Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

Fix Gemini API Error 429: Quota Exceeded on Free Tier (System.InvalidOperationException)

Shubham Saini 696 views

Getting System.InvalidOperationException with Gemini API Error 429 (Quota Exceeded) on the Free Tier? You're not alone! This blog explains why this happens, covers free tier rate limits, and shows you how to fix it fast with retry logic, best practices, and tips on using image models in Gemini free tier.

13

Jun

2026

How to Build a Text-to-SQL AI Chatbot with Semantic Kernel and OpenAI in .NET 8

Shubham Saini 1,216 views Watch Video

Step-by-step tutorial to build a natural language to SQL chatbot using Microsoft Semantic Kernel, OpenAI function calling, and SQL Server in a .NET 8 Razor Pages app — with source code, architecture, pros, cons, and performance tips.

13

Jun

2026

Test Blog or whatever title you wnat

Shubham Saini 8 views

Here you have to add the descripion

12

Jun

2026

How to Generate Claude API Key & Setup Billing | Anthropic Claude Tutorial

Shubham Saini 306 views Watch Video

In this tutorial, we walk you through how to generate your Claude API key from the Anthropic Console and set up billing for your account. Whether you're a developer or just getting started with AI, this step-by-step guide makes it easy to get up and running with Claude AI quickly and securely.

12

Jun

2026

How to Boost Your YouTube Channel Performance Easily & Automatically with Claude AI Chrome Extension

Shubham Saini 260 views Watch Video

Growing a YouTube channel takes more than just uploading great content — it also requires ongoing optimization of your video titles, descriptions, and metadata to stay discoverable. But manually reviewing every video on your channel is time-consuming and tedious. What if an AI could do that for you, automatically, right inside your browser? In this tutorial, we show you exactly how to use the Claude AI Chrome Extension to analyze your YouTube channel, identify low-performing videos, and autom

11

Jun

2026

Implementing Two-Factor Authentication (2FA) in ASP.NET Core Identity

Shubham Saini 290 views

This guide provides a comprehensive approach to implementing Two-Factor Authentication (2FA) using ASP.NET Core Identity, enhancing security for web applications. Understanding 2FA is crucial as it adds an additional layer of protection against unauthorized access, thereby mitigating risks associated with credential theft. Familiarity with ASP.NET Core Identity and basic authentication concepts is essential before proceeding with the implementation.

11

Jun

2026

Securing ASP.NET Core appsettings.json Using Environment Variables and Secret Management

Shubham Saini 849 views

This article explores how to secure sensitive information in ASP.NET Core applications by utilizing environment variables and the built-in secret management system. Understanding these concepts is crucial for preventing exposure of sensitive data in production environments. Readers should have a basic understanding of ASP.NET Core and its configuration system before diving in.

11

Jun

2026

Preventing Sensitive Data Exposure in ASP.NET Core API Responses with JsonIgnore

Shubham Saini 249 views

In this post, readers will learn how to effectively use the JsonIgnore attribute in ASP.NET Core to prevent sensitive data exposure in API responses. This is crucial for maintaining data privacy and security in modern web applications. A fundamental understanding of ASP.NET Core and JSON serialization is recommended for optimal comprehension.

24

Mar

2026

CWE-125: Out-of-Bounds Read - Detecting and Preventing Memory Read Vulnerabilities

Shubham Saini 475 views

This post delves into CWE-125, focusing on Out-of-Bounds Read vulnerabilities in memory management. Understanding these vulnerabilities is crucial for developers aiming to enhance application security and prevent potential exploits. Familiarity with C/C++ programming and basic memory management concepts will help readers grasp the intricacies discussed here.

22

Apr

2026

Understanding ModelState.IsValid in ASP.NET Core: Importance, Best Practices, and Real-World Applications

Shubham Saini 231 views

This blog post delves into the significance of checking ModelState.IsValid in ASP.NET Core applications, emphasizing its role in ensuring data integrity during model binding. Readers will learn why this validation step is crucial for preventing runtime errors and maintaining application security. A basic understanding of ASP.NET Core MVC and model binding will be beneficial for following along.

12

Nov

2022

Caching in ASP.NET Core using Redis Cache

Shubham Batra 8,546 views Watch Video

Caching in ASP.NET Core using Redis Cache

16

Mar

2026

Mastering Multithreading in Java: A Comprehensive Guide

Shubham Saini 180 views

In this blog post, we will explore the fundamentals of multithreading in Java, a powerful feature that allows concurrent execution of tasks. You'll learn how to create and manage threads, synchronize them, and avoid common pitfalls, enabling you to write efficient and responsive Java applications.

17

Mar

2026

Understanding Design Patterns in Java: A Comprehensive Guide

Shubham Saini 163 views

In this blog post, we will delve into the concept of design patterns in Java, exploring their significance in software development. Readers will learn about various types of design patterns, their implementations, and best practices for effective use in real-world applications.

01

Apr

2026

Understanding the CSS Box Model: Margin, Padding, and Border Explained

Shubham Saini 302 views

This article delves into the CSS Box Model, focusing on the essential components: margin, padding, and border. Understanding this model is critical for developing layouts that are both visually appealing and functionally robust. Prior knowledge of basic HTML and CSS syntax is beneficial for grasping the concepts discussed herein.

20

Jul

2023

LinkedHashMap in Java

Shubham Batra 3,713 views

Java includes a number of data structures for storing and manipulating collections of objects. The 'LinkedHashMap' class, which is an extension of the 'HashMap' class, is one of the important classes in the Java Collections Framework. LinkedHashMap, unlike HashMap, preserves the order of its items depending on the insertion order, making it helpful in cases where the order of components must be maintained based on their arrival time.

12

Dec

2020

Code syntax higlighter using Prism js

Shubham Batra 14,067 views

In this article we will see how to highlight code segments in in your website with js. We will be using Prism js syntax highlighter for this. Prism is a lightweight, extensible syntax highlighter, built with modern web standards in mind. It’s used in millions of websites, including some of those you visit daily.

26

May

2026

Automating Let's Encrypt SSL Renewal in ASP.NET Core Using Certbot

Shubham Saini 137 views

This guide delves into automating the renewal of Let's Encrypt SSL certificates within an ASP.NET Core application using Certbot. Understanding this process is crucial for maintaining secure communications on the web, as SSL certificates require periodic renewal to ensure ongoing protection. Readers should have a basic understanding of ASP.NET Core and server management.

09

Dec

2023

Database Backup .bak

Shubham Saini 3,314 views

Database Backup .bak

17

Mar

2026

Understanding Variables, Data Types, and Operators in Python

Shubham Saini 99 views

In this blog post, we will explore the foundational concepts of variables, data types, and operators in Python. Understanding these concepts is crucial for any aspiring Python programmer as they form the backbone of all coding tasks.

12

Apr

2026

Dapper vs Entity Framework in ASP.NET Core: Choosing the Right Data Access Strategy

Shubham Saini 818 views

This post provides an in-depth comparison between Dapper and Entity Framework in ASP.NET Core, exploring their strengths and weaknesses in data access strategies. Understanding these frameworks is crucial for developers aiming to optimize performance and maintainability in their applications. Familiarity with C#, ASP.NET Core, and basic database concepts is recommended for following along.

Free Programming Tutorials, Blogs & Developer Tools

Fix Gemini API Error 429: Quota Exceeded on Free Tier (System.InvalidOperationException)

How to Build a Text-to-SQL AI Chatbot with Semantic Kernel and OpenAI in .NET 8

Test Blog or whatever title you wnat

How to Generate Claude API Key & Setup Billing | Anthropic Claude Tutorial

How to Boost Your YouTube Channel Performance Easily & Automatically with Claude AI Chrome Extension

Implementing Two-Factor Authentication (2FA) in ASP.NET Core Identity

Securing ASP.NET Core appsettings.json Using Environment Variables and Secret Management

Preventing Sensitive Data Exposure in ASP.NET Core API Responses with JsonIgnore

CWE-125: Out-of-Bounds Read - Detecting and Preventing Memory Read Vulnerabilities

Understanding ModelState.IsValid in ASP.NET Core: Importance, Best Practices, and Real-World Applications

Caching in ASP.NET Core using Redis Cache

Mastering Multithreading in Java: A Comprehensive Guide

Understanding Design Patterns in Java: A Comprehensive Guide

Understanding the CSS Box Model: Margin, Padding, and Border Explained

LinkedHashMap in Java

Code syntax higlighter using Prism js

Automating Let's Encrypt SSL Renewal in ASP.NET Core Using Certbot

Database Backup .bak

Understanding Variables, Data Types, and Operators in Python

Dapper vs Entity Framework in ASP.NET Core: Choosing the Right Data Access Strategy

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