createTournament

curl --location --request POST 'https://api.challonge.com/v2/tournaments.json' \
--header 'Accept;' \
--header 'Authorization-Type;' \
--header 'Authorization: <api-key>' \
--header 'Content-Type: application/json' \
--data-raw '{
    "data": {
        "type": "Tournaments",
        "attributes": {
            "name": "Rainbow Six: Siege Tournament",
            "url": "r6siege_tournament_xx",
            "tournament_type": "single elimination",
            "private": true,
            "starts_at": "string",
            "description": "string",
            "notifications": {
                "upon_matches_open": true,
                "upon_tournament_ends": true
            },
            "match_options": {
                "third_place_match": true,
                "accept_attachments": false
            },
            "registration_options": {
                "open_signup": false,
                "signup_cap": 0,
                "check_in_duration": 0
            },
            "seeding_options": {
                "hide_seeds": false,
                "sequential_pairings": false
            },
            "double_elimination_options": {
                "split_participants": false,
                "grand_finals_modifier": ""
            },
            "round_robin_options": {
                "iterations": 2,
                "ranking": "",
                "pts_for_game_win": 1,
                "pts_for_game_tie": 0,
                "pts_for_match_win": 1,
                "pts_for_match_tie": 0.5
            },
            "swiss_options": {
                "rounds": 2,
                "pts_for_game_win": 1,
                "pts_for_game_tie": 0,
                "pts_for_match_win": 1,
                "pts_for_match_tie": 0.5
            },
            "free_for_all_options": {
                "max_participants": 4
            }
        }
    }
}'