Hi I was wondering if anyone has used the airlabs.co api to use AITA codes in FF as a dropdown or text field?   When I tried to set it up i got his error when using the Test Connection

• Sorry, Dynamic URLs cannot be tested

This is the line I used in the Notification URL field.

• https://airlabs.co/api/v9/airports?iata_code[450 sanitize_url=1]

I get this error

• Missing api_keywrong_paramsIn many cases, the test connection lets you know if the link is reachable. The receiving API may not return a successful response when the data is not included. Please submit the form to test with data.

When this line is used

• https://airlabs.co/api/v9/airports?iata_code