Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 58 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 128 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 100 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 94 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 85 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 108 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 80 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.

21

Aug

2023

java.lang.IllegalStateException: The driver executable does not exist

Shubham Batra 5,240 views Watch Video

The java.lang.IllegalStateException with the message "The driver executable does not exist" typically occurs in the context of automated testing using web automation frameworks such as Selenium WebDriver.

28

Mar

2026

Mastering Pandas for Data Analysis in Python: A Comprehensive Guide

Shubham Saini 108 views

This tutorial delves into the powerful Python library Pandas, focusing on its capabilities for data analysis. Understanding Pandas is crucial for manipulating and analyzing structured data efficiently. Prior familiarity with Python and basic data structures will be beneficial for maximizing your learning experience.

18

Apr

2026

Building a File Upload Feature Using Google Drive in ASP.NET Core

Shubham Saini 135 views

This article will guide you through creating a robust file upload feature using Google Drive in an ASP.NET Core application. Understanding this integration is crucial for developers looking to enhance their applications with scalable and secure file storage solutions. Familiarity with ASP.NET Core, RESTful APIs, and Google Cloud services will be beneficial as we dive into the implementation details.

26

Jun

2023

String Buffer in Java

Shubham Batra 3,513 views

The String Buffer class in Java provides a modifiable sequence of characters. It is commonly used when you need to dynamically edit strings without continuously generating new objects.

16

Mar

2026

Understanding Collections in C#: List, Dictionary, Queue, and Stack

Shubham Saini 162 views

In C#, collections are essential data structures that allow developers to manage groups of objects efficiently. This blog post will cover four primary types of collections: List, Dictionary, Queue, and Stack, including their usages and practical examples.

03

May

2026

Integrating OpenAI GPT-4 API in ASP.NET Core: Chat, Completions, and Streaming

Shubham Saini 158 views

In this tutorial, readers will learn how to effectively integrate the OpenAI GPT-4 API into an ASP.NET Core application, covering chat functionality, text completions, and streaming responses. This integration is essential for creating intelligent applications that can understand and generate human-like text, enhancing user interaction and automating content generation. Familiarity with ASP.NET Core and basic concepts of APIs will be beneficial for following along.

30

Apr

2026

Implementing GitHub OAuth Integration in ASP.NET Core for Seamless User Login

Shubham Saini 134 views

In this comprehensive guide, you will learn how to implement GitHub OAuth authentication in an ASP.NET Core application. This integration allows users to log in using their GitHub accounts, streamlining the authentication process and enhancing user experience. A solid understanding of ASP.NET Core, along with familiarity with OAuth concepts, will be beneficial as we dive into the implementation details.

13

Jan

2023

Multiple rows to one comma separated value in Sql Server

Shubham Batra 6,195 views

Multiple rows to one comma separated value in Sql Server

26

Apr

2026

Integrating Brevo (Sendinblue) for Email and SMS in ASP.NET Core Applications

Shubham Saini 231 views

This tutorial covers the comprehensive integration of Brevo (formerly Sendinblue) for both email and SMS functionalities in ASP.NET Core applications. Understanding this integration is crucial for developers aiming to enhance their applications with effective communication tools that can address user engagement and marketing needs. Prior familiarity with ASP.NET Core and basic RESTful API concepts is recommended for a smooth learning experience.

21

Oct

2021

Card Number Formatting using jquery

Shubham Batra 11,764 views Watch Video

Hello guys, often while dealing with project where we need to implement payment systems and need user to enter card number and show them the card number format properly. So for that purpose we have to use controls from payment gateways which are bit harder to manage on custom websites. So we will see how to implement Input Box Card Number Formatting using jquery.

09

Mar

2026

Mastering Control Structures in C: The if-else and switch Statements

Shubham Saini 193 views

In this blog post, you'll learn about control structures in C, specifically focusing on the if-else and switch statements. These structures are essential for making decisions in your code, allowing for more dynamic and interactive programs.

28

Aug

2023

Implicit wait V/s Explicit wait In Java

Shubham Batra 3,565 views

In Selenium WebDriver, both implicit wait and explicit wait are mechanisms to control the timing of interactions with web elements, especially when elements might not be immediately available due to various reasons such as dynamic content loading, AJAX requests, etc. Both techniques help in synchronizing your tests with the actual behavior of the web application.

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

java.lang.IllegalStateException: The driver executable does not exist

Mastering Pandas for Data Analysis in Python: A Comprehensive Guide

Building a File Upload Feature Using Google Drive in ASP.NET Core

String Buffer in Java

Understanding Collections in C#: List, Dictionary, Queue, and Stack

Integrating OpenAI GPT-4 API in ASP.NET Core: Chat, Completions, and Streaming

Implementing GitHub OAuth Integration in ASP.NET Core for Seamless User Login

Multiple rows to one comma separated value in Sql Server

Integrating Brevo (Sendinblue) for Email and SMS in ASP.NET Core Applications

Card Number Formatting using jquery

Mastering Control Structures in C: The if-else and switch Statements

Implicit wait V/s Explicit wait In Java

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