Ignore $in if empty array is provided

I have the following model: export type IMangaModel = Document & { _id: string; title: string; description: string; demographic: Array; genre: Array; tags: …

Handling Mongoose Query Errors in Express.js

So let’s say I want to make a Mongoose query to a database, inside of an Express post route: app.post(“/login”,(req,res)=>{ const username = req.body.username const password = req….

Mongo shell query is not working on mongoose

I have written a shell query which works perfectly on mongo shell but is not returning any value when run using mongoose in nodejs + typescript; Mongo shell db.userworks.aggregate([ { $…

MongoDB/Mongoose – Find all where a specific Date is in a Date Range

for example I have documents with this field: startDate: 2021-04-14T22:00:00.000+00:00 endDate: 2021-04-19T22:00:00.000+00:00 and I want to get all documents where a specific date (like today) is in …

How to exclude an array of objects from mongoose find?

Lets pretend my collection holds following elements: const Item = mongoose.Schema({ type: { type: String }, group: { type: Number } }); [ { type: “A”, group: 1 }, { type: “…

How do I query the database using Mongodb after I set up a Mongoose schema for authentication?

I successfully set up authentication for my app, which is a node.js (Express) app. I used Passport-local and I also used a Mongoose schema. The folder structure is like this: app – app.js – config …

How to find a document with an array of strings based on if it has items in common with a reference array of string?

Given a reference array of strings: [“Comedy”, “Horror”, “Romance”], I would like to query a Movie model with this schema: const MovieSchema = new Schema({ _id: { …

Mongoose update Sub-Document

How to updating sub-document in mongoose: this is my JSON DATA [ { _id: “60215bb12390573490fb30c4”, publishedAt: “2021-02-08T15:41:28.562Z”, comments: [ { messageAt: “2021-02-…

Not getting output while trying db.find() in Mongodb

Recently i have started learning mongodb and started to make a simple application that will just display the data present in my database. Here’s the code: var mongoose = require(“mongoose”); …

Uncaught TypeError: Cannot read property ‘collection’ of null

I’ve been trying to get data out of a collection, but it returns me Uncaught TypeError: Cannot read property ‘collection’ of null. The Mongo database itself is connected with the cloud and checking …