How do I input a NodeJS variable as a parameter in a MongoDB Query










0















I've read through every stack overflow I can find and I don't understand why this still isn't working.



I'm trying to construct a NodeJS Mongo find query and very simply want to use a variable as the values, the key does not need to be dynamic.



This is the code I was working with initially :



collection.find(project_id : project_id_val)



but this simply returns :



Found the following records





I've also tried constructing my own javascript object and passing that in e.g.



Query =



Query["project id"] = project_id_val



collection.find(query)



But that doesn't work either, I know the key/value pair is correct because
project_id: "12345" works absolutely fine, and returns exactly what I want it to. I feel like this should be very simple so if someone could let me know where I'm going wrong that would be great.



Thanks.










share|improve this question






















  • Welcome to SO! When you log out the value project_id_val do you get the value you are expecting? Is there a document in your database that corresponds with that value? Also, is the type of that value correct?

    – Max Baldwin
    Nov 14 '18 at 16:17











  • Is your project_id_val a number and your data in DB a string?

    – ankitjaininfo
    Nov 14 '18 at 16:24












  • Wow! I feel stupid, it was the type, I was inserting it as an int but for some reason when I was passing it as a parameter to my get API it classed the variable as a string. I changed it to a string in the MongoDB and it's working perfectly.

    – ryand88
    Nov 14 '18 at 16:39











  • @ryand88 glad you figured it out. One other thing, if it is a MongoDB Object Id, something you would see under _id, you should use the ObjectID type. Just wanted to point that out: docs.mongodb.com/manual/reference/method/ObjectId

    – Max Baldwin
    Nov 14 '18 at 16:56















0















I've read through every stack overflow I can find and I don't understand why this still isn't working.



I'm trying to construct a NodeJS Mongo find query and very simply want to use a variable as the values, the key does not need to be dynamic.



This is the code I was working with initially :



collection.find(project_id : project_id_val)



but this simply returns :



Found the following records





I've also tried constructing my own javascript object and passing that in e.g.



Query =



Query["project id"] = project_id_val



collection.find(query)



But that doesn't work either, I know the key/value pair is correct because
project_id: "12345" works absolutely fine, and returns exactly what I want it to. I feel like this should be very simple so if someone could let me know where I'm going wrong that would be great.



Thanks.










share|improve this question






















  • Welcome to SO! When you log out the value project_id_val do you get the value you are expecting? Is there a document in your database that corresponds with that value? Also, is the type of that value correct?

    – Max Baldwin
    Nov 14 '18 at 16:17











  • Is your project_id_val a number and your data in DB a string?

    – ankitjaininfo
    Nov 14 '18 at 16:24












  • Wow! I feel stupid, it was the type, I was inserting it as an int but for some reason when I was passing it as a parameter to my get API it classed the variable as a string. I changed it to a string in the MongoDB and it's working perfectly.

    – ryand88
    Nov 14 '18 at 16:39











  • @ryand88 glad you figured it out. One other thing, if it is a MongoDB Object Id, something you would see under _id, you should use the ObjectID type. Just wanted to point that out: docs.mongodb.com/manual/reference/method/ObjectId

    – Max Baldwin
    Nov 14 '18 at 16:56













0












0








0


0






I've read through every stack overflow I can find and I don't understand why this still isn't working.



I'm trying to construct a NodeJS Mongo find query and very simply want to use a variable as the values, the key does not need to be dynamic.



This is the code I was working with initially :



collection.find(project_id : project_id_val)



but this simply returns :



Found the following records





I've also tried constructing my own javascript object and passing that in e.g.



Query =



Query["project id"] = project_id_val



collection.find(query)



But that doesn't work either, I know the key/value pair is correct because
project_id: "12345" works absolutely fine, and returns exactly what I want it to. I feel like this should be very simple so if someone could let me know where I'm going wrong that would be great.



Thanks.










share|improve this question














I've read through every stack overflow I can find and I don't understand why this still isn't working.



I'm trying to construct a NodeJS Mongo find query and very simply want to use a variable as the values, the key does not need to be dynamic.



This is the code I was working with initially :



collection.find(project_id : project_id_val)



but this simply returns :



Found the following records





I've also tried constructing my own javascript object and passing that in e.g.



Query =



Query["project id"] = project_id_val



collection.find(query)



But that doesn't work either, I know the key/value pair is correct because
project_id: "12345" works absolutely fine, and returns exactly what I want it to. I feel like this should be very simple so if someone could let me know where I'm going wrong that would be great.



