curl --request POST \
  --url https://sandbox-api.polygon.technology/v0.11/counterparties \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --header 'Idempotency-Key: <idempotency-key>' \
  --data '
{
  "customerId": "cst_vfa0nxw6zvyws9g237jrxn4y7k",
  "name": "Alice Smith",
  "entityType": "individual",
  "address": {
    "line1": "500 Market Street",
    "city": "San Francisco",
    "state": "CA",
    "country": "US",
    "zipCode": "94105"
  },
  "email": "alice@example.com",
  "phone": "+14155550100",
  "nationality": "US"
}
'

import requests

url = "https://sandbox-api.polygon.technology/v0.11/counterparties"

payload = {
    "customerId": "cst_vfa0nxw6zvyws9g237jrxn4y7k",
    "name": "Alice Smith",
    "entityType": "individual",
    "address": {
        "line1": "500 Market Street",
        "city": "San Francisco",
        "state": "CA",
        "country": "US",
        "zipCode": "94105"
    },
    "email": "alice@example.com",
    "phone": "+14155550100",
    "nationality": "US"
}
headers = {
    "Idempotency-Key": "<idempotency-key>",
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'Idempotency-Key': '<idempotency-key>',
    Authorization: 'Bearer <token>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    customerId: 'cst_vfa0nxw6zvyws9g237jrxn4y7k',
    name: 'Alice Smith',
    entityType: 'individual',
    address: {
      line1: '500 Market Street',
      city: 'San Francisco',
      state: 'CA',
      country: 'US',
      zipCode: '94105'
    },
    email: 'alice@example.com',
    phone: '+14155550100',
    nationality: 'US'
  })
};

fetch('https://sandbox-api.polygon.technology/v0.11/counterparties', 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://sandbox-api.polygon.technology/v0.11/counterparties",
  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([
    'customerId' => 'cst_vfa0nxw6zvyws9g237jrxn4y7k',
    'name' => 'Alice Smith',
    'entityType' => 'individual',
    'address' => [
        'line1' => '500 Market Street',
        'city' => 'San Francisco',
        'state' => 'CA',
        'country' => 'US',
        'zipCode' => '94105'
    ],
    'email' => 'alice@example.com',
    'phone' => '+14155550100',
    'nationality' => 'US'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json",
    "Idempotency-Key: <idempotency-key>"
  ],
]);

$response = curl_exec($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://sandbox-api.polygon.technology/v0.11/counterparties"

	payload := strings.NewReader("{\n  \"customerId\": \"cst_vfa0nxw6zvyws9g237jrxn4y7k\",\n  \"name\": \"Alice Smith\",\n  \"entityType\": \"individual\",\n  \"address\": {\n    \"line1\": \"500 Market Street\",\n    \"city\": \"San Francisco\",\n    \"state\": \"CA\",\n    \"country\": \"US\",\n    \"zipCode\": \"94105\"\n  },\n  \"email\": \"alice@example.com\",\n  \"phone\": \"+14155550100\",\n  \"nationality\": \"US\"\n}")

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

	req.Header.Add("Idempotency-Key", "<idempotency-key>")
	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://sandbox-api.polygon.technology/v0.11/counterparties")
  .header("Idempotency-Key", "<idempotency-key>")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"customerId\": \"cst_vfa0nxw6zvyws9g237jrxn4y7k\",\n  \"name\": \"Alice Smith\",\n  \"entityType\": \"individual\",\n  \"address\": {\n    \"line1\": \"500 Market Street\",\n    \"city\": \"San Francisco\",\n    \"state\": \"CA\",\n    \"country\": \"US\",\n    \"zipCode\": \"94105\"\n  },\n  \"email\": \"alice@example.com\",\n  \"phone\": \"+14155550100\",\n  \"nationality\": \"US\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox-api.polygon.technology/v0.11/counterparties")

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

request = Net::HTTP::Post.new(url)
request["Idempotency-Key"] = '<idempotency-key>'
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"customerId\": \"cst_vfa0nxw6zvyws9g237jrxn4y7k\",\n  \"name\": \"Alice Smith\",\n  \"entityType\": \"individual\",\n  \"address\": {\n    \"line1\": \"500 Market Street\",\n    \"city\": \"San Francisco\",\n    \"state\": \"CA\",\n    \"country\": \"US\",\n    \"zipCode\": \"94105\"\n  },\n  \"email\": \"alice@example.com\",\n  \"phone\": \"+14155550100\",\n  \"nationality\": \"US\"\n}"

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

{
  "address": {
    "line1": "<string>",
    "line2": "<string>",
    "city": "<string>",
    "state": "<string>",
    "country": "<string>",
    "zipCode": "<string>"
  },
  "id": "<string>",
  "object": "counterparty",
  "customerId": "<string>",
  "rejectionReason": "<string>",
  "name": "<string>",
  "email": "<string>",
  "phone": "<string>",
  "taxId": "<string>",
  "dateOfBirth": "2023-12-25",
  "nationality": "<string>",
  "metadata": {},
  "createdAt": "2023-11-07T05:31:56Z",
  "updatedAt": "2023-11-07T05:31:56Z"
}