API (Application Program Interface) flow control method and device

The invention relates to an API (Application Program Interface) flow control method and device. The method comprises the following steps: receiving a user request of a client through a WEB server; the user request comprises a client ID and a product ID; determining a traffic limiting key according to the user request, performing progressive increase operation on the traffic limiting key, and returning a numerical value after progressive increase; and querying a corresponding flow limiting rule of the user request in the mysql database, comparing the progressively increased value with a flow limiting threshold in the flow limiting rule, and determining whether to limit the flow or not according to a comparison result. According to the method, the mysql database and the redis database are combined, so that addition of the dynamic flow limiting rule is realized, and multi-granularity flow limiting control can be realized. 本发明涉及一种API流量控制方法及装置，所述方法包括通过WEB服务器接收客户端的用户请求；所述用户请求包括客户端ID和产品ID；根据所述用户请求确定限流key，对所述限流key进行递