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Invert Image Color – macOS Shortcut with ImageMagick

A simple macOS Shortcut that inverts the colors of an image using ImageMagick.

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Prerequisites ImageMagick Homebrew:

brew install imagemagick

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The keepAliveTimeout in a NestJS application (or any Node.js application) is a crucial configuration setting that controls how long an idle connection is kept open before it is closed. Understanding keepAliveTimeout and its implications can help you configure your server for better performance and stability, especially when dealing with long-running requests or integrations with load balancers.

1. What is keepAliveTimeout?

• Definition: The keepAliveTimeout is a setting on the HTTP server that specifies how long to keep an idle connection open before closing it.
• Idle Connection: An idle connection is one where no data is being transferred between the client and the server after the initial request has been fulfilled.

2. How Does keepAliveTimeout Work?

• Persistent Connections: HTTP/1.1 introduced the concept of persistent connections (or keep-alive connections), where a single TCP connection can be reused for multiple HTTP requests/responses between a client and ser

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const images = [
  { id: 1, url: 'XYZ' },
  { id: 2, url: 'DJJD' },
  { id: 3, url: 'JJEEJ' },
  { id: 4, url: 'EOOI' },
];

const reviews = [
  { id: 1, productId: 1, customerId: 1, images: [1, 2] },

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Context in Golang

Introduction

In Golang, the Context package provides a way to propagate deadlines, cancelation signals, and other request-scoped values across API boundaries and between goroutines. It's a powerful tool for managing concurrency and ensuring that operations are completed within a certain context.

Why Use Context?

1. Propagating Deadlines and Cancellation Signals

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1. Handling 1 Million Requests per Minute with Golang - medium article
2. An in-Depth look at our Docker and ECS stack for Golang - medium article
3. 12-factor methodology to configure systems
4. World's Largest Real time High-Frequency, Low Latency Streaming System on Golang
5. Lock monitoring in postgres
6. Backend developement with go + postgres
7. DNS In Deatils
8. [Handling 1 Million Websocket Connections in Go](https://www.youtube.com/watch?v=YiCCD5DPry8&t=1s&ab_channel=

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source Internet Assigned Numbers Authority

Comprehensive List of HTTP Status Codes

Status Code	Description
100	Continue
101	Switching Protocols

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Create a file with name docker-compose.yml

version: "3.7"
services:
  zookeeper:
    restart: always
    image: docker.io/bitnami/zookeeper:3.8
    ports:
      - "2181:2181"
    volumes:

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Docker vs Virtual Machines (VMs)

Introduction

• Overview of Docker and Virtual Machines (VMs).
• Agenda: Definitions, how they function, and guidance on workload suitability.

Common Themes

• Both Docker and VMs address the concept of virtualization.

Virtualization

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Virtual Machines vs. Containers

Virtualization Level

Virtual Machines (VMs)

• Utilize hardware virtualization.
• Rely on a hypervisor to virtualize physical hardware resources (processors, RAM, storage, network cards).

Containers

• Use operating system-level virtualization.
• Built upon the host OS's kernel, allowing multiple containers to run on a single OS instance.

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Handlebars AST to Template String using hbs-ast-to-str

This Gist introduces the hbs-ast-to-str package, which provides a solution for converting Handlebars Abstract Syntax Trees (AST) into template strings.

Installation

You can install the package using npm or yarn: