curl --request POST \
  --url https://sandbox-api.va.meridianpay.com/v1/auth/users \
  --header 'Content-Type: application/json' \
  --header 'X-Meridian-Api-Key: <x-meridian-api-key>' \
  --header 'X-Meridian-Program-Id: <x-meridian-program-id>' \
  --header 'X-Meridian-Signature: <api-key>' \
  --header 'X-Meridian-Timestamp: <x-meridian-timestamp>' \
  --data '
{
  "externalId": "partner-user-123",
  "person": {
    "firstName": "Jane",
    "lastName": "Doe",
    "contactPhone": "+15551234567",
    "contactEmail": "jane.doe@example.com",
    "dateOfBirth": "1990-01-15"
  }
}
'

import requests

url = "https://sandbox-api.va.meridianpay.com/v1/auth/users"

payload = {
    "externalId": "partner-user-123",
    "person": {
        "firstName": "Jane",
        "lastName": "Doe",
        "contactPhone": "+15551234567",
        "contactEmail": "jane.doe@example.com",
        "dateOfBirth": "1990-01-15"
    }
}
headers = {
    "X-Meridian-Api-Key": "<x-meridian-api-key>",
    "X-Meridian-Timestamp": "<x-meridian-timestamp>",
    "X-Meridian-Program-Id": "<x-meridian-program-id>",
    "X-Meridian-Signature": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'X-Meridian-Api-Key': '<x-meridian-api-key>',
    'X-Meridian-Timestamp': '<x-meridian-timestamp>',
    'X-Meridian-Program-Id': '<x-meridian-program-id>',
    'X-Meridian-Signature': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    externalId: 'partner-user-123',
    person: {
      firstName: 'Jane',
      lastName: 'Doe',
      contactPhone: '+15551234567',
      contactEmail: 'jane.doe@example.com',
      dateOfBirth: '1990-01-15'
    }
  })
};

fetch('https://sandbox-api.va.meridianpay.com/v1/auth/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://sandbox-api.va.meridianpay.com/v1/auth/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([
    'externalId' => 'partner-user-123',
    'person' => [
        'firstName' => 'Jane',
        'lastName' => 'Doe',
        'contactPhone' => '+15551234567',
        'contactEmail' => 'jane.doe@example.com',
        'dateOfBirth' => '1990-01-15'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-Meridian-Api-Key: <x-meridian-api-key>",
    "X-Meridian-Program-Id: <x-meridian-program-id>",
    "X-Meridian-Signature: <api-key>",
    "X-Meridian-Timestamp: <x-meridian-timestamp>"
  ],
]);

$response = curl_exec($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.va.meridianpay.com/v1/auth/users"

	payload := strings.NewReader("{\n  \"externalId\": \"partner-user-123\",\n  \"person\": {\n    \"firstName\": \"Jane\",\n    \"lastName\": \"Doe\",\n    \"contactPhone\": \"+15551234567\",\n    \"contactEmail\": \"jane.doe@example.com\",\n    \"dateOfBirth\": \"1990-01-15\"\n  }\n}")

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

	req.Header.Add("X-Meridian-Api-Key", "<x-meridian-api-key>")
	req.Header.Add("X-Meridian-Timestamp", "<x-meridian-timestamp>")
	req.Header.Add("X-Meridian-Program-Id", "<x-meridian-program-id>")
	req.Header.Add("X-Meridian-Signature", "<api-key>")
	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.va.meridianpay.com/v1/auth/users")
  .header("X-Meridian-Api-Key", "<x-meridian-api-key>")
  .header("X-Meridian-Timestamp", "<x-meridian-timestamp>")
  .header("X-Meridian-Program-Id", "<x-meridian-program-id>")
  .header("X-Meridian-Signature", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"externalId\": \"partner-user-123\",\n  \"person\": {\n    \"firstName\": \"Jane\",\n    \"lastName\": \"Doe\",\n    \"contactPhone\": \"+15551234567\",\n    \"contactEmail\": \"jane.doe@example.com\",\n    \"dateOfBirth\": \"1990-01-15\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://sandbox-api.va.meridianpay.com/v1/auth/users")

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

request = Net::HTTP::Post.new(url)
request["X-Meridian-Api-Key"] = '<x-meridian-api-key>'
request["X-Meridian-Timestamp"] = '<x-meridian-timestamp>'
request["X-Meridian-Program-Id"] = '<x-meridian-program-id>'
request["X-Meridian-Signature"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"externalId\": \"partner-user-123\",\n  \"person\": {\n    \"firstName\": \"Jane\",\n    \"lastName\": \"Doe\",\n    \"contactPhone\": \"+15551234567\",\n    \"contactEmail\": \"jane.doe@example.com\",\n    \"dateOfBirth\": \"1990-01-15\"\n  }\n}"

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

{
  "userId": "user_123"
}

{
  "message": "<string>",
  "validationErrors": [
    {
      "fieldRef": "<string>",
      "type": "InvalidFormat",
      "message": "<string>"
    }
  ],
  "errorCode": "UNAUTHORIZED"
}

{
  "message": "<string>",
  "validationErrors": [
    {
      "fieldRef": "<string>",
      "type": "InvalidFormat",
      "message": "<string>"
    }
  ],
  "errorCode": "UNAUTHORIZED"
}

{
  "message": "<string>",
  "validationErrors": [
    {
      "fieldRef": "<string>",
      "type": "InvalidFormat",
      "message": "<string>"
    }
  ],
  "errorCode": "UNAUTHORIZED"
}

{
  "message": "<string>",
  "validationErrors": [
    {
      "fieldRef": "<string>",
      "type": "InvalidFormat",
      "message": "<string>"
    }
  ],
  "errorCode": "UNAUTHORIZED"
}