I am trying to filter those records ids that have isPaymentCompleted: true inside the arr_object but the condition is that the last object's boolean value must be false. All the other objects' boolean values must be actual if there is…
I am trying to connect to my database on mongodb and fetch some data from it. But right after establishing a connection the terminal stalls and I have to ctrl+C. This is my code const express = require('express'); const mongoose…
Hope and appreciate to get some explanation for the following The problem is about dates, and I know I could use a package like moments, though, in this situation I don't need to use dates that much. I also know…
I am passing data from a db load query into my script, and having a useEffect to update the existing data. This is for some reason causing the UE to run infinitely. useEffect as follow, with it called by the…
import express from"express" import cors from "cors" import mongoose from "mongoose" import bodyParser from'body-parser' // const {Schema} = mongoose; const app = express() app.use(bodyParser.json()) app.use(bodyParser.urlencoded({extended: true})) app.use(cors()) await mongoose.connect('mongodb://127.0.0.1:27017/loginRegisterDB',{ useNewUrlParser: true, useUnifiedTopology: true },) .then(() => console.log( "connected")) .catch((err) =>…
I would like to know how to subtract the nested array object field values in mongodb. { Active: [ {min: 1, energy: 24}, {min: 2, energy: 34}, {min: 3, energy: 65} ] } Expected output: Difference: 65-24 = 41 I…
I am working on a project, in which I have used mongoDb as database. I am working on the cron, in which there was high mongoDb input/output operations, i.e. there was around 10k/s i/o operations on mongoDb including get, insert…
So I have a key value object project { name: "", createdBy: "some object id", sharedWith: { //here is a key value object to find by name "645c9bfe68c1438ef182bc26": { write: true } } } So I have to find all…
I have made login/signup page and the corresponding routes using NodeJS. The problem i am facing is that on clicking submit button, signup route is calling but the data is not transferring in request body. this error message is showing…
{ field_name: { $not: { $lt: 100 } } } How do I write the above using MongoDB aggregation language? I cannot use: { $gte: ["$field_name", 100] } because field_name may be missing. When it is missing, then it should…