Is it possible to create a AWS IoT topic dynamically .

For example, Is it possible to set a RULE where once the message is received, It creates a topic dynamically or through lambda function.

Or is it possible through AWS-SDK

Any suggestion would be helpful

You don’t have to explicitly “create” topics in AWS IoT (MQTT). You would simply subscribe to, or start posting to a topic and if the topic doesn’t already exist the IoT service will create it automatically.