Microsoft Power Automate, previously known as Microsoft Flow, is a cloud-based service that allows you to automate workflows and integrate various applications and services without the need for extensive coding. It enables you to create automated processes, called flows, that can be triggered by various events, including HTTP triggers.
An HTTP trigger in Microsoft Power Automate allows you to start a flow by making an HTTP request to a specific URL. This can be useful for integrating Power Automate with external systems, services, or applications that can send HTTP requests.