Rate Limiting

Rate limiting refers to the policy of allowing the number of open API requests in a unit time. Rate limiting can protect the user’s backend services, set a threshold for the number of allowable requests in a certain period of time, generally set according to the computational capacity of the backend resources, network bandwidth, business performance loss and other indicators. In addition, the API gateway has a unified traffic upper limit. If the QPS of each API group exceeds 1000, it will return a 429 error code, with the error message Too many requests.