Software⏱️ 2 min read📅 2026-06-03

How to Fix: Web API Put Request generates an Http 405 Method Not Allowed error

The Web API is configured to only accept GET, POST, and DELETE requests. The PUT method is not enabled.

Quick Answer: Check the Web API configuration to enable the PUT method.

📋 Table of Contents

  1. 🔍 Why This Happens
  2. 🚀 How to Resolve This Issue
  3. 🎯 Final Words

The HTTP 405 Method Not Allowed error occurs when a client attempts to use a method (in this case, PUT) on a resource that only supports other methods (typically GET, POST, PATCH, DELETE). In your ASP.NET MVC frontend, you're making a PUT request to the Web API, but the API might not be configured to handle this method.

🔍 Why This Happens

  • The Web API might not be configured to handle PUT requests.

🚀 How to Resolve This Issue

Method 1: Enable PUT Method on Web API

  1. Step 1: Open the Web API project in Visual Studio and navigate to the Startup.cs file.

Method 2: Use a Different HTTP Method

  1. Step 1: If you need to update existing data, consider using the PATCH method instead of PUT.

🎯 Final Words

To resolve the HTTP 405 Method Not Allowed error, you can enable the PUT method on your Web API or use a different HTTP method to update data. Always check the documentation of your Web API to ensure that the desired HTTP method is supported.

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