I am using mongodb and I am having challenges saving. My Schema is const transaction = new Schema({ sender: { type: ObjectId, default: null, transaction_type: { type: String, enum: transaction_types, default: null } }, recipient: { type: ObjectId, default: null,…
I am still new to Node JS. I am trying to make a book directory using Node JS and Mongo DB. Every time I press the delete button to delete a book it shows me this error CastError: Cast to…
Learning about the concept of microservices in Nodejs, I have set up two microservices auth and users, both standalone and running on different ports. The auth service handles user creation and log-in users using a username and password. This works…
I am a building a web-app where people have 10 coins by default, and when they click a buy button, it reduces the number of coins by 10 with each click. The schema for users is like this: const mongoose…
for storage space issues i cannot save images in server so i had to store it in cloudinary and for seo purposes I had to serve it from my domain not cloudinary's so i thought to get img files from…
I want to retrieve a user's chats with corresponding users from a different collection in NodeJS and MongoDB. The nature of NodeJS gives me a bad feeling that running the following code will block or decrease performance of my app.…
The issue is basically that socketio is hanging at 250 concurrent. Whether via node app.js –nouse-idle-notification –max-old-space-size=8192 ulimit -n 2048 --expose-gc oder pm2, it has the same effect. I'm running centOS7. I have 30GB of ram and it's a proper…
I have the following schema: User: { ...otherFields, isDumb: false, type: "A" // could be "A", "B", or "C" } I want to fetch all dumb users by default and fetch by type only if the type is passed through…
I am really new to AWS EC2. I hosted my Express.js on AWS EC2 using PM2. Here is the current log of EC2 of my app. I don't know whether this is working or not. My public IPv4 address is…
I'm following a tutorial from youtube creating a simple dockerized CRUD application in Express, Node.js, Mongo & Redis. I stucked at video 3:06:57 on Authentication with sessions & Redis. The initial issue I faced below when I send a POST…