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API security - C# Corner

Home
Topics

API security

113 posts about API security

7 Authentication Concepts Every Developer Should Know: From Basic Auth to OAuth2 and OIDC

Sagar Rane

Sagar Rane

15dPublished Aug 22, 2026, 8:02 AMUpdated Aug 24, 2026, 11:38 AM

263

ASP.NET Core API Security: Detecting Dependency Vulnerabilities in CI

Saurav Kumar

Saurav Kumar

19dPublished Aug 19, 2026, 7:18 AMUpdated Aug 20, 2026, 7:40 AM

274

Building Distributed Rate Limiting with Redis and YARP Reverse Proxy

Riya Patel

Riya Patel

1moPublished Aug 6, 2026, 7:03 AMUpdated Aug 6, 2026, 7:41 AM

1.8k

Implementing JWT Authentication with Secure Refresh Tokens in .NET Core

Sardar Mudassar Ali Khan

Sardar Mudassar Ali Khan

1moPublished Aug 3, 2026, 8:47 AMUpdated Aug 5, 2026, 6:44 AM

370

Securing MCP Servers Against Prompt Injection and Tool Poisoning

Ananya Desai

Ananya Desai

1moPublished Aug 3, 2026, 7:43 AMUpdated Aug 4, 2026, 10:25 AM

334

API Rate Limiting in ASP.NET Core: Protecting Your Applications from Abuse

Ananya Desai

Ananya Desai

1moPublished Jul 29, 2026, 6:17 AMUpdated Jul 31, 2026, 4:50 AM

392

Rate Limiting in ASP.NET Core: Protecting APIs from Abuse and Traffic Spikes

Saurav Kumar

Saurav Kumar

1moPublished Jul 29, 2026, 6:25 AMUpdated Jul 30, 2026, 10:55 AM

383

Global Exception Handling in ASP.NET Core: Building Consistent and Secure Error Responses

Niharika Gupta

Niharika Gupta

1moPublished Jul 29, 2026, 6:20 AMUpdated Jul 30, 2026, 10:55 AM

415

Building Production-Ready Rate Limiting in ASP.NET Core 10

Niharika Gupta

Niharika Gupta

1moPublished Jul 28, 2026, 5:35 AMUpdated Jul 28, 2026, 9:02 AM

2.1k

ASP.NET Core 10 Authentication & Authorization Best Practices

Ananya Desai

Ananya Desai

1moPublished Jul 24, 2026, 6:04 AMUpdated Jul 27, 2026, 4:33 AM

400

OAuth 2.1 Authentication in ASP.NET Core APIs: A Practical Guide

Riya Patel

Riya Patel

1moPublished Jul 23, 2026, 10:34 AMUpdated Jul 24, 2026, 5:22 AM

383

Rate Limiting in ASP.NET Core APIs: Best Practices for Scalable and Secure Applications

Riya Patel

Riya Patel

1moPublished Jul 23, 2026, 10:33 AMUpdated Jul 23, 2026, 10:41 AM

1.6k

JWT Session 12: Integrate JWT Authentication with ASP.NET Core Identity in ASP.NET Core Web API

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 9:39 AMUpdated Jul 23, 2026, 4:51 AM

248

Azure API Management Best Practices

Nidhi Sharma

1moPublished Jul 22, 2026, 6:26 AMUpdated Jul 22, 2026, 9:12 AM

2.7k

OAuth 2.1 in ASP.NET Core Explained

Niharika Gupta

Niharika Gupta

1moPublished Jul 22, 2026, 6:28 AMUpdated Jul 22, 2026, 7:47 AM

3.2k

JWT Session 9: Policy-Based Authorization in ASP.NET Core Web API: Beyond Roles

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 9:20 AMUpdated Jul 22, 2026, 7:25 AM

200

Azure API Management Best Practices for Secure Enterprise APIs

Ananya Desai

Ananya Desai

1moPublished Jul 21, 2026, 4:48 AMUpdated Jul 22, 2026, 6:17 AM

250

JWT Session 8: Implementing Role-Based Authorization in ASP.NET Core Web API Using JWT

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 9:12 AMUpdated Jul 21, 2026, 9:41 AM

285

Securing ASP.NET Core APIs with Microsoft Entra ID Authentication

Niharika Gupta

Niharika Gupta

1moPublished Jul 21, 2026, 4:51 AMUpdated Jul 21, 2026, 9:34 AM

1.9k

JWT Session 7: Understanding Claims in ASP.NET Core JWT Authentication

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 9:01 AMUpdated Jul 21, 2026, 8:02 AM

288

JWT Session 6: Protecting ASP.NET Core Web APIs Using the [Authorize] Attribute

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 8:40 AMUpdated Jul 21, 2026, 6:07 AM

273

JWT Session 5: How ASP.NET Core Validates JWT Tokens Behind the Scenes

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 8:28 AMUpdated Jul 21, 2026, 4:44 AM

303

JWT Session 3: How JWT Authentication Flows Through an ASP.NET Core Web API

Ajay Narkhedkar

Ajay Narkhedkar

1moPublished Jul 19, 2026, 7:29 AMUpdated Jul 20, 2026, 10:30 AM

244

JWT vs OAuth 2.1 vs OpenID Connect: Choosing the Right Authentication Strategy

Niharika Gupta

Niharika Gupta

1moPublished Jul 20, 2026, 5:00 AMUpdated Jul 20, 2026, 8:47 AM

1.3k

Implementing Rate Limiting in ASP.NET Core for Secure and Scalable APIs

Nidhi Sharma

1moPublished Jul 20, 2026, 4:59 AM

276

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Related topics

Authentication Authorization JWT web security system design JSON Web Token Access Token OpenID Connect Token Based Authentication SSO Single Sign-On OAuth2