First of all, in order to receive events from the Channel Manager API, you need to register a webhook endpoint in the Fourvenues API. If you are in a local environment, you can use a tool like ngrok to expose your local server to the internet.

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Register your webhook endpoint

curl --request POST \
  --url https://channels-service-alpha.fourvenues.com/webhooks/endpoints \
  --header 'Content-Type: application/json' \
  --data '{
  "name": "<string>",
  "url": "<string>"
}'
Response example: 
{
  "_id": "<string>",
  "name": "<string>",
  "url": "<string>",
  "sign_secret": "<string>"
}