I have a collection in mongo, let's call it Parent, with a property called children, something like this const ParentSchema = mongoose.Schema({ children: [{ //children properties }], //other collection properties When I save a record in this collection, every child…
I am trying to connect to Mongodb from my first node project.I am using Mongoose to achieve that. However, mongoose.connect() gives me MongoParseError error. Complete error: MongoParseError: options connections, models, events, __driver, options, _pluralize, schema, model, plugins, default, mongoose, cast,…
I am trying to merge an object inside an array with the same date but with a different key name for the status key. I have 2 collections users and canteens The query I am trying to get the result…
I am trying to send the form data to backend MongoDB using Axios. The API is working fine if post request is sent from postman, but fails to hit the API if request comes from the frontend. I have attached…
in mongodb my image is saved as image: BinData(0, 'QzpcZmFrZXBhdGhcV2hhdHNBcHAgSW1hZ2UgMjAyMi0xMi0wNCB40Ny4zMS5qcGc=') I am trying to access this image in my frontend Reactjs like this {userData.image ? <img src={data:image;base64,${userData.image}} alt="User profile image" width="200" height="200" /> : <img src={'./Images/profile.png'} alt="Default image" width="200" height="200"…
I have a Mongoose Schema: const UserSchema = new mongoose.Schema({ mail: { type: String, required: true }, password: { type: String, required: true }, folders: [ { folderName: { type: String, default: 'Main', required: true, }, files: [ { fileName:…
I tried to get a document using document.findOne() but it's value is showing undefined . Here is my code `app.post("/studentlogin",(req,res)=> { let password; console.log("login page"); bcrypt.hash(req.body.password,saltRounds,(err,hash)=> { const user= Student.findOne({srno:req.body.srno}); console.log(user.srno); if(req.body.srno==user.srno && hash==user.password) { session=req.username; session.userid=req.body.srno; res.redirect("/"); } else{…
i'm making a todolist (angela yu), i'm trying to write to a new database, but i keep getting error.this is the error: C:UserstunjiDesktopwebdevtodolist-v2-starting-filesnode_modulesmongooselibmodel.js:3519 for (let i = 0; i < error.writeErrors.length; ++i) { ^ TypeError: Cannot read properties of undefined…
The WithId generic that comes with Mongo's typescript library is highly useful in scenarios where you don't want to modify your existing interface/type for use with MongoDB such as: export class TagsCl { private publicTags: Promise<Array<WithId<ProductTag>>>; private allTags: Promise<Array<WithId<ProductTag>>>; private…
I have a collection with 1.3 million documents and my query script is following: db.UserBehaviorOnApp.aggregate([ { $match: {"accessTime" : { "$gte" : ISODate("2022-12-06T00:00:00Z"), "$lt" : ISODate("2023-01-05T23:59:59Z")}}}, { $group: { _id: "$appName", count: { $sum: 1 } } }, { $sort:…