The dsl is the object that stores properties of Transactions. Supported dsl type keys are GENERIC_DSL, CODESV_DSL, WIREMOCK_DSL, HAR_DSL, SWAGGER2_DSL, SWAGGER3_DSL, TAURUS_RECORDING, RR_PAIR. For more information, see Adding Transactions.

The easiest way to create a valid dsl for an API call is to create a Transaction in the web interface and copy and paste the response.