What is the WeChat api interface?

Wechat api is a public platform message interface, which provides new message processing methods for developers. The message interface of WeChat public platform provides a new message processing method for developers. The message interface of WeChat public platform provides developers with the ability to interact with users. For WeChat WeChat official account, which has successfully accessed the message interface, when a user sends a message to the official WeChat account, the WeChat public platform server will push the message to the accessed URL with an http request, and the third-party server can reply to a specific structure through a response packet, thus achieving the purpose of replying to the message.