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…
I got error "throw new MongooseError('Mongoose.prototype.connect() no longer accepts a callback');" const mogoURI = "mongodb://localhost:27017/?directConnection=true"; const connectToMongo = ()=>{ mongoose.connect(mogoURI,()=>{ console.log("Connected to Mongo Successfully"); }) } module.exports = connectToMongo;```
I am working on a MERN project that requires to fetch assets from database. The data is appearing in console but the same is not getting rendered into the table.There is no error on warning.image of the output with console…
I have collection of documents which has the following shape: const categorySchema = new Schema<ICategory>({ title: { type: String, required: true }, children: [{ type: Types.ObjectId, ref: categoryModelName }], }); I want to get all documents id of which is…