Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 955 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 1,436 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 480 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 416 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 446 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 1,000 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 395 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.

31

Mar

2026

Understanding JavaScript Modules: A Deep Dive into Import and Export

Shubham Saini 337 views

This comprehensive guide will explore JavaScript modules, focusing on the import and export functionalities that allow for modular programming. By mastering these concepts, developers can enhance code maintainability and reusability. A basic understanding of JavaScript ES6 syntax and concepts is recommended to fully grasp the topics discussed.

05

Apr

2026

Troubleshooting NHibernate Errors in ASP.NET Core Applications

Shubham Saini 305 views

This comprehensive guide delves into troubleshooting NHibernate errors within ASP.NET Core applications, providing readers with the knowledge to identify, analyze, and resolve common issues. Understanding NHibernate's behavior and error messages is crucial for maintaining robust data access layers in enterprise applications. Prior familiarity with ASP.NET Core and basic ORM concepts will enhance the learning experience.

14

Aug

2022

Decimal validation in JavaScript

Shubham Batra 6,370 views

Hello guys, sometimes we need to allow users to type only decimals in the textboxes. For that purpose , we will see how to apply decimal validation in javascript

07

Dec

2023

DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled

Shubham Batra 4,401 views

1418 (HY000) at line 10185: This function has none of DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled (you might want to use the less safe log_bin_trust_function_creators variable)

29

Mar

2026

Mastering the Fetch API in JavaScript: A Comprehensive Guide to Making HTTP Requests

Shubham Saini 232 views

This tutorial will provide an in-depth understanding of the Fetch API in JavaScript, including how to make HTTP requests and handle responses effectively. Understanding the Fetch API is crucial for modern web development, as it facilitates seamless communication with servers. Prior familiarity with JavaScript basics and asynchronous programming concepts will be beneficial.

16

Mar

2026

Mastering Unit Testing with xUnit in .NET: A Comprehensive Guide

Shubham Saini 366 views

In this blog post, you will learn the essentials of unit testing in .NET using the xUnit framework. We'll cover how to set up xUnit, create tests, and implement best practices to ensure your code is reliable and maintainable.

18

Mar

2026

Integrating Google Ads SDK in Android Apps: A Step-by-Step Guide

Shubham Saini 392 views

In this blog post, we will explore how to integrate the Google Ads SDK into your Android applications using Java. You'll learn the prerequisites, essential concepts, and best practices to effectively monetize your app through Google Ads.

16

Mar

2026

Understanding Abstract Classes in C#: A Comprehensive Guide

Shubham Saini 338 views

In this blog post, we will explore the concept of abstract classes in C#, how they are defined, and why they are essential in object-oriented programming. You'll learn how to implement abstract classes with practical code examples, and discover best practices to avoid common pitfalls.

19

May

2023

C# Regex Examples

Shubham Batra 4,512 views

The Regex class in C# is part of the System.Text.RegularExpressions namespace. It provides a way to work with regular expressions, allowing you to perform pattern matching and manipulation of text. Here are some common operations you can perform using the Regex class:

10

Apr

2026

Best Practices for Using SQL with Python: Performance Tips and Techniques

Shubham Saini 383 views

This article delves into the best practices for optimizing SQL usage in Python 3.11, focusing on performance improvements and efficiency. Understanding these techniques is crucial for developing scalable applications that interact with databases. Readers should have a basic knowledge of SQL and Python programming to fully grasp the concepts presented here.

20

Mar

2026

CWE-352: Cross-Site Request Forgery (CSRF) - Understanding and Prevention Techniques

Shubham Saini 262 views

This guide provides a comprehensive understanding of Cross-Site Request Forgery (CSRF) vulnerabilities, their implications, and effective prevention strategies. Understanding CSRF is crucial for building secure web applications and safeguarding user data. Before diving in, a basic knowledge of web security principles and HTTP request handling is recommended.

18

Mar

2026

Understanding CWE-276: Incorrect Default Permissions - A Guide to Securing File and Resource Permissions

Shubham Saini 405 views

In this article, we will explore CWE-276, focusing on the implications of incorrect default permissions on files and resources. You will learn how to identify, mitigate, and prevent these vulnerabilities to enhance your application’s security posture.

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 JavaScript Modules: A Deep Dive into Import and Export

Troubleshooting NHibernate Errors in ASP.NET Core Applications

Decimal validation in JavaScript

DETERMINISTIC, NO SQL, or READS SQL DATA in its declaration and binary logging is enabled

Mastering the Fetch API in JavaScript: A Comprehensive Guide to Making HTTP Requests

Mastering Unit Testing with xUnit in .NET: A Comprehensive Guide

Integrating Google Ads SDK in Android Apps: A Step-by-Step Guide

Understanding Abstract Classes in C#: A Comprehensive Guide

C# Regex Examples

Best Practices for Using SQL with Python: Performance Tips and Techniques

CWE-352: Cross-Site Request Forgery (CSRF) - Understanding and Prevention Techniques

Understanding CWE-276: Incorrect Default Permissions - A Guide to Securing File and Resource Permissions

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