curl --request POST \
  --url https://api-sandbox.argyle.com/partners/v2/users \
  --header 'Authorization: Basic <encoded-value>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "client": "39096494-45c8-4fd8-9454-3d1cb2d62db7",
  "first_name": "Jane",
  "last_name": "Doe",
  "ssn": "000-00-0000",
  "email": "jane@example.com",
  "phone_number": "+15555555555",
  "address": {
    "city": "New York",
    "line1": "123 Main St",
    "line2": null,
    "state": "NY",
    "country": "US",
    "postal_code": null
  },
  "birth_date": {
    "year": 1990,
    "month": 1,
    "day": 13
  },
  "external_id": null
}
'

import requests

url = "https://api-sandbox.argyle.com/partners/v2/users"

payload = {
    "client": "39096494-45c8-4fd8-9454-3d1cb2d62db7",
    "first_name": "Jane",
    "last_name": "Doe",
    "ssn": "000-00-0000",
    "email": "jane@example.com",
    "phone_number": "+15555555555",
    "address": {
        "city": "New York",
        "line1": "123 Main St",
        "line2": None,
        "state": "NY",
        "country": "US",
        "postal_code": None
    },
    "birth_date": {
        "year": 1990,
        "month": 1,
        "day": 13
    },
    "external_id": None
}
headers = {
    "Authorization": "Basic <encoded-value>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Basic <encoded-value>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    client: '39096494-45c8-4fd8-9454-3d1cb2d62db7',
    first_name: 'Jane',
    last_name: 'Doe',
    ssn: '000-00-0000',
    email: 'jane@example.com',
    phone_number: '+15555555555',
    address: {
      city: 'New York',
      line1: '123 Main St',
      line2: null,
      state: 'NY',
      country: 'US',
      postal_code: null
    },
    birth_date: {year: 1990, month: 1, day: 13},
    external_id: null
  })
};

fetch('https://api-sandbox.argyle.com/partners/v2/users', 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://api-sandbox.argyle.com/partners/v2/users",
  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([
    'client' => '39096494-45c8-4fd8-9454-3d1cb2d62db7',
    'first_name' => 'Jane',
    'last_name' => 'Doe',
    'ssn' => '000-00-0000',
    'email' => 'jane@example.com',
    'phone_number' => '+15555555555',
    'address' => [
        'city' => 'New York',
        'line1' => '123 Main St',
        'line2' => null,
        'state' => 'NY',
        'country' => 'US',
        'postal_code' => null
    ],
    'birth_date' => [
        'year' => 1990,
        'month' => 1,
        'day' => 13
    ],
    'external_id' => null
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Basic <encoded-value>",
    "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 := "https://api-sandbox.argyle.com/partners/v2/users"

	payload := strings.NewReader("{\n  \"client\": \"39096494-45c8-4fd8-9454-3d1cb2d62db7\",\n  \"first_name\": \"Jane\",\n  \"last_name\": \"Doe\",\n  \"ssn\": \"000-00-0000\",\n  \"email\": \"jane@example.com\",\n  \"phone_number\": \"+15555555555\",\n  \"address\": {\n    \"city\": \"New York\",\n    \"line1\": \"123 Main St\",\n    \"line2\": null,\n    \"state\": \"NY\",\n    \"country\": \"US\",\n    \"postal_code\": null\n  },\n  \"birth_date\": {\n    \"year\": 1990,\n    \"month\": 1,\n    \"day\": 13\n  },\n  \"external_id\": null\n}")

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

	req.Header.Add("Authorization", "Basic <encoded-value>")
	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://api-sandbox.argyle.com/partners/v2/users")
  .header("Authorization", "Basic <encoded-value>")
  .header("Content-Type", "application/json")
  .body("{\n  \"client\": \"39096494-45c8-4fd8-9454-3d1cb2d62db7\",\n  \"first_name\": \"Jane\",\n  \"last_name\": \"Doe\",\n  \"ssn\": \"000-00-0000\",\n  \"email\": \"jane@example.com\",\n  \"phone_number\": \"+15555555555\",\n  \"address\": {\n    \"city\": \"New York\",\n    \"line1\": \"123 Main St\",\n    \"line2\": null,\n    \"state\": \"NY\",\n    \"country\": \"US\",\n    \"postal_code\": null\n  },\n  \"birth_date\": {\n    \"year\": 1990,\n    \"month\": 1,\n    \"day\": 13\n  },\n  \"external_id\": null\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api-sandbox.argyle.com/partners/v2/users")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Basic <encoded-value>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"client\": \"39096494-45c8-4fd8-9454-3d1cb2d62db7\",\n  \"first_name\": \"Jane\",\n  \"last_name\": \"Doe\",\n  \"ssn\": \"000-00-0000\",\n  \"email\": \"jane@example.com\",\n  \"phone_number\": \"+15555555555\",\n  \"address\": {\n    \"city\": \"New York\",\n    \"line1\": \"123 Main St\",\n    \"line2\": null,\n    \"state\": \"NY\",\n    \"country\": \"US\",\n    \"postal_code\": null\n  },\n  \"birth_date\": {\n    \"year\": 1990,\n    \"month\": 1,\n    \"day\": 13\n  },\n  \"external_id\": null\n}"

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

{
  "user_token": "<SECRET>",
  "id": "7a614711-066f-4b6b-b319-4c6236b5acc1"
}