Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 662 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 1,148 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 287 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 230 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 265 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 826 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 226 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.

20

Mar

2026

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

Shubham Saini 246 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.

15

Aug

2021

Real Time Chat using SignalR with .Net core and Vue.js

Shubham Batra 6,405 views

Hello guys, We often found ourself in the need of a realtime chat app . For two way communication in your webapp. We will see how to implement real time chat using SignalR with .Net core and Vue.js. SignalR is basically used for any sort of realtime functionalities. We will use .Net core for managing chathub . You can see complete steps in the article.

16

Apr

2026

Advanced Gmail API Features: Building Custom Email Solutions with ASP.NET Core

Shubham Saini 200 views

In this post, readers will explore advanced features of the Gmail API and how to leverage them within ASP.NET Core applications to create customized email solutions. Understanding these features is crucial for developers looking to enhance email functionality in their applications, providing users with seamless communication capabilities. A solid grasp of ASP.NET Core and basic familiarity with RESTful APIs will be beneficial for following along.

23

Oct

2023

How to fix CWE-23 Path Traversal vulnerability (Snyk)

Shubham Batra 10,154 views Watch Video

Hello guys, in this article we will see how to fix CWE-23 Path Traversal vulnerability Unsanitized input from an HTTP parameter flows into global::System.IO.Directory.CreateDirectory, where it is used as a path. This may result in a Path Traversal vulnerability and allow an attacker to create arbitrary directories when we scan our code with snyk.

30

Mar

2026

Mastering JavaScript Objects and Prototypes: A Deep Dive

Shubham Saini 156 views

Readers will learn the intricate workings of JavaScript objects and their prototype-based inheritance. Understanding these concepts is crucial for effective JavaScript programming, as they form the backbone of object-oriented design in the language. A solid grasp of functions, closures, and the basics of JavaScript syntax is recommended before diving in.

24

Mar

2026

Implementing Custom Middleware in ASP.NET Core: A Comprehensive Guide

Shubham Saini 216 views

This blog post will provide an in-depth understanding of creating custom middleware in ASP.NET Core, explaining its importance in request processing and how it can enhance application functionality. Readers will learn about various use cases, coding examples, and best practices to implement middleware effectively. Familiarity with ASP.NET Core and C# is recommended before diving into this topic.

07

Sep

2024

Poly Bags Are an Economical Choice for Packaging

Anonymous 1,803 views

Poly bags are a cost-effective packaging solution known for their versatility and durability. Their lightweight design reduces shipping costs, while their customizable features and protection against damage make them suitable for various products. Affordable to produce and available in eco-friendly options, poly bags provide practical benefits for businesses looking to optimize packaging efficiency.

09

Mar

2026

Understanding Loops in C: for, while, and do-while

Shubham Saini 526 views

In this blog post, you will learn about the three main types of loops in C programming: for, while, and do-while. Each loop serves a unique purpose and is essential for controlling the flow of your programs efficiently.

31

Dec

2022

Java Program to Display Fibonacci Series

Shubham Saini 5,198 views

Java Program to Display Fibonacci Series

19

May

2026

Deep Dive into WooCommerce REST API Integration with ASP.NET Core

Shubham Saini 169 views

This post will guide you through the intricacies of integrating WooCommerce's REST API with an ASP.NET Core application, focusing on real-world applications and best practices. Understanding this integration is crucial for developers looking to enhance their eCommerce platforms with robust functionalities. Familiarity with ASP.NET Core and basic REST API concepts is recommended before diving into this tutorial.

01

Apr

2026

Mastering SQL Server Window Functions: ROW_NUMBER, RANK, and DENSE_RANK Explained

Shubham Saini 295 views

This comprehensive guide delves into SQL Server's window functions, specifically focusing on ROW_NUMBER, RANK, and DENSE_RANK. Understanding these functions is crucial for performing advanced analytics and reporting tasks efficiently. A basic knowledge of SQL and familiarity with database concepts will be beneficial as we explore this powerful feature.

16

Mar

2026

Understanding Java Collections Framework: List, Set, and Map

Shubham Saini 254 views

In this blog post, readers will explore the Java Collections Framework, focusing on the three primary interfaces: List, Set, and Map. By understanding these collections, developers can efficiently store, manipulate, and retrieve data in their Java applications.

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

Real Time Chat using SignalR with .Net core and Vue.js

Advanced Gmail API Features: Building Custom Email Solutions with ASP.NET Core

How to fix CWE-23 Path Traversal vulnerability (Snyk)

Mastering JavaScript Objects and Prototypes: A Deep Dive

Implementing Custom Middleware in ASP.NET Core: A Comprehensive Guide

Poly Bags Are an Economical Choice for Packaging

Understanding Loops in C: for, while, and do-while

Java Program to Display Fibonacci Series

Deep Dive into WooCommerce REST API Integration with ASP.NET Core

Mastering SQL Server Window Functions: ROW_NUMBER, RANK, and DENSE_RANK Explained

Understanding Java Collections Framework: List, Set, and Map

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