AWS IoT MQTT setup quota and throttling per client

Question

Is there any way setup quota and throttling such as ApiGateway for AWS IoT? I want to avoid a situation where clients will send a huge number of messages to MQTT, for example, I would like to limit messages sent to MQTT to 1 message per second.

Similar question with body validation (structure and size).

Of course, I can use lambda and ApiGateway and then send message to MQTT, but it seems to me that this is an overhead

Perhaps there are some best practices?

Answer 1

For the throttling part, I have used API Gateway with api key and usage plan . You don't need a lambda, api gateway can be integrated with AWS IoT service directly for publish. The structure of the request can be validated using request validation in API Gateway .

Now, if you also need to check the content length, then you would need to have a lambda to validate it. Or you can use AWS WAF .