Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 1,068 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 1,519 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 560 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 488 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 506 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 1,082 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 453 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.

03

Apr

2026

Mastering React Performance Optimization: A Deep Dive into useMemo, useCallback, and memo

Shubham Saini 324 views

In this detailed guide, you will learn how to effectively optimize React applications using useMemo, useCallback, and memo. Understanding these concepts is crucial for building efficient, high-performance user interfaces, especially in complex applications. A foundational knowledge of React hooks and component re-rendering behavior will be beneficial before diving into this topic.

23

Mar

2026

CWE-306: Missing Authentication for Critical Functions - Securing Sensitive Endpoints

Shubham Saini 622 views

This article delves into CWE-306, focusing on the essential practice of securing critical functions through authentication. Understanding this vulnerability is crucial for developers to protect sensitive actions within applications. Readers should have a foundational knowledge of web application security and authentication mechanisms.

10

May

2026

Integrating Azure Service Bus with ASP.NET Core: Deep Dive into Queues, Topics, and Subscriptions

Shubham Saini 274 views

In this comprehensive guide, you will learn how to effectively integrate Azure Service Bus into your ASP.NET Core applications, focusing on queues, topics, and subscriptions. Understanding these components is crucial for building scalable and decoupled systems that can handle asynchronous communication efficiently. Prior knowledge of ASP.NET Core and Azure basics will be beneficial as we delve into detailed implementations and best practices.

24

Mar

2026

CWE-787: Out-of-Bounds Write - Understanding Memory Corruption Vulnerabilities

Shubham Saini 528 views

This comprehensive guide delves into the nuances of CWE-787, focusing on Out-of-Bounds Write vulnerabilities that lead to memory corruption. Understanding these vulnerabilities is crucial for developers to secure their applications against potential exploits. Prior knowledge of memory management and C/C++ programming will enhance comprehension of this topic.

30

Mar

2026

Mastering Environment Variables and dotenv in Node.js for Secure Configuration

Shubham Saini 350 views

This comprehensive guide will help you understand the role of <strong>environment variables</strong> in Node.js applications and how to effectively use the <strong>dotenv</strong> package for managing configurations. By the end, you'll be equipped to secure your applications and streamline configuration management. Familiarity with Node.js and basic programming concepts will be beneficial.

09

Dec

2023

Check if the character is a vowel or a consonant.

Shubham Saini 4,000 views

To check if a character is a vowel or a consonant in C, you can write a simple program that evaluates whether the character is one of the vowels (a, e, i, o, u) or not. Here's a basic example of how to do this:

30

May

2026

CWE-502: Preventing Insecure Deserialization in ASP.NET Core Web API

Shubham Saini 332 views

In this article, you will learn about the vulnerabilities associated with insecure deserialization in ASP.NET Core Web APIs and how to mitigate them. Understanding these vulnerabilities is crucial as they can lead to severe security breaches, including remote code execution. Before diving in, you should be familiar with basic ASP.NET Core concepts and the principles of serialization and deserialization.

15

May

2023

Get Mime Type for any extension in Asp.Net

Shubham Batra 9,146 views Watch Video

Hello guys, sometimes we need to get mime type for specific file types. So we will see how we can get mime type for any file extension in Asp.Net.

23

May

2026

Leveraging Terraform for ASP.NET Core Applications on Azure: A Comprehensive Guide to Infrastructure as Code

Shubham Saini 195 views

This article provides an in-depth exploration of using Terraform to manage Azure resources for ASP.NET Core applications, detailing the principles of Infrastructure as Code (IaC) and its real-world applications. Understanding Terraform's capabilities can streamline deployment processes, enhance scalability, and improve collaboration among development teams. Readers should be familiar with ASP.NET Core basics and have an Azure account to follow along effectively.

20

Mar

2026

Understanding CWE-643: XPath Injection - Attacking and Securing XML Query Interfaces

Shubham Saini 316 views

This article delves into the intricacies of XPath Injection, a critical security vulnerability in XML query interfaces. Readers will learn about its mechanisms, implications, and how to effectively mitigate such risks. A firm grasp of XML, XPath, and basic web application security principles will be beneficial.

26

Mar

2026

Understanding Lists, Tuples, and Sets in Python: A Comprehensive Guide

Shubham Saini 219 views

This in-depth guide explores the fundamental data structures in Python: lists, tuples, and sets. Understanding these structures is crucial for efficient data manipulation and algorithm implementation in Python. A basic familiarity with Python syntax and data types is recommended before diving into this article.

25

Mar

2026

Mastering Angular Services and Dependency Injection for Scalable Applications

Shubham Saini 269 views

This comprehensive guide delves into Angular Services and Dependency Injection, two pivotal concepts for building scalable applications. Understanding these concepts is essential for efficient code organization and enhancing testability in Angular projects. Familiarity with TypeScript and basic Angular architecture is recommended for optimal comprehension.

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

Mastering React Performance Optimization: A Deep Dive into useMemo, useCallback, and memo

CWE-306: Missing Authentication for Critical Functions - Securing Sensitive Endpoints

Integrating Azure Service Bus with ASP.NET Core: Deep Dive into Queues, Topics, and Subscriptions

CWE-787: Out-of-Bounds Write - Understanding Memory Corruption Vulnerabilities

Mastering Environment Variables and dotenv in Node.js for Secure Configuration

Check if the character is a vowel or a consonant.

CWE-502: Preventing Insecure Deserialization in ASP.NET Core Web API

Get Mime Type for any extension in Asp.Net

Leveraging Terraform for ASP.NET Core Applications on Azure: A Comprehensive Guide to Infrastructure as Code

Understanding CWE-643: XPath Injection - Attacking and Securing XML Query Interfaces

Understanding Lists, Tuples, and Sets in Python: A Comprehensive Guide

Mastering Angular Services and Dependency Injection for Scalable Applications

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