curl --request PUT \
  --url https://checkout.dintero.com/v1/admin/gateways/two \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "two": {
    "url": "https://sandbox.api.two.inc",
    "merchant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
  }
}
'

import requests

url = "https://checkout.dintero.com/v1/admin/gateways/two"

payload = { "two": {
        "url": "https://sandbox.api.two.inc",
        "merchant_id": "3c90c3cc-0d44-4b50-8888-8dd25736052a"
    } }
headers = {
    "x-api-key": "<api-key>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'PUT',
  headers: {'x-api-key': '<api-key>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    two: {
      url: 'https://sandbox.api.two.inc',
      merchant_id: '3c90c3cc-0d44-4b50-8888-8dd25736052a'
    }
  })
};

fetch('https://checkout.dintero.com/v1/admin/gateways/two', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

package main

import (
	"fmt"
	"strings"
	"net/http"
	"io"
)

func main() {

	url := "https://checkout.dintero.com/v1/admin/gateways/two"

	payload := strings.NewReader("{\n  \"two\": {\n    \"url\": \"https://sandbox.api.two.inc\",\n    \"merchant_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  }\n}")

	req, _ := http.NewRequest("PUT", 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.put("https://checkout.dintero.com/v1/admin/gateways/two")
  .header("x-api-key", "<api-key>")
  .header("Content-Type", "application/json")
  .body("{\n  \"two\": {\n    \"url\": \"https://sandbox.api.two.inc\",\n    \"merchant_id\": \"3c90c3cc-0d44-4b50-8888-8dd25736052a\"\n  }\n}")
  .asString();

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}

{
  "error": {
    "message": "<string>",
    "code": "<string>",
    "errors": [
      {}
    ]
  }
}