curl --request PATCH \
  --url https://{apiBaseUrl}/v2/{sessionId}/loyalty/login \
  --header 'Content-Type: application/json' \
  --data '
{
  "payload": "ewogICAgImlkX3R...I3YWIiCn0="
}
'

const url = 'https://{apiBaseUrl}/v2/{sessionId}/loyalty/login';
const options = {
  method: 'PATCH',
  headers: {'Content-Type': 'application/json'},
  body: JSON.stringify({payload: 'ewogICAgImlkX3R...I3YWIiCn0='})
};

fetch(url, options)
  .then(res => res.json())
  .then(json => console.log(json))
  .catch(err => console.error(err));

import requests

url = "https://{apiBaseUrl}/v2/{sessionId}/loyalty/login"

payload = { "payload": "ewogICAgImlkX3R...I3YWIiCn0=" }
headers = {"Content-Type": "application/json"}

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

print(response.text)

<?php

$curl = curl_init();

curl_setopt_array($curl, [
  CURLOPT_URL => "https://{apiBaseUrl}/v2/{sessionId}/loyalty/login",
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "PATCH",
  CURLOPT_POSTFIELDS => json_encode([
    'payload' => 'ewogICAgImlkX3R...I3YWIiCn0='
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}

using RestSharp;


var options = new RestClientOptions("https://{apiBaseUrl}/v2/{sessionId}/loyalty/login");
var client = new RestClient(options);
var request = new RestRequest("");
request.AddJsonBody("{\n  \"payload\": \"ewogICAgImlkX3R...I3YWIiCn0=\"\n}", false);
var response = await client.PatchAsync(request);

Console.WriteLine("{0}", response.Content);

HttpResponse<String> response = Unirest.patch("https://{apiBaseUrl}/v2/{sessionId}/loyalty/login")
  .header("Content-Type", "application/json")
  .body("{\n  \"payload\": \"ewogICAgImlkX3R...I3YWIiCn0=\"\n}")
  .asString();

{
  "memberId": "123",
  "title": "Mr.",
  "firstName": "John",
  "lastName": "Doe",
  "address": {
    "addressLines": [
      "66 rue des Archives"
    ],
    "postalCode": "75001",
    "cityName": "Paris",
    "countryCode": "FR"
  },
  "emailAddress": "j.doe@loyalty.com",
  "phone": {
    "number": "060606060606",
    "phoneCode": 33,
    "countryCode": "FR",
    "internationalNumber": "003360606060606"
  },
  "level": "Platinum",
  "levelNumber": 3,
  "points": 1500
}

{
  "code": "InvalidSessionId"
}

{
  "code": "LoyaltyProviderTokenExpired",
  "message": "The loyalty provider token has expired"
}

{
  "code": "LoyaltyProviderGenericError",
  "message": "An error occured while calling the loyalty provider"
}

{
  "code": "LoyaltyProviderGenericError",
  "message": "An error occured while calling the loyalty provider"
}

{
  "code": "LoyaltyProviderGenericError",
  "message": "An error occured while calling the loyalty provider"
}