curl --request POST \
  --url http://localhost:8080/decide \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "payment_id": "pay_demo",
  "merchant_id": "pro_demo",
  "amount": 1000,
  "currency": "USD",
  "payment_method_type": "card",
  "payment_method_sub_type": "credit",
  "authentication_type": null,
  "capture_method": null,
  "mandate_type": null,
  "mandate_acceptance_type": null,
  "setup_future_usage": null,
  "transaction_initiator": null,
  "surcharge_amount": null,
  "business_country": null,
  "billing_country": "US",
  "business_label": null,
  "card": {
    "card_isin": "001234",
    "card_extended_bin": "00123456",
    "card_network": "Visa",
    "card_type": "credit",
    "card_issuer": null,
    "card_issuing_country_code": "US",
    "card_subtype": null,
    "card_discovery": null,
    "card_switch_provider": null
  },
  "customer_device_platform": null,
  "customer_device_type": null,
  "customer_device_display_size": null,
  "pay_later": null,
  "wallet": null,
  "upi": null,
  "voucher": null,
  "bank_redirect": null,
  "bank_debit": null,
  "bank_transfer": null,
  "real_time_payment": null,
  "gift_card": null,
  "card_redirect": null,
  "open_banking": null,
  "mobile_payment": null,
  "crypto": null,
  "reward": null,
  "network_token": null,
  "metadata": {
    "segment": "premium"
  },
  "country": null,
  "customer_id": null,
  "routing_config": {
    "algorithm_for": "payment",
    "elimination_enabled": null,
    "enable_multi_objective": null,
    "ranking_algorithm": null,
    "eligible_connectors": [
      {
        "gateway_name": "worldpay",
        "payment_merchant_connector_id": "mca_wp"
      },
      {
        "gateway_name": "checkout",
        "payment_merchant_connector_id": "mca_cko"
      }
    ],
    "preferred_connectors": null
  }
}
'

import requests

url = "http://localhost:8080/decide"

payload = {
    "payment_id": "pay_demo",
    "merchant_id": "pro_demo",
    "amount": 1000,
    "currency": "USD",
    "payment_method_type": "card",
    "payment_method_sub_type": "credit",
    "authentication_type": None,
    "capture_method": None,
    "mandate_type": None,
    "mandate_acceptance_type": None,
    "setup_future_usage": None,
    "transaction_initiator": None,
    "surcharge_amount": None,
    "business_country": None,
    "billing_country": "US",
    "business_label": None,
    "card": {
        "card_isin": "001234",
        "card_extended_bin": "00123456",
        "card_network": "Visa",
        "card_type": "credit",
        "card_issuer": None,
        "card_issuing_country_code": "US",
        "card_subtype": None,
        "card_discovery": None,
        "card_switch_provider": None
    },
    "customer_device_platform": None,
    "customer_device_type": None,
    "customer_device_display_size": None,
    "pay_later": None,
    "wallet": None,
    "upi": None,
    "voucher": None,
    "bank_redirect": None,
    "bank_debit": None,
    "bank_transfer": None,
    "real_time_payment": None,
    "gift_card": None,
    "card_redirect": None,
    "open_banking": None,
    "mobile_payment": None,
    "crypto": None,
    "reward": None,
    "network_token": None,
    "metadata": { "segment": "premium" },
    "country": None,
    "customer_id": None,
    "routing_config": {
        "algorithm_for": "payment",
        "elimination_enabled": None,
        "enable_multi_objective": None,
        "ranking_algorithm": None,
        "eligible_connectors": [
            {
                "gateway_name": "worldpay",
                "payment_merchant_connector_id": "mca_wp"
            },
            {
                "gateway_name": "checkout",
                "payment_merchant_connector_id": "mca_cko"
            }
        ],
        "preferred_connectors": None
    }
}
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({
    payment_id: 'pay_demo',
    merchant_id: 'pro_demo',
    amount: 1000,
    currency: 'USD',
    payment_method_type: 'card',
    payment_method_sub_type: 'credit',
    authentication_type: null,
    capture_method: null,
    mandate_type: null,
    mandate_acceptance_type: null,
    setup_future_usage: null,
    transaction_initiator: null,
    surcharge_amount: null,
    business_country: null,
    billing_country: 'US',
    business_label: null,
    card: {
      card_isin: '001234',
      card_extended_bin: '00123456',
      card_network: 'Visa',
      card_type: 'credit',
      card_issuer: null,
      card_issuing_country_code: 'US',
      card_subtype: null,
      card_discovery: null,
      card_switch_provider: null
    },
    customer_device_platform: null,
    customer_device_type: null,
    customer_device_display_size: null,
    pay_later: null,
    wallet: null,
    upi: null,
    voucher: null,
    bank_redirect: null,
    bank_debit: null,
    bank_transfer: null,
    real_time_payment: null,
    gift_card: null,
    card_redirect: null,
    open_banking: null,
    mobile_payment: null,
    crypto: null,
    reward: null,
    network_token: null,
    metadata: {segment: 'premium'},
    country: null,
    customer_id: null,
    routing_config: {
      algorithm_for: 'payment',
      elimination_enabled: null,
      enable_multi_objective: null,
      ranking_algorithm: null,
      eligible_connectors: [
        {gateway_name: 'worldpay', payment_merchant_connector_id: 'mca_wp'},
        {gateway_name: 'checkout', payment_merchant_connector_id: 'mca_cko'}
      ],
      preferred_connectors: null
    }
  })
};

