Webhook
Glosign Webhook is called by Glosign Server to the client service URL to notify you when major changes to the contract are made.
Content-Type
Application/json
* The webhook sends you notifications to the URL you set at specific events.
* example(complete case) : curl -H "Content-Type: application/json" -X POST -d '{ "contract": "c123456789abcdefghijklmn", "hook_type": "contract", "state": "complete" }' { WebhookURL }