Webhook - change response code based on criteria

Dears,

I am new to n8n and i have a beginner question regarding webhook I would like to change the response code of a webhook based on some business logic criteria. For example:

  • If entry with some id allready exists, webhook should return http 400
  • If entry with some id doies not exists, insert the recort into database and return http 200

I have tried to set the status code in Function and then reference its ouotput in webhook. But it is not working (probbably due to execution order):

{
  "name": "POC_http_code",
  "nodes": [
	{
	  "parameters": {},
	  "name": "Start",
	  "type": "n8n-nodes-base.start",
	  "position": [
		250,
		300
	  ],
	  "typeVersion": 1
	},
	{
	  "parameters": {
		"httpMethod": "POST",
		"path": "02da24c1-b93f-488a-9fac-b0c5bd2c1270",
		"responseCode": "={{$node[\"MockLogic\"].json[\"statusCode\"]}}",
		"responseMode": "lastNode",
		"responseData": "allEntries",
		"options": {}
	  },
	  "name": "Webhook",
	  "type": "n8n-nodes-base.webhook",
	  "position": [
		450,
		450
	  ],
	  "webhookId": "02da24c1-b93f-488a-9fac-b0c5bd2c1270",
	  "typeVersion": 1
	},
	{
	  "parameters": {
		"functionCode": "var id = items[0].json.body.id;\n\nif (id > 5) {\n  items[0].json.statusCode = 400\n} else {\n  items[0].json.statusCode = 200\n}\n\nreturn items;"
	  },
	  "name": "MockLogic",
	  "type": "n8n-nodes-base.function",
	  "position": [
		650,
		450
	  ],
	  "typeVersion": 1
	}
  ],
  "connections": {
	"Webhook": {
	  "main": [
		[
		  {
			"node": "MockLogic",
			"type": "main",
			"index": 0
		  }
		]
	  ]
	}
  },
  "active": false,
  "settings": {},
  "id": "36"
}

I have also tried to use Set component without sucess. Can anyone point me to right direction? Thanks!

Welcome to the community @rainbow2!

What you are trying to do is sadly not possible yet. If you are interested in that feature please create a feature-request. We can then schedule according to demand.