Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 740 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 1,290 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 349 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 299 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 333 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 882 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 282 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.

14

Mar

2026

Understanding Stacks and Queues in C: A Beginner's Guide

Shubham Saini 382 views

In this blog post, you'll learn about two fundamental data structures in computer science: stacks and queues. We'll explore their definitions, implementations in C, and practical applications to enhance your programming skills.

01

Jun

2026

CWE-94: Preventing Code Injection in ASP.NET Core Dynamic Expression Evaluation

Shubham Saini 261 views

In this blog post, you will learn how to prevent code injection vulnerabilities in dynamic expression evaluation using ASP.NET Core. Understanding and mitigating these vulnerabilities is crucial for building secure applications that handle user input. A solid grasp of expression trees, dynamic LINQ, and validation techniques will be beneficial before diving in.

24

Mar

2026

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

Shubham Saini 482 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.

14

Aug

2022

Numeric only validation in javascript

Shubham Batra 5,263 views

Hello guys, sometimes we often want to restrict user from typing aplhabet characters and just all them to type numeric characters only. So we will see how to apply numeric only validation in javascript.

21

May

2026

Implementing a GitHub Actions CI/CD Pipeline for ASP.NET Core Applications

Shubham Saini 142 views

In this tutorial, readers will learn how to set up a comprehensive CI/CD pipeline for ASP.NET Core applications using GitHub Actions. Understanding this process is crucial for automating the build, test, and deployment phases of your application, ensuring consistent quality and rapid delivery. Before starting, familiarity with GitHub, ASP.NET Core, and basic CI/CD concepts is recommended.

13

Oct

2022

Owin Authentication in Asp.net MVC Api

Shubham Batra 8,811 views Watch Video

Hello guys now a days while working with api's we have to secure api's using owin autentication. in this article we will learn how to implement owin authentication in Asp.Net MVC Api.

17

Apr

2026

Deep Dive into Semantic HTML for Accessibility in ASP.NET Core

Shubham Saini 191 views

This article explores the fundamental principles of <strong>semantic HTML</> and its critical role in enhancing <strong>accessibility</strong> within ASP.NET Core applications. Understanding semantic HTML not only improves the usability of web applications for users with disabilities but also boosts SEO and maintainability. Readers should have a basic understanding of HTML and ASP.NET Core to fully benefit from this content.

22

Apr

2026

Handling JWT Token Expiration Without Refresh Logic in ASP.NET Core

Shubham Saini 220 views

In this blog post, readers will explore the intricacies of handling JWT token expiration in ASP.NET Core applications without relying on refresh tokens. Understanding this concept is crucial for building secure and efficient web applications. Prior knowledge of ASP.NET Core, JWT, and RESTful services is recommended.

26

May

2026

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

Shubham Saini 145 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.

02

Jun

2026

CWE-522: Implementing Secure Password Hashing in ASP.NET Core Identity with PBKDF2 and BCrypt

Shubham Saini 235 views

This article provides an exhaustive guide on implementing secure password hashing in ASP.NET Core Identity using PBKDF2 and BCrypt. Understanding these hashing algorithms is crucial for protecting user credentials and ensuring application security. Readers should have a basic knowledge of ASP.NET Core and identity management concepts.

21

Mar

2026

Understanding CWE-639: Insecure Direct Object Reference (IDOR) and Its Impact on Application Security

Shubham Saini 1,132 views

This article delves into CWE-639, focusing on Insecure Direct Object References (IDOR) and the associated authorization bypass vulnerabilities. Understanding IDOR is crucial for developers and security professionals alike, as it directly impacts the integrity and confidentiality of sensitive data within applications. A solid grasp of IDOR will empower you to implement robust security measures and prevent common pitfalls in application design.

15

May

2026

Integrating Seq Log Server with ASP.NET Core for Centralized Structured Logging

Shubham Saini 219 views

In this tutorial, you'll learn how to integrate Seq Log Server with ASP.NET Core applications for centralized structured logging. This approach streamlines log management and improves the ability to analyze application behavior, which is crucial for debugging and monitoring in production environments. Prior knowledge of ASP.NET Core and basic logging concepts will be beneficial.

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

Understanding Stacks and Queues in C: A Beginner's Guide

CWE-94: Preventing Code Injection in ASP.NET Core Dynamic Expression Evaluation

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

Numeric only validation in javascript

Implementing a GitHub Actions CI/CD Pipeline for ASP.NET Core Applications

Owin Authentication in Asp.net MVC Api

Deep Dive into Semantic HTML for Accessibility in ASP.NET Core

Handling JWT Token Expiration Without Refresh Logic in ASP.NET Core

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

CWE-522: Implementing Secure Password Hashing in ASP.NET Core Identity with PBKDF2 and BCrypt

Understanding CWE-639: Insecure Direct Object Reference (IDOR) and Its Impact on Application Security

Integrating Seq Log Server with ASP.NET Core for Centralized Structured Logging

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