Is it possible to create custom responses for webhooks?

Configuration
1

Hello all,

I’m trying to solve the following scenario:

  • Send a request to HA
  • Do something on said request (this is can be accomplished with webhooks)
  • Return a CUSTOM response (the state of a sensor following the automation for example)
  • Do something with said response in my other device

From what I gathered from the docs and countless hours of searching, it is not possible to create a custom reponse for webhooks to pass an arbitrary payload back to the caller.

Thanks!

2 Likes
2

Not an expert but trying to do something similar, I found this useful

The custom response could be built with the REST Command that is called as part of the automation triggered by the webhook.
HTH

3

Thanks for answering.

I’ve already stumbled uppon that post, but sadly I fail to see how it can help me.

The last step of the automation can indeed be a REST command, but that means a new request from HA to my other device, not a custom response.

I do think it’s impossible, which is sad.

4

I think I get you now…Just to confirm, you want the http response to the websocket request to contain some custom info in the body , ie more than a 200 ok in the header?

I have no idea how to do that, sorry.

5

That is exactly what I want, for example:

  • Request: GET /webhooks/{id}
  • Response: 200 OK with data {“whateverIwant”: “whateverValue”}
6

Hey did you somehow manage to do that in the meantime?

7

Did anyone of you guys mange to find a solution to this?

I want to do this:

  • Request: GET /webhooks/{id}
  • Response: 200 OK with data {“whateverIwant”: “whateverValue”}

It is possible to do a custom response for a webhook with Google Apps Script for example. But i cant find a way to do this in Home Assistant or Node Red in Home Assistant…

8

I need to do the same thing. I have a service that post’s a validation token (a string) to the webhook that needs to be sent back in an HTTP 200 response within 10 seconds. I was hoping this was something I could use with Nabu Casa, but I see no way to process the incoming JSON payload and then responding with my own JSON.

Has anyone found a way?

9

Hello iam also looking for this

10

I am also looking for this

11

Hey, sounds like a pretty basic feature for HA to have… I’m surprised it’s missing.

12

+1 for this feature.

13

Would like this as well

14

Yeah, seems that the easiest solution right now is through NodeRed.

15

I am also wanting to do this. I want to expose an webhook URL that will just response true or false but I also can not find any way to do it with node red and the webhook node.

16

I spoke/wrote too early, I needed to use the HTTP IN node and make requests to http://homeassistant:1880/endpoint/my-end-point-here

17

It would be nice to have such a functionality without the overhead of using node red just to provide custom body data and a custom endpoint name.
The idea is to create or simulate a customizable Api endoint on the HA server, that can be used locally to provide customizable json payload to the caller.