Thanks.







node.js mongodb






share|improve this question













share|improve this question











share|improve this question




share|improve this question










asked Nov 14 '18 at 16:14









ryand88ryand88

1




1












  • Welcome to SO! When you log out the value project_id_val do you get the value you are expecting? Is there a document in your database that corresponds with that value? Also, is the type of that value correct?

    – Max Baldwin
    Nov 14 '18 at 16:17











  • Is your project_id_val a number and your data in DB a string?

    – ankitjaininfo
    Nov 14 '18 at 16:24












  • Wow! I feel stupid, it was the type, I was inserting it as an int but for some reason when I was passing it as a parameter to my get API it classed the variable as a string. I changed it to a string in the MongoDB and it's working perfectly.

    – ryand88
    Nov 14 '18 at 16:39











  • @ryand88 glad you figured it out. One other thing, if it is a MongoDB Object Id, something you would see under _id, you should use the ObjectID type. Just wanted to point that out: docs.mongodb.com/manual/reference/method/ObjectId

    – Max Baldwin
    Nov 14 '18 at 16:56

















  • Welcome to SO! When you log out the value project_id_val do you get the value you are expecting? Is there a document in your database that corresponds with that value? Also, is the type of that value correct?

    – Max Baldwin
    Nov 14 '18 at 16:17











  • Is your project_id_val a number and your data in DB a string?

    – ankitjaininfo
    Nov 14 '18 at 16:24












  • Wow! I feel stupid, it was the type, I was inserting it as an int but for some reason when I was passing it as a parameter to my get API it classed the variable as a string. I changed it to a string in the MongoDB and it's working perfectly.

    – ryand88
    Nov 14 '18 at 16:39











  • @ryand88 glad you figured it out. One other thing, if it is a MongoDB Object Id, something you would see under _id, you should use the ObjectID type. Just wanted to point that out: docs.mongodb.com/manual/reference/method/ObjectId

    – Max Baldwin
    Nov 14 '18 at 16:56
















Welcome to SO! When you log out the value project_id_val do you get the value you are expecting? Is there a document in your database that corresponds with that value? Also, is the type of that value correct?

– Max Baldwin
Nov 14 '18 at 16:17





Welcome to SO! When you log out the value project_id_val do you get the value you are expecting? Is there a document in your database that corresponds with that value? Also, is the type of that value correct?

– Max Baldwin
Nov 14 '18 at 16:17













Is your project_id_val a number and your data in DB a string?

– ankitjaininfo
Nov 14 '18 at 16:24






Is your project_id_val a number and your data in DB a string?

– ankitjaininfo
Nov 14 '18 at 16:24














Wow! I feel stupid, it was the type, I was inserting it as an int but for some reason when I was passing it as a parameter to my get API it classed the variable as a string. I changed it to a string in the MongoDB and it's working perfectly.

– ryand88
Nov 14 '18 at 16:39





Wow! I feel stupid, it was the type, I was inserting it as an int but for some reason when I was passing it as a parameter to my get API it classed the variable as a string. I changed it to a string in the MongoDB and it's working perfectly.

– ryand88
Nov 14 '18 at 16:39













@ryand88 glad you figured it out. One other thing, if it is a MongoDB Object Id, something you would see under _id, you should use the ObjectID type. Just wanted to point that out: docs.mongodb.com/manual/reference/method/ObjectId

– Max Baldwin
Nov 14 '18 at 16:56





@ryand88 glad you figured it out. One other thing, if it is a MongoDB Object Id, something you would see under _id, you should use the ObjectID type. Just wanted to point that out: docs.mongodb.com/manual/reference/method/ObjectId

– Max Baldwin
Nov 14 '18 at 16:56












0






active

oldest

votes











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%2f53304509%2fhow-do-i-input-a-nodejs-variable-as-a-parameter-in-a-mongodb-query%23new-answer', 'question_page');

);

Post as a guest















Required, but never shown

























0






active

oldest

votes








0






active

oldest

votes









active

oldest

votes






active

oldest

votes















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%2f53304509%2fhow-do-i-input-a-nodejs-variable-as-a-parameter-in-a-mongodb-query%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

How to read a connectionString WITH PROVIDER in .NET Core?

In R, how to develop a multiplot heatmap.2 figure showing key labels successfully

Museum of Modern and Contemporary Art of Trento and Rovereto