Adicionar produto ao carrinho

curl -X POST "https://app.nextagsai.com.br/api/contacts/123456789/cart/6001" \
  -H "X-ACCESS-TOKEN: $NEXTAGS_API_KEY" \
  --data-urlencode 'quantity=2'

const resposta = await fetch('https://app.nextagsai.com.br/api/contacts/123456789/cart/6001', {
  method: 'POST',
  headers: {
    'X-ACCESS-TOKEN': process.env.NEXTAGS_API_KEY,
  },
  body: new URLSearchParams({
    quantity: 2,
  }),
});
const dados = await resposta.json();
console.log(resposta.status, dados);

import os

import requests

resposta = requests.post(
    "https://app.nextagsai.com.br/api/contacts/123456789/cart/6001",
    headers={"X-ACCESS-TOKEN": os.environ["NEXTAGS_API_KEY"]},
    data={
        "quantity": 2,
    },
    timeout=30,
)
print(resposta.status_code, resposta.json())

<?php
$ch = curl_init('https://app.nextagsai.com.br/api/contacts/123456789/cart/6001');
curl_setopt_array($ch, [
    CURLOPT_RETURNTRANSFER => true,
    CURLOPT_CUSTOMREQUEST => 'POST',
    CURLOPT_HTTPHEADER => [
        'X-ACCESS-TOKEN: ' . getenv('NEXTAGS_API_KEY'),
    ],
    CURLOPT_POSTFIELDS => http_build_query([
        'quantity' => 2,
    ]),
]);
$dados = json_decode(curl_exec($ch), true);
echo curl_getinfo($ch, CURLINFO_HTTP_CODE), PHP_EOL;
print_r($dados);