curl --request POST \
  --url https://api.syntage.com/entities \
  --header 'Content-Type: application/json' \
  --header 'X-API-Key: <api-key>' \
  --data '
{
  "type": "company",
  "name": "Syntage",
  "rfc": "XAXX010101000",
  "datasources": null,
  "identifiers": [
    {
      "country": "mx",
      "identifier": "rfc",
      "value": "XAXX010101000"
    }
  ],
  "metadata": {
    "sandbox": {}
  }
}
'

import requests

url = "https://api.syntage.com/entities"

payload = {
    "type": "company",
    "name": "Syntage",
    "rfc": "XAXX010101000",
    "datasources": None,
    "identifiers": [
        {
            "country": "mx",
            "identifier": "rfc",
            "value": "XAXX010101000"
        }
    ],
    "metadata": { "sandbox": {} }
}
headers = {
    "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-API-Key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    type: 'company',
    name: 'Syntage',
    rfc: 'XAXX010101000',
    datasources: null,
    identifiers: [{country: 'mx', identifier: 'rfc', value: 'XAXX010101000'}],
    metadata: {sandbox: {}}
  })
};

fetch('https://api.syntage.com/entities', 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.syntage.com/entities",
  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([
    'type' => 'company',
    'name' => 'Syntage',
    'rfc' => 'XAXX010101000',
    'datasources' => null,
    'identifiers' => [
        [
                'country' => 'mx',
                'identifier' => 'rfc',
                'value' => 'XAXX010101000'
        ]
    ],
    'metadata' => [
        'sandbox' => [
                
        ]
    ]
  ]),
  CURLOPT_HTTPHEADER => [
    "Content-Type: application/json",
    "X-API-Key: <api-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://api.syntage.com/entities"

	payload := strings.NewReader("{\n  \"type\": \"company\",\n  \"name\": \"Syntage\",\n  \"rfc\": \"XAXX010101000\",\n  \"datasources\": null,\n  \"identifiers\": [\n    {\n      \"country\": \"mx\",\n      \"identifier\": \"rfc\",\n      \"value\": \"XAXX010101000\"\n    }\n  ],\n  \"metadata\": {\n    \"sandbox\": {}\n  }\n}")

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

	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://api.syntage.com/entities")
  .header("X-API-Key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"type\": \"company\",\n  \"name\": \"Syntage\",\n  \"rfc\": \"XAXX010101000\",\n  \"datasources\": null,\n  \"identifiers\": [\n    {\n      \"country\": \"mx\",\n      \"identifier\": \"rfc\",\n      \"value\": \"XAXX010101000\"\n    }\n  ],\n  \"metadata\": {\n    \"sandbox\": {}\n  }\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://api.syntage.com/entities")

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

request = Net::HTTP::Post.new(url)
request["X-API-Key"] = '<api-key>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"type\": \"company\",\n  \"name\": \"Syntage\",\n  \"rfc\": \"XAXX010101000\",\n  \"datasources\": null,\n  \"identifiers\": [\n    {\n      \"country\": \"mx\",\n      \"identifier\": \"rfc\",\n      \"value\": \"XAXX010101000\"\n    }\n  ],\n  \"metadata\": {\n    \"sandbox\": {}\n  }\n}"

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

{
  "id": "5c7c3ac7-5c49-49f4-be0a-7824bfcf3060",
  "name": "Syntage",
  "@context": "/contexts/EntityAddedResponse",
  "rfc": "XAXX010101000",
  "onboardingUrl": "https://onboarding.syntage.com/onboarding/018f3f8f-4538-7bbb-b432-9e97e34a564a"
}

{
  "@context": "/contexts/ConstraintViolation",
  "@type": "ConstraintViolation",
  "hydra:title": "An error occurred",
  "hydra:description": "exampleField: This value should not be blank.",
  "violations": [
    {
      "propertyPath": "exampleField",
      "message": "This value should not be blank.",
      "code": "rfc_valid_no_name_on_file"
    }
  ]
}

{
  "message": "<string>"
}