Abstract: Example implementations relate to the processing of refresh token requests at an API gateway. The API gateway determines a first time associated with receipt of the refresh token request and a second time associated with the generation of a current access token. The current access token and a refresh token in the refresh token request are provided by the API gateway to the client device for accessing a backend service. The API gateway determines whether a difference between the first time and the second time is within a pre-defined threshold duration. When the difference between the first time and the second time is within the pre-defined threshold, the API gateway denies the refresh token request for generating the new access token and transmits the current access token back to the client device.

Abstract: Example implementations relate to the processing of refresh token requests at an API gateway. The API gateway determines a first time associated with receipt of the refresh token request and a second time associated with the generation of a current access token. The current access token and a refresh token in the refresh token request are provided by the API gateway to the client device for accessing a backend service. The API gateway determines whether a difference between the first time and the second time is within a pre-defined threshold duration. When the difference between the first time and the second time is within the pre-defined threshold, the API gateway denies the refresh token request for generating the new access token and transmits the current access token back to the client device.

Abstract: Systems and methods are provided for changing the number of replicas of a pod based on the size of the message queue. A method may include determining a number of replicas of a pod; determining an owner threshold for a size of a message queue of the replicas of the pod, the size representing a number of messages waiting in the message queue to be processed by the replicas of the pod, the owner threshold being provided by an owner of the pod; occasionally determining, for the replicas of the pod, the size of the message queue, and a rate of change of the size of the message queue; and responsive to determining the size of the message queue, changing the number of replicas of the pod based on the determined size of the message queue, the determined rate of change, and the owner threshold.