Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 882 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 1,383 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 427 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 376 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 401 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 955 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 359 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.

24

Mar

2026

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

Shubham Saini 234 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.

20

Sep

2023

Mastering the Switch Statement in C: A Complete Guide with Examples

Shubham Batra 3,265 views

A do-while loop is a sort of loop construct in C that repeatedly runs a block of code as long as a stated condition is true. The do-while loop, as opposed to the while loop, ensures that the code block is performed at least once, even if the condition is initially false. The basic syntax of a do-while loop in C is as follows:

28

Apr

2026

Integrating Vonage Nexmo SMS API in ASP.NET Core Applications

Shubham Saini 273 views

This blog post delves into the integration of the Vonage Nexmo SMS API within ASP.NET Core applications, providing a comprehensive guide to sending SMS messages programmatically. Understanding this integration is crucial for developers looking to enhance user engagement through SMS notifications or alerts. To follow along, familiarity with ASP.NET Core and basic API concepts is recommended.

09

Dec

2023

Understanding Call By Reference in C#: A Complete Guide

Shubham Saini 3,470 views

To pass a reference of arguments to the function the ref keyword is used in C#.

28

May

2026

Integrating Currency and Exchange Rate API in ASP.NET Core for Real-Time Forex Data

Shubham Saini 285 views

This tutorial covers the integration of a Currency and Exchange Rate API in ASP.NET Core, enabling real-time forex data retrieval. Understanding how to implement this functionality is crucial for applications requiring currency conversion and financial data analysis. Prior knowledge of ASP.NET Core and RESTful API concepts will be beneficial.

08

May

2026

Elasticsearch Integration in ASP.NET Core - Full-Text Search with NEST Client

Shubham Saini 250 views

This blog post provides a comprehensive guide on integrating Elasticsearch with ASP.NET Core using the NEST client, focusing on full-text search capabilities. Understanding this integration is vital for building scalable applications that require advanced search functionalities. Readers should have a basic knowledge of ASP.NET Core and familiarity with RESTful services.

02

Apr

2026

Bootstrap CSS Framework - Getting Started with Responsive Web Design

Shubham Saini 276 views

Readers will learn how to effectively use the Bootstrap CSS framework to create responsive web applications. Understanding Bootstrap is essential for modern web development as it simplifies the design process and ensures cross-device compatibility. Familiarity with basic HTML and CSS is required to maximize the benefits of this tutorial.

10

Sep

2022

DevExpress Dropdown Items Overlapped by Popup

Shubham Batra 5,390 views

Hello guys, sometimes while working with Devexpress tools you may have found one issue with dropdown when you use that on a popup. The items of dropdown gets overlapped by popup. We will see how to fix DevExpress Dropdown Items Overlapped by Popup.

20

Sep

2021

Import data from Excel in Asp.Net

Shubham Batra 13,190 views Watch Video

Hello guys, sometimes we need to import data from excel file in asp.net . So we will use ExcelDataReader for that. You can check the steps on using that with asp.net project.

06

Nov

2023

How to Convert Text to Speech in Asp.Net

Shubham Saini 6,588 views Watch Video

In this article, we will explore how to implement text-to-speech functionality in an ASP.NET MVC application using the built-in System.Speech.Synthesis namespace in .NET. This method allows you to convert text to speech without relying on external services.

03

May

2026

Integrating Backblaze B2 Cloud Storage with ASP.NET Core Applications

Shubham Saini 337 views

In this post, you will learn how to integrate Backblaze B2 Cloud Storage into your ASP.NET Core applications for efficient file storage and retrieval. This integration is crucial for applications requiring scalable storage solutions while maintaining cost-effectiveness. Prior knowledge of ASP.NET Core and basic cloud storage concepts will be beneficial.

13

Jan

2023

How to find all tables by column name

Shubham Batra 7,171 views Watch Video

Hello guys, sometimes while working with big databases in sql server we often need to find all tables where we have used specific columns. So we will see how to do that.

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

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

Mastering the Switch Statement in C: A Complete Guide with Examples

Integrating Vonage Nexmo SMS API in ASP.NET Core Applications

Understanding Call By Reference in C#: A Complete Guide

Integrating Currency and Exchange Rate API in ASP.NET Core for Real-Time Forex Data

Elasticsearch Integration in ASP.NET Core - Full-Text Search with NEST Client

Bootstrap CSS Framework - Getting Started with Responsive Web Design

DevExpress Dropdown Items Overlapped by Popup

Import data from Excel in Asp.Net

How to Convert Text to Speech in Asp.Net

Integrating Backblaze B2 Cloud Storage with ASP.NET Core Applications

How to find all tables by column name

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