InboundRule.Sources being an array causing `422 unprocessable_entity: You specified an invalid type for one of the sources error response.

[azakhi]

According to DigitalOcean API creating firewall section (https://developers.digitalocean.com/documentation/v2/#create-a-new-firewall) sources attribute of InboundRule should be a single object. Providing an array results in an error response as given in title. To be sure I tested following bodies using Postman:

{ "name": "test", "inbound_rules": [ { "protocol": "tcp", "ports": "22", "sources": [ { "addresses": [ "18.0.0.0/8" ] } ] } ] }
Response: { "id": "unprocessable_entity", "message": "You specified an invalid type for one of the sources.", "request_id": "" }

Single object request:
{ "name": "test", "inbound_rules": [ { "protocol": "tcp", "ports": "22", "sources": { "addresses": [ "18.0.0.0/8" ] } } ] }
Response: successfully created firewall