets enabled
if (StackExchange.settings.snippets.snippetsEnabled) {
StackExchange.using("snippets", function() {
createEditor();
});
}
else {
createEditor();
}
});

function createEditor() {
StackExchange.prepareEditor({
heartbeatType: 'answer',
autoActivateHeartbeat: false,
convertImagesToLinks: true,
noModals: true,
showLowRepImageUploadWarning: true,
reputationToPostImages: 10,
bindNavPrevention: true,
postfix: "",
imageUploader: {
brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
allowUrls: true
},
onDemand: true,
discardSelector: ".discard-answer"
,immediatelyShowMarkdownHelp:true
});


}
});














draft saved

draft discarded


















StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53347745%2fhow-do-i-make-sure-that-a-mongoose-query-has-completed-before-returning-the-resu%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown

























1 Answer
1






active

oldest

votes








1 Answer
1






active

oldest

votes









active

oldest

votes






active

oldest

votes









0














 async function(username) {
const data = await User.findOne({ username: username }).lean();
return data.inventory;
}

socket.on('give inventory', async function() {
try{
console.log(connections[socket.id])
const result = await itemmanage.getInventory(connections[socket.id]);
console.log(result);
socket.emit("get inventory", result);
}catch(err){
//code for handleing error
}
});





share|improve this answer


























  • that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

    – William Whitt
    Nov 17 '18 at 5:44


















0














 async function(username) {
const data = await User.findOne({ username: username }).lean();
return data.inventory;
}

socket.on('give inventory', async function() {
try{
console.log(connections[socket.id])
const result = await itemmanage.getInventory(connections[socket.id]);
console.log(result);
socket.emit("get inventory", result);
}catch(err){
//code for handleing error
}
});





share|improve this answer


























  • that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

    – William Whitt
    Nov 17 '18 at 5:44
















0












0








0







 async function(username) {
const data = await User.findOne({ username: username }).lean();
return data.inventory;
}

socket.on('give inventory', async function() {
try{
console.log(connections[socket.id])
const result = await itemmanage.getInventory(connections[socket.id]);
console.log(result);
socket.emit("get inventory", result);
}catch(err){
//code for handleing error
}
});





share|improve this answer















 async function(username) {
const data = await User.findOne({ username: username }).lean();
return data.inventory;
}

socket.on('give inventory', async function() {
try{
console.log(connections[socket.id])
const result = await itemmanage.getInventory(connections[socket.id]);
console.log(result);
socket.emit("get inventory", result);
}catch(err){
//code for handleing error
}
});






share|improve this answer














share|improve this answer



share|improve this answer








edited Nov 17 '18 at 6:18

























answered Nov 17 '18 at 3:26









Biplab MalakarBiplab Malakar

41837




41837













  • that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

    – William Whitt
    Nov 17 '18 at 5:44





















  • that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

    – William Whitt
    Nov 17 '18 at 5:44



















that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

– William Whitt
Nov 17 '18 at 5:44







that returns Promise {pending} Edit: Added await to the result const and that fixed it, thanks!

– William Whitt
Nov 17 '18 at 5:44




















draft saved

draft discarded




















































Thanks for contributing an answer to Stack Overflow!


  • Please be sure to answer the question. Provide details and share your research!

But avoid



  • Asking for help, clarification, or responding to other answers.

  • Making statements based on opinion; back them up with references or personal experience.


To learn more, see our tips on writing great answers.




draft saved


draft discarded














StackExchange.ready(
function () {
StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f53347745%2fhow-do-i-make-sure-that-a-mongoose-query-has-completed-before-returning-the-resu%23new-answer', 'question_page');
}
);

Post as a guest















Required, but never shown





















































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown

































Required, but never shown














Required, but never shown












Required, but never shown







Required, but never shown







這個網誌中的熱門文章

Academy of Television Arts & Sciences

L'Équipe

1995 France bombings