Note: other answers are for older versions. version : 2.18 I am using MongoDb.Driver with C# and want to create an Index only if it does not exist. There is no method to check the existence of an Index and…
My data has the following format: [ { "level_1": "A", "cols": [ "A", "B" ], "arno": "DC", "table": [ { country: "NO", population: 400, color: "red" }, { country: "AE", population: 100, color: "red" }, { country: "OT", population: 200,…
My main function is I am creating a link-shortening app. When someone entered a long URL, it will give a short URL. If the user clicked on the short link it will search for the long URL on the DB…
As a getting-started project with express and MongoDB, I am creating a simple API that will return a joke. For that, I am making a way for users to send a POST request with the joke type and joke in…
I am new to mongodb and I am struggling to understand something that I think should be pretty simple, maybe you can point me out in the right direction! Lets say I have the following single document in a collection:…
This same code was working perfect the other day, now its not working... it appears it has something to do with access controls but I cant figure it out. I found a similar issue on StackOverflow, however, I am not…
I am making a social media backend. I save post added by the used in a Post model and user data in a User model. GITHUB_REPO_LINK_AT_END NOTE: UserSchema have a Schema.TypesOf.ObjectId Reference To POST Model. User_Model_&_Post_Model_are_provided_in_the_end To get all posts…
How to use MongoDB runCommand method in java? i'm using this db.runCommand( { explain: { update: "info.asset", updates: [ { q: { "version": 3,"providerAssetId":"123" }, u: { $set: { "version": 9 } }, hint: { providerAssetId: 1, version: -1 }…
projectStage := bson.D{ {"$project", bson.D{ {"_id", 0}, {"name", "$_id"}, {"total", 1}, {"totalPagu", 1}, {"idpagu", 1}, {"pdn", bson.D{ {"$round", bson.D{ {"pdn", 1}, }}, }, }}, }, } I get an error here message: $round only supports numeric types, not object How…
app.get('/all-datas', (req, res) => { data.find({}, function (err, names) { res.render('EJS.ejs', { nameList: Uname }) }) }) I want this code to be used in my javaScript but when http://localhost:5000/all-datas is accessed this the page does not render and keeps…