curl -X POST 'https://graph.clientloop.com/' \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <api-key>' \
  -d '{
    "query": "mutation CreatePaymentSession($input: CreatePaymentSessionInput!) { createPaymentSession(input: $input) { id orgId status amount currency callbackUrl successUrl link contactId contact { orgId id name givenName familyName email phone createdAt updatedAt } contactRef { contactId contactName contactFirstName contactLastName contactEmail contactPhone address { lines locality administrativeArea postalCode countryCode } } transactionRef invoiceIds invoiceRefs { orderId invoiceId invoiceNumber amount lines { num quantity price productId productSku productName productDescription productImageUrl } billingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } shippingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } } expirationDate paymentId createdAt updatedAt checkoutConfigurationId invoiceTotal brandLogoUrl brandName } }",
    "variables": {
      "input": {
        "orgId": "abc123",
        "amount": "100.00",
        "currency": "USD"
      }
    }
  }'

const response = await fetch('https://graph.clientloop.com/', {
  method: 'POST',
  headers: {
    'Content-Type': 'application/json',
    'Authorization': 'Bearer <api-key>',
  },
  body: JSON.stringify({
    query: `
      mutation CreatePaymentSession($input: CreatePaymentSessionInput!) {
        createPaymentSession(input: $input) {
          id
          orgId
          status
          amount
          currency
          callbackUrl
          successUrl
          link
          contactId
          contact {
            orgId
            id
            name
            givenName
            familyName
            email
            phone
            createdAt
            updatedAt
          }
          contactRef {
            contactId
            contactName
            contactFirstName
            contactLastName
            contactEmail
            contactPhone
            address {
              lines
              locality
              administrativeArea
              postalCode
              countryCode
            }
          }
          transactionRef
          invoiceIds
          invoiceRefs {
            orderId
            invoiceId
            invoiceNumber
            amount
            lines {
              num
              quantity
              price
              productId
              productSku
              productName
              productDescription
              productImageUrl
            }
            billingContact {
              contactId
              contactName
              contactFirstName
              contactLastName
              contactEmail
              contactPhone
            }
            shippingContact {
              contactId
              contactName
              contactFirstName
              contactLastName
              contactEmail
              contactPhone
            }
          }
          expirationDate
          paymentId
          createdAt
          updatedAt
          checkoutConfigurationId
          invoiceTotal
          brandLogoUrl
          brandName
        }
      }
    `,
    variables: {
      "input": {
        "orgId": "abc123",
        "amount": "100.00",
        "currency": "USD"
      }
    },
  }),
});

const { data, errors } = await response.json();

<?php

$body = <<<'JSON'
{
  "query": "mutation CreatePaymentSession($input: CreatePaymentSessionInput!) { createPaymentSession(input: $input) { id orgId status amount currency callbackUrl successUrl link contactId contact { orgId id name givenName familyName email phone createdAt updatedAt } contactRef { contactId contactName contactFirstName contactLastName contactEmail contactPhone address { lines locality administrativeArea postalCode countryCode } } transactionRef invoiceIds invoiceRefs { orderId invoiceId invoiceNumber amount lines { num quantity price productId productSku productName productDescription productImageUrl } billingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } shippingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } } expirationDate paymentId createdAt updatedAt checkoutConfigurationId invoiceTotal brandLogoUrl brandName } }",
  "variables": {
    "input": {
      "orgId": "abc123",
      "amount": "100.00",
      "currency": "USD"
    }
  }
}
JSON;

$ch = curl_init('https://graph.clientloop.com/');
curl_setopt_array($ch, [
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_POST => true,
  CURLOPT_HTTPHEADER => [
    'Content-Type: application/json',
    'Authorization: Bearer <api-key>',
  ],
  CURLOPT_POSTFIELDS => $body,
]);

$response = curl_exec($ch);
curl_close($ch);

$result = json_decode($response, true);

import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;

var body = """
{
  "query": "mutation CreatePaymentSession($input: CreatePaymentSessionInput!) { createPaymentSession(input: $input) { id orgId status amount currency callbackUrl successUrl link contactId contact { orgId id name givenName familyName email phone createdAt updatedAt } contactRef { contactId contactName contactFirstName contactLastName contactEmail contactPhone address { lines locality administrativeArea postalCode countryCode } } transactionRef invoiceIds invoiceRefs { orderId invoiceId invoiceNumber amount lines { num quantity price productId productSku productName productDescription productImageUrl } billingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } shippingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } } expirationDate paymentId createdAt updatedAt checkoutConfigurationId invoiceTotal brandLogoUrl brandName } }",
  "variables": {
    "input": {
      "orgId": "abc123",
      "amount": "100.00",
      "currency": "USD"
    }
  }
}
""";

var request = HttpRequest.newBuilder(URI.create("https://graph.clientloop.com/"))
    .header("Content-Type", "application/json")
    .header("Authorization", "Bearer <api-key>")
    .POST(HttpRequest.BodyPublishers.ofString(body))
    .build();

var response = HttpClient.newHttpClient()
    .send(request, HttpResponse.BodyHandlers.ofString());

System.out.println(response.body());

using System.Net.Http;
using System.Text;

var body = """
{
  "query": "mutation CreatePaymentSession($input: CreatePaymentSessionInput!) { createPaymentSession(input: $input) { id orgId status amount currency callbackUrl successUrl link contactId contact { orgId id name givenName familyName email phone createdAt updatedAt } contactRef { contactId contactName contactFirstName contactLastName contactEmail contactPhone address { lines locality administrativeArea postalCode countryCode } } transactionRef invoiceIds invoiceRefs { orderId invoiceId invoiceNumber amount lines { num quantity price productId productSku productName productDescription productImageUrl } billingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } shippingContact { contactId contactName contactFirstName contactLastName contactEmail contactPhone } } expirationDate paymentId createdAt updatedAt checkoutConfigurationId invoiceTotal brandLogoUrl brandName } }",
  "variables": {
    "input": {
      "orgId": "abc123",
      "amount": "100.00",
      "currency": "USD"
    }
  }
}
""";

using var client = new HttpClient();
using var content = new StringContent(body, Encoding.UTF8, "application/json");
client.DefaultRequestHeaders.Add("Authorization", "Bearer <api-key>");

var response = await client.PostAsync("https://graph.clientloop.com/", content);
var result = await response.Content.ReadAsStringAsync();