HTTP Post Request sending as a GET Request

Questions
1

When making an HTTP POST request, with the request method set to POST, I am receiving an error in the response that a GET request is not allowed on this endpoint, but I am not making a GET request. screenshot below. I am using the desktop version for windows.

image
image1915×1047 325 KB

2

Welcome to the community @ReduceMyIns!

Can you please post the full output of the error on the right? Maybe there is something in there that sheds some light on what is going on here.

3

ive tried resetting the “request method” field, deleting the node, and starting with a fresh one. below is the full output.

Cause
{“status”:“rejected”,“reason”:{“message”:“405 - {“message”:“The requested resource does not support http method ‘GET’.”}”,“name”:“Error”,“stack”:“Error: Request failed with status code 405\n at createError (C:\Users\Chase Henderson\AppData\Local\Programs\n8n\resources\app\node_modules\axios\lib\core\createError.js:16:15)\n at settle (C:\Users\Chase Henderson\AppData\Local\Programs\n8n\resources\app\node_modules\axios\lib\core\settle.js:17:12)\n at IncomingMessage.handleStreamEnd (C:\Users\Chase Henderson\AppData\Local\Programs\n8n\resources\app\node_modules\axios\lib\adapters\http.js:269:11)\n at IncomingMessage.emit (node:events:406:35)\n at IncomingMessage.emit (node:domain:470:12)\n at endReadableNT (node:internal/streams/readable:1331:12)\n at processTicksAndRejections (node:internal/process/task_queues:83:21)”}}

Stack

NodeApiError: UNKNOWN ERROR - check the detailed error for more information
    at Object.execute (C:\Users\Chase Henderson\AppData\Local\Programs\n8n\resources\app\node_modules\n8n-nodes-base\dist\nodes\HttpRequest\HttpRequest.node.js:1119:27)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)
    at async Workflow.runNode (C:\Users\Chase Henderson\AppData\Local\Programs\n8n\resources\app\node_modules\n8n-workflow\dist\src\Workflow.js:594:28)
    at async C:\Users\Chase Henderson\AppData\Local\Programs\n8n\resources\app\node_modules\n8n-core\dist\src\WorkflowExecute.js:536:49
1 Like
4

Same here. I am using the method “POST” and receiving the error message “405 - “{"detail":"Method \"GET\" not allowed.","status_code":405}””

POST X GET

Edit: Sounds like this occurs only “importing cUrl”. Directly insert works here.

5

Hey @Antonio_Morais,

That is interesting, which version of n8n are you using?

6

Hey @Jon .I am using version 0.233.1.
Important to say that I recently updated to this version importing all credentials (maybe helps the investigation). This flow was creating from new one.

7

Hey @Antonio_Morais,

I would be surprised if the credential import caused the issue but I will dig into the curl command import to see if that is the cause.

2 Likes
8

I also encountered this today I was setting up a simple HTTP Request node to POST some contact form data to my API. Had everything configured - method set to POST, JSON body all filled out, headers good to go. Hit execute and… it worked! Got back a 200 response with data. Perfect, right?

Wrong. Nothing was actually being created.

After way too much time checking my API code, CORS settings, authentication, and questioning my entire existence, I finally found the problem: I had a typo in my URL - //api/contacts instead of /api/contacts (extra slash).

The weird part? n8n didn’t error out or warn me. Instead, it just… silently changed my POST to a GET request. So I was getting data back (which is why it looked like it worked), but obviously not creating anything.

Once I fixed the typo to /api/contacts, everything worked perfectly.

Not sure if this is expected behavior, but it would’ve saved me a ton of debugging time if n8n had either:

  • Thrown an error about the weird URL

  • Actually sent the POST I configured

  • Or at least shown somewhere in the logs that it switched methods on me

Anyway, hope this saves someone else the headache. Check your URLs for extra slashes! - text credits to Replit agent! :slight_smile: