How to know what all methods in mongoDb has an inbuilt promise in it. eg: "updateOne() , findOne()" these methods have inbuilt promises and and we can access the response using ".then" but for lots of other mongoDB methods lack…
I have two collections Categories and Subcategories inside a Categories collection. I have an array that is storing the ids of subcategories that are stored in Subcategories collection. Below is my document structure: Categories collection { id:65, title:"Automotive", active:true, subcategories:[35,28,30]…
when I execute this code it always returns the same message even if i send different email let message = ""; const findQuery = "select email from Users where email = ?"; const queryResult = await db.query(findQuery, [req.body.email]); if(queryResult[0] ===…
The Problem occurs while sending GET or any request with parameters in the URL. for example my index.js const express = require("express"); const bodyParser = require("body-parser"); const app = express(); app.use(bodyParser.urlencoded({ extended: true })); app.get("/:name", function (req, res) { let…
I want to access the name property. I tried doing the following but it returned undefined: Category.find() .select("-_id") .select("-__v") .then((categories) => { let creator = req.userId; console.log(categories.name) //undefined if (categories.creator === creator && categories.name === categoryName) { note .save() this…
I am working on a project and I've created a login page. I want to authenticate the user and keep the user logged in until he logs out. How do I do that using React, Express and MongoDB?
I am a beginner and starting to learn MongoDB, NodeJS and Express by creating a simple blog project. I facing a problem as my data cannot be stored in my MongoDB event though my MongoDB connects properly. There may be…
const queryMatch = {departureDate: {$gte: new Date(query.departureDateMin),$lte: new Date(query.departureDateMax)}}; const flightsByCriteria = await this.flightModel.find(queryMatch).exec(); The above request returns an empty table. And yet I get data with mongodbCompass using ISODate(dateString) instead of new Date(dateString) I don't know where the problem…
my code is : result = await mongoDBO.collection(collectionName).find({id: data.id},{projection : {'_id' : 0}}).toArray(); But I get the following error Unsupported projection option: projection: { _id: 0 }
I'm trying to connect to my MongoDB localhost but it just won't connect. What happens is when I go to /admin, it just keeps loading and I get no messages, no nothing in the logs. I have no idea why.…