/dev/fleets/{fleet_id}/members/
/legacy/fleets/{fleet_id}/members/
/v1/fleets/{fleet_id}/members/
curl --location --request POST 'https://esi.evetech.net/latest/fleets//members/' \
--header 'Content-Type: application/json' \
--data-raw '{
"character_id": 0,
"role": "fleet_commander",
"squad_id": 0,
"wing_id": 0
}'
{}