This is the part that makes Flows a real integration engine: call any API and receive events from other applications. If you know what a webhook is, this is where Flows becomes unstoppable.
HTTP Request
An HTTP node lets you make requests to any service with an API (your ERP, your spreadsheet, your payment gateway):
- Method: POST to send data, GET to read, and the rest as the service needs.
- URL and headers: configure authentication and headers.
- Response: the response feeds the next steps of the flow (e.g. the id created in your ERP).
Webhooks
Every flow has a webhook URL. Other applications notify that URL and the flow triggers instantly:
- Inbound events: "payment approved", "new contact in my external CRM"...
- Parsing: the payload is validated and used inside the flow.
- Retries: on failure, Flows retries automatically.