fetch('http://localhost:8080/decide', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_PORT => "8080",
  CURLOPT_URL => "http://localhost:8080/decide",
  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([
    'payment_id' => 'pay_demo',
    'merchant_id' => 'pro_demo',
    'amount' => 1000,
    'currency' => 'USD',
    'payment_method_type' => 'card',
    'payment_method_sub_type' => 'credit',
    'authentication_type' => null,
    'capture_method' => null,
    'mandate_type' => null,
    'mandate_acceptance_type' => null,
    'setup_future_usage' => null,
    'transaction_initiator' => null,
    'surcharge_amount' => null,
    'business_country' => null,
    'billing_country' => 'US',
    'business_label' => null,
    'card' => [
        'card_isin' => '001234',
        'card_extended_bin' => '00123456',
        'card_network' => 'Visa',
        'card_type' => 'credit',
        'card_issuer' => null,
        'card_issuing_country_code' => 'US',
        'card_subtype' => null,
        'card_discovery' => null,
        'card_switch_provider' => null
    ],
    'customer_device_platform' => null,
    'customer_device_type' => null,
    'customer_device_display_size' => null,
    'pay_later' => null,
    'wallet' => null,
    'upi' => null,
    'voucher' => null,
    'bank_redirect' => null,
    'bank_debit' => null,
    'bank_transfer' => null,
    'real_time_payment' => null,
    'gift_card' => null,
    'card_redirect' => null,
    'open_banking' => null,
    'mobile_payment' => null,
    'crypto' => null,
    'reward' => null,
    'network_token' => null,
    'metadata' => [
        'segment' => 'premium'
    ],
    'country' => null,
    'customer_id' => null,
    'routing_config' => [
        'algorithm_for' => 'payment',
        'elimination_enabled' => null,
        'enable_multi_objective' => null,
        'ranking_algorithm' => null,
        'eligible_connectors' => [
                [
                                'gateway_name' => 'worldpay',
                                'payment_merchant_connector_id' => 'mca_wp'
                ],
                [
                                'gateway_name' => 'checkout',
                                'payment_merchant_connector_id' => 'mca_cko'
                ]
        ],
        'preferred_connectors' => null
    ]
  ]),
  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 := "http://localhost:8080/decide"

