I am using react js and using mongo db. i am trying to get data by fetch. but i get this type of error : Uncaught (in promise) SyntaxError: Unexpected end of JSON input const [product, setProduct] = useState({}); useEffect(()…
I try to delete an item from my UI. When I click delete button it's remove from database but not in UI. after reload my item page it's remove from UI.
So I have 2 arrays here, let say const users = [{_id:ObjectId("6274fb5b82bcc9b2ccc0a361"), name:p1, age:10}, {_id:ObjectId("6274fbc382bcc9b2ccc0a362"), name:p2, age:15}, {_id:ObjectId("6277a3d5b66c061096222bbd")}, name:p3, age:20]; const filterArray = [ObjectId("6274fbc382bcc9b2ccc0a362"),ObjectId("6277a3d5b66c061096222bbd")]; I want to filter result based on matching ObjectId, here's what I'm trying to do const…
In my application I have activity logs of users stored in my DB (mongoDB), Since a lot of logs are collected within 3 months I want to Delete all the activity log records older than 3 months from current date.…
i'm trying to loop over an array of objects, saving them to MongoDB and then add the returned ObjectIds to a parent Schema which then is also saved. I'm at a loss here. Everything gets saved correctly but the Recipe…
const [product, setProduct] = useState({}); useEffect(() => { const url = `http://localhost:5000/product/${id}`; fetch(url) .then(res => res.json()) .then(data => setProduct(data)) }, [id]); const handleDeliveredBtn = id => { const newQuantity = parseInt(quantity) - 1; const updatedQuantity = { newQuantity }; const…
i was tryin to connect with mongodb. it shows me MongoServerError: bad auth : Authentication failed. code given below const express = require("express"); const cors = require("cors"); const { MongoClient } = require("mongodb"); require("dotenv").config(); const port = process.env.PORT || 4000;…
Client-side code...!!! I want to update the quantity by clicking the Delivered button... In this section have quantity that i'm show bring database. const [reload, setReload] = useState(true); const [stock, setStock] = useState({}); const { _id, quantity } = stock;…
Im develop a react website with node js backend than react show some error link enter image description here
How do i decrease stock in my react app by a delivery button which is connected in MongoDB