How to limit service rate through API gateway Apache APISIX?

Question

To prevent malicious attacks, it is necessary to limit the speed of the client. How to implement it through APISIX?

Answer 1

Various plugins have been implemented in APISIX. To solve your problem, you can refer to Traffic Control plugins. More information: https://apisix.apache.org/plugins/#Traffic

Answer 2

You could implement this by using the limit-count plugin. Below is an example for limiting the count to be two requests in time window of sixty seconds; if it is increased over that in sixty seconds, it will return 503 as the error code.

curl -i http://127.0.0.1:9180/apisix/admin/services/1 \
-H 'X-API-KEY: edd1c9f034335f136f87ad84b625c8f1' -X PUT -d '
{
    "plugins": {
        "limit-count": {
            "count": 2,
            "time_window": 60,
            "rejected_code": 503,
            "key": "remote_addr",
            "group": "services_1#1640140620"
        }
    },
    "upstream": {
        "type": "roundrobin",
        "nodes": {
            "127.0.0.1:1980": 1
        }
    }
}'