curl --request POST \
  --url https://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --header 'x-site-context: <x-site-context>' \
  --data '
{
  "user": {
    "name": {
      "first": "Pat",
      "middle": "E",
      "last": "Kake"
    },
    "phone": [
      {
        "number": "555-123-4567",
        "countryCode": "+91",
        "extenstion": "x-6789",
        "kind": "Mobile"
      }
    ],
    "email": "test@mail.com",
    "extra": {}
  },
  "provider": {
    "username": "user101",
    "password": "ABC123"
  }
}
'

import requests

url = "https://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest"

payload = {
    "user": {
        "name": {
            "first": "Pat",
            "middle": "E",
            "last": "Kake"
        },
        "phone": [
            {
                "number": "555-123-4567",
                "countryCode": "+91",
                "extenstion": "x-6789",
                "kind": "Mobile"
            }
        ],
        "email": "test@mail.com",
        "extra": {}
    },
    "provider": {
        "username": "user101",
        "password": "ABC123"
    }
}
headers = {
    "x-site-context": "<x-site-context>",
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {
    'x-site-context': '<x-site-context>',
    'x-api-key': '<api-key>',
    'Content-Type': 'application/json'
  },
  body: JSON.stringify({
    user: {
      name: {first: 'Pat', middle: 'E', last: 'Kake'},
      phone: [
        {
          number: '555-123-4567',
          countryCode: '+91',
          extenstion: 'x-6789',
          kind: 'Mobile'
        }
      ],
      email: 'test@mail.com',
      extra: {}
    },
    provider: {username: 'user101', password: 'ABC123'}
  })
};

fetch('https://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest', 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://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest",
  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([
    'user' => [
        'name' => [
                'first' => 'Pat',
                'middle' => 'E',
                'last' => 'Kake'
        ],
        'phone' => [
                [
                                'number' => '555-123-4567',
                                'countryCode' => '+91',
                                'extenstion' => 'x-6789',
                                'kind' => 'Mobile'
                ]
        ],
        'email' => 'test@mail.com',
        'extra' => [
                
        ]
    ],
    'provider' => [
        'username' => 'user101',
        'password' => 'ABC123'
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "x-api-key: <api-key>",
    "x-site-context: <x-site-context>"
  ],
]);

$response = curl_exec($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://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest"

	payload := strings.NewReader("{\n  \"user\": {\n    \"name\": {\n      \"first\": \"Pat\",\n      \"middle\": \"E\",\n      \"last\": \"Kake\"\n    },\n    \"phone\": [\n      {\n        \"number\": \"555-123-4567\",\n        \"countryCode\": \"+91\",\n        \"extenstion\": \"x-6789\",\n        \"kind\": \"Mobile\"\n      }\n    ],\n    \"email\": \"test@mail.com\",\n    \"extra\": {}\n  },\n  \"provider\": {\n    \"username\": \"user101\",\n    \"password\": \"ABC123\"\n  }\n}")

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

	req.Header.Add("x-site-context", "<x-site-context>")
	req.Header.Add("x-api-key", "<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://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest")
  .header("x-site-context", "<x-site-context>")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"user\": {\n    \"name\": {\n      \"first\": \"Pat\",\n      \"middle\": \"E\",\n      \"last\": \"Kake\"\n    },\n    \"phone\": [\n      {\n        \"number\": \"555-123-4567\",\n        \"countryCode\": \"+91\",\n        \"extenstion\": \"x-6789\",\n        \"kind\": \"Mobile\"\n      }\n    ],\n    \"email\": \"test@mail.com\",\n    \"extra\": {}\n  },\n  \"provider\": {\n    \"username\": \"user101\",\n    \"password\": \"ABC123\"\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://{customerDomain}.fabric.zone/api-commerceIdentity/user/guest")

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

request = Net::HTTP::Post.new(url)
request["x-site-context"] = '<x-site-context>'
request["x-api-key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"user\": {\n    \"name\": {\n      \"first\": \"Pat\",\n      \"middle\": \"E\",\n      \"last\": \"Kake\"\n    },\n    \"phone\": [\n      {\n        \"number\": \"555-123-4567\",\n        \"countryCode\": \"+91\",\n        \"extenstion\": \"x-6789\",\n        \"kind\": \"Mobile\"\n      }\n    ],\n    \"email\": \"test@mail.com\",\n    \"extra\": {}\n  },\n  \"provider\": {\n    \"username\": \"user101\",\n    \"password\": \"ABC123\"\n  }\n}"

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

{
  "_id": "596f7557696e2d4d617a616c546f7621",
  "userId": "6169b2d892a5f30009d76480",
  "roles": "customer",
  "name": "Pat E Kake",
  "account": "xxxxxcxxxxxxxxxxxxxx",
  "userType": "customer",
  "accessToken": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6IjYxZjIyMTU4...",
  "refreshToken": "eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJpZCI6IjYxZjIyMTU4..."
}

{
  "error": "BAD_REQUEST",
  "code": "400",
  "message": "BAD_REQUEST"
}

{
  "error": "INTERNAL_SERVER_ERROR",
  "code": "500",
  "message": "Internal server error"
}