Listen to a Certain Port, coming from RIOT API

Hey guys i got a Question, obviously :wink:
I just start right away :
Source: https// developer. riotgames .com/apis#tournament-stub-v4/POST_registerProviderData

Riot Api i want to use:
/lol/tournament-stub/v4/providers

The JSon message i have to send looks like:
{
“region”: “”,
“url”: “”
}

url = string The providers callback URL to which tournament game results in this region should be posted. The URL must be well-formed, use the http or https protocol, and use the default port for the protocol (http URLs must use port 80, https URLs must use port 443).

As far as i know wix doesnt offer a possibility to listen to a certain port.
So i have no Idea how i can recive the callback of the API.

What i tried:
Create a RestApi in wix and center the url of the rest api into the json body, but with no succsess.

Maybe http-functions is what you need? Velo: Exposing a Site API with HTTP Functions | Help Center | Wix.com

Hey there, we will try that … but we are kinda sure we did that already at the beginning :wink: still thx… we will keep u informed

hmm didnt worked with the http function… at least my coworker told me he tried that already… someone got another idear? thx alot guys !