Setup the webhook in Voucherify
In your Voucherify Project Settings add webhook to https://voucherify-webhooks-example.glitch.me/webhooks (preferably set it to notify about all events)
Start with a code publish and redemption
This is optional, you can just use your voucherify account to generate events, but we can help you with this here.
For this we need your Voucherify Application keys from your Project Settings and a campaign name of your choice.