Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 948 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 1,433 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 476 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 414 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 445 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 996 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 394 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.

23

Aug

2023

How to Resolve error while installing JDK.

Shubham Batra 4,117 views

when we write Javac on cmd(Command prompt) it show error " 'javac' is not recognized as an internal or external command, operable program or batch file." Here are few steps to resolve this error.

26

Mar

2026

Mastering HTTP Client in Angular: A Comprehensive Guide to REST API Integration

Shubham Saini 685 views

This guide delves into the intricacies of using the HTTP Client in Angular to interact with REST APIs, highlighting its significance in modern web applications. Understanding this component is vital for building robust applications that communicate effectively with backend services. Prior knowledge of Angular fundamentals and TypeScript is recommended for a smoother learning experience.

09

May

2026

Redis Cache Integration in ASP.NET Core - Distributed Caching with StackExchange.Redis

Shubham Saini 314 views

This article explores the integration of Redis caching within ASP.NET Core applications using the StackExchange.Redis library. Understanding how to implement distributed caching can significantly enhance the performance and scalability of web applications. Before diving into implementation, familiarity with ASP.NET Core and basic caching concepts is recommended.

01

Apr

2026

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

Shubham Saini 362 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.

09

Apr

2026

Securing Dapper Queries in ASP.NET Core Against SQL Injection

Shubham Saini 718 views

This post delves into securing Dapper queries in ASP.NET Core applications against SQL Injection vulnerabilities, a critical concern for any application interacting with databases. Understanding the methods and best practices for preventing SQL Injection is essential for maintaining the integrity and security of your data. Prior knowledge of C#, ASP.NET Core, and Dapper is recommended to fully grasp the concepts discussed.

24

May

2026

Integrating Slack API in ASP.NET Core: Building Bots, Webhooks, and Notifications

Shubham Saini 219 views

This tutorial explores how to integrate the Slack API into an ASP.NET Core application, focusing on creating bots, using webhooks, and sending notifications. Understanding Slack's architecture and API capabilities is crucial for developers aiming to enhance team communications through automation. Familiarity with ASP.NET Core and basic web API concepts will be beneficial for following along.

30

Oct

2022

How to implement Paypal in Asp.Net Core

Shubham Batra 20,172 views Watch Video

Hello guys, we often want to integrate payment gateways in our Asp.Net applications. Some of the most popular payment gateways are payumoney,paypal,stripe and razorpay. We have already covered payumoney and stripe in our blogs. In this article we will see how to implement paypal in Asp.Net Core.

23

May

2026

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

Shubham Saini 164 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.

09

Dec

2023

Mastering Arrays in C: Types and Examples Explained

Shubham Saini 3,476 views

In C, an array is a collection of elements of the same data type, stored in contiguous memory locations. An index is used to access the elements of an array.

22

May

2026

Integrating HashiCorp Vault for Effective Secrets Management in ASP.NET Core Applications

Shubham Saini 208 views

This article delves into the integration of HashiCorp Vault within ASP.NET Core applications for efficient secrets management. Understanding this integration is essential for developers looking to enhance security by managing sensitive data such as API keys and database credentials. Readers should be familiar with basic ASP.NET Core concepts and RESTful services.

01

Apr

2026

Deep Dive into SQL Server Views: Concepts, Use Cases, and Best Practices

Shubham Saini 449 views

This article explores the concept of views in SQL Server, detailing their purpose, benefits, and real-world applications. Understanding views is essential for database professionals who aim to optimize data access and security. Prior knowledge of basic SQL syntax and database concepts is recommended.

14

Mar

2026

Mastering Sorting Algorithms in C: Bubble, Selection, and Insertion Sort

Shubham Saini 309 views

In this blog post, we will explore three fundamental sorting algorithms—Bubble Sort, Selection Sort, and Insertion Sort—in the C programming language. Understanding these algorithms is essential for any programmer as they form the basis for more complex sorting methods and help in grasping algorithmic efficiency.

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

How to Resolve error while installing JDK.

Mastering HTTP Client in Angular: A Comprehensive Guide to REST API Integration

Redis Cache Integration in ASP.NET Core - Distributed Caching with StackExchange.Redis

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

Securing Dapper Queries in ASP.NET Core Against SQL Injection

Integrating Slack API in ASP.NET Core: Building Bots, Webhooks, and Notifications

How to implement Paypal in Asp.Net Core

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

Mastering Arrays in C: Types and Examples Explained

Integrating HashiCorp Vault for Effective Secrets Management in ASP.NET Core Applications

Deep Dive into SQL Server Views: Concepts, Use Cases, and Best Practices

Mastering Sorting Algorithms in C: Bubble, Selection, and Insertion Sort

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