Fetching Firewall Data Using cURL and Postman for API Access

 you can use curl from your terminal for example:

samer@Samers-MacBook-Pro ~ % curl -X GET 'http://192.168.1.250/api/?type=op&cmd=<show><system><info></info></system></show>' -u "api:password@199"

note that the -u the two words api and password@199 are username and password to authenticate the session while trying to fetch data from firewall while using CURL.

or, you can use the Postman app.