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POST
/
leagues
Create a league (idempotent upsert)
curl --request POST \
  --url https://whistle.huddleup-sports.com/api/v1/leagues \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "name": "Springfield Little League",
  "externalId": "org_123",
  "currency": "usd"
}
'
import requests

url = "https://whistle.huddleup-sports.com/api/v1/leagues"

payload = {
"name": "Springfield Little League",
"externalId": "org_123",
"currency": "usd"
}
headers = {
"Authorization": "Bearer <token>",
"Content-Type": "application/json"
}

response = requests.post(url, json=payload, headers=headers)

print(response.text)
const options = {
method: 'POST',
headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
body: JSON.stringify({name: 'Springfield Little League', externalId: 'org_123', currency: 'usd'})
};

fetch('https://whistle.huddleup-sports.com/api/v1/leagues', options)
.then(res => res.json())
.then(res => console.log(res))
.catch(err => console.error(err));
<?php

$curl = curl_init();

curl_setopt_array($curl, [
CURLOPT_URL => "https://whistle.huddleup-sports.com/api/v1/leagues",
CURLOPT_RETURNTRANSFER => true,
CURLOPT_ENCODING => "",
CURLOPT_MAXREDIRS => 10,
CURLOPT_TIMEOUT => 30,
CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
CURLOPT_CUSTOMREQUEST => "POST",
CURLOPT_POSTFIELDS => json_encode([
'name' => 'Springfield Little League',
'externalId' => 'org_123',
'currency' => 'usd'
]),
CURLOPT_HTTPHEADER => [
"Authorization: Bearer <token>",
"Content-Type: application/json"
],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
echo "cURL Error #:" . $err;
} else {
echo $response;
}
package main

import (
"fmt"
"strings"
"net/http"
"io"
)

func main() {

url := "https://whistle.huddleup-sports.com/api/v1/leagues"

payload := strings.NewReader("{\n \"name\": \"Springfield Little League\",\n \"externalId\": \"org_123\",\n \"currency\": \"usd\"\n}")

req, _ := http.NewRequest("POST", url, payload)

req.Header.Add("Authorization", "Bearer <token>")
req.Header.Add("Content-Type", "application/json")

res, _ := http.DefaultClient.Do(req)

defer res.Body.Close()
body, _ := io.ReadAll(res.Body)

fmt.Println(string(body))

}
HttpResponse<String> response = Unirest.post("https://whistle.huddleup-sports.com/api/v1/leagues")
.header("Authorization", "Bearer <token>")
.header("Content-Type", "application/json")
.body("{\n \"name\": \"Springfield Little League\",\n \"externalId\": \"org_123\",\n \"currency\": \"usd\"\n}")
.asString();
require 'uri'
require 'net/http'

url = URI("https://whistle.huddleup-sports.com/api/v1/leagues")

http = Net::HTTP.new(url.host, url.port)
http.use_ssl = true

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n \"name\": \"Springfield Little League\",\n \"externalId\": \"org_123\",\n \"currency\": \"usd\"\n}"

response = http.request(request)
puts response.read_body
{
  "data": {
    "id": "<string>",
    "name": "<string>",
    "currency": "<string>",
    "source": "<string>",
    "externalId": "<string>",
    "createdAt": "2023-11-07T05:31:56Z"
  }
}
{
"error": "invalid_json"
}
{
"error": "unauthorized"
}

Authorizations

Authorization
string
header
required

Partner API key: Authorization: Bearer whk_…. Keys are issued by the Whistle team (email tommy@huddleup-sports.com), shown once at issuance, and bound to your source namespace — they access only your leagues (plus explicit grants) and your webhook endpoints. Any auth failure returns 401 {"error":"unauthorized"}; the API never returns 403 — out-of-scope resources answer 404 exactly like nonexistent ones.

Body

application/json
name
string
required

Required, trimmed, non-empty.

paymentMode
enum<string>

Anything other than "platform" normalizes to "offline".

Available options:
offline,
platform
currency
string

ISO 4217, lowercased. Default "usd".

source
string

Derived from your key — omit, or echo your key's source; any other value returns 400 source_mismatch.

externalId
string | null

Your stable id for this league — enables idempotent upsert.

Response

Created or upserted league

data
object
Last modified on July 10, 2026