To use Product Hunt integration in n8n, start by adding the HTTP Request node to your workflow canvas and authenticate it using a generic authentication method. Once connected, you can make custom API calls to Product Hunt to query the data you need using the URLs you provide, for example: you can create records in Product Hunt by sending a POST request to the appropriate endpoint with the necessary data structure. For example, if you're creating a new product, ensure your request body includes fields like name, tagline, and URL. To update records, simply use a PATCH request with the relevant product ID and the fields you wish to change.