Filter values

curl https://api.apihorseracing.com/v1/reference \
  -H "X-API-Key: $AHR_KEY"

$ch = curl_init('https://api.apihorseracing.com/v1/reference');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_HTTPHEADER     => ['X-API-Key: ' . getenv('AHR_KEY')],
]);
$data = json_decode(curl_exec($ch), true)['data'];

const res = await fetch(
  'https://api.apihorseracing.com/v1/reference',
  { headers: { 'X-API-Key': process.env.AHR_KEY } }
);
const { meta, data } = await res.json();

import os, requests

r = requests.get(
    "https://api.apihorseracing.com/v1/reference",
    headers={"X-API-Key": os.environ["AHR_KEY"]},
).json()

curl https://api.apihorseracing.com/v1/reference?key=$AHR_KEY

$url  = 'https://api.apihorseracing.com/v1/reference' . '?key=$AHR_KEY';
$data = json_decode(file_get_contents($url), true)['data'];

const res = await fetch(
  'https://api.apihorseracing.com/v1/reference?key=$AHR_KEY'
);
const { meta, data } = await res.json();

import os, requests

r = requests.get(
    "https://api.apihorseracing.com/v1/reference?key=$AHR_KEY",
).json()