	payload := strings.NewReader("{\n  \"payment_id\": \"pay_demo\",\n  \"merchant_id\": \"pro_demo\",\n  \"amount\": 1000,\n  \"currency\": \"USD\",\n  \"payment_method_type\": \"card\",\n  \"payment_method_sub_type\": \"credit\",\n  \"authentication_type\": null,\n  \"capture_method\": null,\n  \"mandate_type\": null,\n  \"mandate_acceptance_type\": null,\n  \"setup_future_usage\": null,\n  \"transaction_initiator\": null,\n  \"surcharge_amount\": null,\n  \"business_country\": null,\n  \"billing_country\": \"US\",\n  \"business_label\": null,\n  \"card\": {\n    \"card_isin\": \"001234\",\n    \"card_extended_bin\": \"00123456\",\n    \"card_network\": \"Visa\",\n    \"card_type\": \"credit\",\n    \"card_issuer\": null,\n    \"card_issuing_country_code\": \"US\",\n    \"card_subtype\": null,\n    \"card_discovery\": null,\n    \"card_switch_provider\": null\n  },\n  \"customer_device_platform\": null,\n  \"customer_device_type\": null,\n  \"customer_device_display_size\": null,\n  \"pay_later\": null,\n  \"wallet\": null,\n  \"upi\": null,\n  \"voucher\": null,\n  \"bank_redirect\": null,\n  \"bank_debit\": null,\n  \"bank_transfer\": null,\n  \"real_time_payment\": null,\n  \"gift_card\": null,\n  \"card_redirect\": null,\n  \"open_banking\": null,\n  \"mobile_payment\": null,\n  \"crypto\": null,\n  \"reward\": null,\n  \"network_token\": null,\n  \"metadata\": {\n    \"segment\": \"premium\"\n  },\n  \"country\": null,\n  \"customer_id\": null,\n  \"routing_config\": {\n    \"algorithm_for\": \"payment\",\n    \"elimination_enabled\": null,\n    \"enable_multi_objective\": null,\n    \"ranking_algorithm\": null,\n    \"eligible_connectors\": [\n      {\n        \"gateway_name\": \"worldpay\",\n        \"payment_merchant_connector_id\": \"mca_wp\"\n      },\n      {\n        \"gateway_name\": \"checkout\",\n        \"payment_merchant_connector_id\": \"mca_cko\"\n      }\n    ],\n    \"preferred_connectors\": null\n  }\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("http://localhost:8080/decide")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"payment_id\": \"pay_demo\",\n  \"merchant_id\": \"pro_demo\",\n  \"amount\": 1000,\n  \"currency\": \"USD\",\n  \"payment_method_type\": \"card\",\n  \"payment_method_sub_type\": \"credit\",\n  \"authentication_type\": null,\n  \"capture_method\": null,\n  \"mandate_type\": null,\n  \"mandate_acceptance_type\": null,\n  \"setup_future_usage\": null,\n  \"transaction_initiator\": null,\n  \"surcharge_amount\": null,\n  \"business_country\": null,\n  \"billing_country\": \"US\",\n  \"business_label\": null,\n  \"card\": {\n    \"card_isin\": \"001234\",\n    \"card_extended_bin\": \"00123456\",\n    \"card_network\": \"Visa\",\n    \"card_type\": \"credit\",\n    \"card_issuer\": null,\n    \"card_issuing_country_code\": \"US\",\n    \"card_subtype\": null,\n    \"card_discovery\": null,\n    \"card_switch_provider\": null\n  },\n  \"customer_device_platform\": null,\n  \"customer_device_type\": null,\n  \"customer_device_display_size\": null,\n  \"pay_later\": null,\n  \"wallet\": null,\n  \"upi\": null,\n  \"voucher\": null,\n  \"bank_redirect\": null,\n  \"bank_debit\": null,\n  \"bank_transfer\": null,\n  \"real_time_payment\": null,\n  \"gift_card\": null,\n  \"card_redirect\": null,\n  \"open_banking\": null,\n  \"mobile_payment\": null,\n  \"crypto\": null,\n  \"reward\": null,\n  \"network_token\": null,\n  \"metadata\": {\n    \"segment\": \"premium\"\n  },\n  \"country\": null,\n  \"customer_id\": null,\n  \"routing_config\": {\n    \"algorithm_for\": \"payment\",\n    \"elimination_enabled\": null,\n    \"enable_multi_objective\": null,\n    \"ranking_algorithm\": null,\n    \"eligible_connectors\": [\n      {\n        \"gateway_name\": \"worldpay\",\n        \"payment_merchant_connector_id\": \"mca_wp\"\n      },\n      {\n        \"gateway_name\": \"checkout\",\n        \"payment_merchant_connector_id\": \"mca_cko\"\n      }\n    ],\n    \"preferred_connectors\": null\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("http://localhost:8080/decide")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"payment_id\": \"pay_demo\",\n  \"merchant_id\": \"pro_demo\",\n  \"amount\": 1000,\n  \"currency\": \"USD\",\n  \"payment_method_type\": \"card\",\n  \"payment_method_sub_type\": \"credit\",\n  \"authentication_type\": null,\n  \"capture_method\": null,\n  \"mandate_type\": null,\n  \"mandate_acceptance_type\": null,\n  \"setup_future_usage\": null,\n  \"transaction_initiator\": null,\n  \"surcharge_amount\": null,\n  \"business_country\": null,\n  \"billing_country\": \"US\",\n  \"business_label\": null,\n  \"card\": {\n    \"card_isin\": \"001234\",\n    \"card_extended_bin\": \"00123456\",\n    \"card_network\": \"Visa\",\n    \"card_type\": \"credit\",\n    \"card_issuer\": null,\n    \"card_issuing_country_code\": \"US\",\n    \"card_subtype\": null,\n    \"card_discovery\": null,\n    \"card_switch_provider\": null\n  },\n  \"customer_device_platform\": null,\n  \"customer_device_type\": null,\n  \"customer_device_display_size\": null,\n  \"pay_later\": null,\n  \"wallet\": null,\n  \"upi\": null,\n  \"voucher\": null,\n  \"bank_redirect\": null,\n  \"bank_debit\": null,\n  \"bank_transfer\": null,\n  \"real_time_payment\": null,\n  \"gift_card\": null,\n  \"card_redirect\": null,\n  \"open_banking\": null,\n  \"mobile_payment\": null,\n  \"crypto\": null,\n  \"reward\": null,\n  \"network_token\": null,\n  \"metadata\": {\n    \"segment\": \"premium\"\n  },\n  \"country\": null,\n  \"customer_id\": null,\n  \"routing_config\": {\n    \"algorithm_for\": \"payment\",\n    \"elimination_enabled\": null,\n    \"enable_multi_objective\": null,\n    \"ranking_algorithm\": null,\n    \"eligible_connectors\": [\n      {\n        \"gateway_name\": \"worldpay\",\n        \"payment_merchant_connector_id\": \"mca_wp\"\n      },\n      {\n        \"gateway_name\": \"checkout\",\n        \"payment_merchant_connector_id\": \"mca_cko\"\n      }\n    ],\n    \"preferred_connectors\": null\n  }\n}"

response = http.request(request)
puts response.read_body

{
  "evaluated_connectors": [
    {
      "gateway_name": "<string>",
      "payment_merchant_connector_id": "<string>"
    }
  ],
  "decision": {
    "outcome": "routed",
    "source": "<string>",
    "decision_id": "<string>"
  }
}