How we know this is mandatory parameter or not mandatory to fetch aero api service

Hi, i am new to here.
i am fetching recods from flightaware aeroapi service, some api retrieving records from without any parameter some api not retrieving record. how we determine mandatory parameter for this method.

For Example below api return only one record.

below parameter does not return anything

i want to return particular date range records or all the records.
i have another question, how to identify total records of the method or service.
kindly help me to achieve this.

The endpoint you are using now is returning information about the aircraft type set in the parameter, so you would only receive one result.

What specific information are you looking for within the API?

Taylor Fischer -
Commercial Support

Toll Free: +1.800.713.8570
Support Line:+1.713.588.6514

Eleven Greenway Plaza, Suite 2900 - Houston, Texas - 77046

Learn about FlightAware Global and Premium Accounts: Commercial Services - FlightAware