Code2night - Latest Programming Blogs & Tutorials

21

Jun

2026

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

Shubham Saini 903 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 1,392 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 431 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 378 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 407 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 960 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 362 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

Apr

2026

AWS S3 File Upload Integration in ASP.NET Core - Upload, Download and Presigned URLs

Shubham Saini 196 views

This comprehensive guide will teach you how to integrate AWS S3 for file uploads, downloads, and presigned URLs in an ASP.NET Core application. Understanding this integration is crucial for building scalable and secure applications that handle file storage in the cloud. Prior knowledge of ASP.NET Core and AWS services will be beneficial as we delve into the implementation details.

20

Mar

2026

CWE-862: Missing Authorization - Understanding Broken Access Control and Its Implications

Shubham Saini 417 views

This article delves into CWE-862, which highlights the critical issue of missing authorization in software systems, leading to significant security vulnerabilities. The focus will be on understanding how broken access control can result in data breaches, the real-world implications of such flaws, and practical strategies for mitigation. Readers should have a basic understanding of web application security principles and authorization mechanisms.

15

Mar

2026

Understanding Interfaces in C#: A Comprehensive Guide

Shubham Saini 318 views

In this blog post, we will dive deep into the concept of interfaces in C#. You'll learn what interfaces are, their importance in object-oriented programming, and how to implement them effectively in your code.

30

Mar

2026

Mastering Async Await in JavaScript: Deep Dive into Asynchronous Programming

Shubham Saini 245 views

This post delves into the intricacies of Async Await in JavaScript, a fundamental feature that simplifies working with asynchronous code. Understanding Async Await is crucial for modern web development as it addresses the challenges of callback hell and promotes cleaner, more maintainable code. Before diving in, familiarity with Promises and basic JavaScript syntax is beneficial.

20

Mar

2023

Screen Recording with Audio using JavaScript in ASP.NET MVC

Shubham Batra 7,070 views Watch Video

In this tutorial, you will learn how to create an Screen Recording with Audio using JavaScript MediaRecorder API

30

Mar

2026

Mastering DOM Manipulation with JavaScript: Techniques, Best Practices, and Real-World Applications

Shubham Saini 223 views

This article delves deep into the intricacies of DOM manipulation using JavaScript, focusing on core techniques, best practices, and real-world applications. Understanding DOM manipulation is crucial for any web developer, as it allows for dynamic interaction with web pages. Prior knowledge of JavaScript fundamentals, HTML structure, and CSS styling will enhance your learning experience.

03

Apr

2026

Debugging Gemini API Integration Issues in ASP.NET Applications

Shubham Saini 200 views

This guide delves into the complexities of integrating the Gemini API within ASP.NET applications and the common issues developers face. Understanding how to effectively debug these integration issues is crucial for ensuring seamless application performance and user satisfaction. Prior knowledge of ASP.NET and basic API concepts is recommended for better comprehension.

15

Aug

2022

Input validation to stop backSlash on keypress and copy paste

Shubham Batra 6,616 views

Hello guys, sometimes we need to put validations on textboxes to accept certain type of data. For that purpose , we have to apply validation to stop backSlash on keypress and also on copy/paste. So we will see how to apply Input validation on keypress and copy paste using javascript.

10

Apr

2026

Integrating Python with SQL: A Deep Dive into ORM Techniques Using SQLAlchemy

Shubham Saini 337 views

In this comprehensive guide, readers will explore how to leverage Object-Relational Mapping (ORM) techniques in Python using SQLAlchemy to interact with SQL databases efficiently. Understanding ORM is crucial for developers looking to streamline database operations and enhance code maintainability. A solid foundation in Python and SQL is recommended for better comprehension of the concepts discussed.

19

May

2023

flat() and flatMap() in JavaScript

Shubham Batra 4,340 views

n JavaScript, flat() and flatMap() are array methods introduced in ECMAScript 2019 (ES10) that allow you to work with nested arrays in a concise manner. Let's explore each method:

25

Mar

2026

Mastering Angular Components and Templates: A Deep Dive into Their Architecture and Best Practices

Shubham Saini 351 views

Readers will explore the in-depth functionalities of Angular components and templates, understanding their pivotal roles in building robust applications. This knowledge is crucial for creating maintainable and scalable web applications with Angular. A basic understanding of Angular and TypeScript is recommended for optimal comprehension.

06

May

2026

Integrating Hugging Face Inference API with ASP.NET Core for NLP Models

Shubham Saini 305 views

Readers will learn how to integrate the Hugging Face Inference API into an ASP.NET Core application for Natural Language Processing (NLP) tasks. This integration allows developers to leverage state-of-the-art NLP models without extensive machine learning expertise. Prior knowledge of ASP.NET Core and basic understanding of REST APIs will be beneficial.

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

AWS S3 File Upload Integration in ASP.NET Core - Upload, Download and Presigned URLs

CWE-862: Missing Authorization - Understanding Broken Access Control and Its Implications

Understanding Interfaces in C#: A Comprehensive Guide

Mastering Async Await in JavaScript: Deep Dive into Asynchronous Programming

Screen Recording with Audio using JavaScript in ASP.NET MVC

Mastering DOM Manipulation with JavaScript: Techniques, Best Practices, and Real-World Applications

Debugging Gemini API Integration Issues in ASP.NET Applications

Input validation to stop backSlash on keypress and copy paste

Integrating Python with SQL: A Deep Dive into ORM Techniques Using SQLAlchemy

flat() and flatMap() in JavaScript

Mastering Angular Components and Templates: A Deep Dive into Their Architecture and Best Practices

Integrating Hugging Face Inference API with ASP.NET Core for NLP Models

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