Mohammad Jawad (Kasir) Barati articles - 35 total
Write e2e tests for NestJS with testcontainers
So I was really annoyed last time I was trying to mock and have some tests for my NestJS app. So I...
GraphQL + NestJS + Interfaces + Unions
So guys I was really confused by the NestJS's doc as to ho you can have an API which can be invoked...
NestJS + AWS S3 + Multipart file upload + gRPC + e2e testing
So I was wondering how I can upload a file to AWS S3 over gRPC with a NodeJS/NestJS backend app. And...
Get a list of endpoints in your NestJS app
So here is how I get a list of all defined HTTP endpoints in my E2E test in a NestJS app with their...
AWS S3 - Multipart file upload - Surprise Bills
It is super easy to loss sight of AWS's hidden costs or at least somewhat hard to find unless you're...
NestJS + gRPC + step by step guide + e2e tests
What is RPC and how you can use it in NestJS is the question I had in mind to answer in this post....
When E2E Tests In NestJS Gives Me a Headache
Testing can be frustrating, especially when we do not have a well documented library/framework from...
Graphile -- Farewell Business Layer
So I am super duper excited about Graphile, I just finished listening to an insightful podcast from...
How to Read or Understand an Open-Source Projects
It's always supper fun to dig into coding and try to make sense of open-source libs. it's been a...
Zero, One, Infinity Principle in Software Development
While reading Apollo's doc for Relay Connection pagination I encountered a new terminology, or let's...
GraphQL query complexity + NestJS + Dataloader
I was doing some exploration around GraphQL query complexity, depth limitation, and how to...
GraphQL + NestJS -- Part 1
So I have this job op with GraphQL requirements, thus I decided to prepare myself for the...
Nx + TypeORM + NestJS + Migrations
Hi, I have been out in the wild looking for a good way to generate migrations with TypeORM in a...
Recursive Conditional Types
Assume you have a for in loop and suddenly realize that your variable type is string and not a string...
Module declaration in TS
Here we learn how to write a high-quality Typescript declaration file. So you're coding in ReactJS...
Type guards, type predicates, assertion signatures, and branded types in TS
I love TS for a reason, and that is how easy and predictable it makes your code. Let's talk about...
Implement reCAPTCHA in htmx + expressjs
Let's start with the most obvious question, why we need it? because reCAPTCHA is using advance risk...
How to configure TSC + Webpack + ESM for NodeJS
Just had a revelation in how different tools work together thanks to hours of trying to build my Nx...
Pagination in raw SQL with OFFSET
Update Stop using offset for pagination - Why it's grossly inefficient by u/fyzic in...
Declaration Merging in TS
I love Typescript and how much it can improve your code quality, though it can sometimes give you a...
Convert a ReactJS app from Vite to Nx
I had this repo called react and I used vite CLI to create my ReactJS app. But then I needed to add a...
Discriminated unions in ReactJS
Hey folks, I am pretty excited to share this with you all. It is about how you can have better...
htmx and ExpressJS
Why I am looking at htmx The reason behind me, embarking on another educational journey is...
HTML/CSS tutoring sessions
Hey folks, Long time no post 😅, so here I am. Announcing the end of my journey as a tutor of...
Test Stripe with MockServer
Hey folks, Have not been able to write integration test for your integrated Stripe in your NodeJS...
PATCH vs PUT & idempotency in NestJS
Hi, Here we are going to show you a quick rundown on how to have a conforming RESTful API. You can...
NestJS + class-validator
Hey folks, In 14.03.2022 I asked a question1 in class-validator repo about throwing an error when a...
4 most used AWS EC2 instance types
Here is a very short but nonetheless handy version of 4 most used Amazon Web Services (AWS) EC2...
S3 storage classes
Hey follks, what's up? I just had a really fun time making this cheatsheet like visualization for S3...
Schema + Data migration in Prisma (adding a new mandatory field)
Here I was adding a new field to the users table. And since I had already my database deployed I...