React Admin panel

Milad Ranjbar — Wed, 21 Jul 2021 06:39:30 +0000

I created an Admin panel using React with multiple theme.
by following this video: https://www.youtube.com/watch?v=q8cabjyUTVY

But I used Zustand instead of redux for state management. and I think its so cool especially for small projects. it has much less boiler code compare to Redux.

here is the demo
here is the source code: https://github.com/miladr0/simple-admin-panel

Import large JSON file into MongoDB using mongoimport

Milad Ranjbar — Thu, 13 Aug 2020 17:17:06 +0000

I was trying to import large data set JSON file into MongoDB my first method was using MongoDB Compass my file size was about 7GB but after 30 minutes passed still stuck on 0%, like the image below:

So I used next method, mongoimport but I am using MongoDB with docker so in the first step I need to copy my huge JSON file to MongoDB container:

docker cp users.json CONTAINER_NAME:/users.json

then connect to my Mongodb container with below command:

docker exec -it CONTAINER_NAME  bash

and now just need to insert huge file using mongoimport:

mongoimport --db MY_DB --collection users --drop --jsonArray --batchSize 1 --file ./users.json

by using --batchSize 1 option you will be insured huge JSON file will be parsed and stored in batch size to prevent memory issue.

if during import you encounter killed error from MongoDB import, maybe you need to increase memory size for your container by adding deploy.resources to your docker-compose file:

version: "3"
services:
  mongodb:
    image: mongo:3.6.15  
    deploy:
      resources:
        limits:
          memory: 4000M
        reservations:
          memory: 4000M

DEV Community: Milad Ranjbar

React Admin panel

Import large JSON file into MongoDB using mongoimport