| object | The configurations of the Message Service (MNS) topic trigger. | |
| filterTag | string | The filter tag. Function execution is triggered only when a message that contains the specified filter tag is received. | “serverless” |
| notifyContentFormat | string | The content format of the trigger event. The following two content formats are supported:
| JSON |
| notifyStrategy | string | The retry policy. The following two retry policies are supported:
- BACKOFF_RETRY: indicates a backoff retry. A total of three retries are performed and the gap of each retry is a random value between 10 seconds and 20 seconds.
- EXPONENTIAL_DECAY_RETRY: indicates an exponentially decaying retry. A total of 176 retries are performed, and the gap exponentially increases to 512 seconds. The retries are performed is one day. The interval between two consecutive retries exponentially increases to a maximum of 512 seconds. For example, 1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 512... 512. A total of 167 512s exist.
| BACKOFF_RETRY |