const options = {method: 'GET'};

fetch('https://core.prod.gnosispay.com/user-api/auth/siwe/{address}', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

curl --request GET \
  --url https://core.prod.gnosispay.com/user-api/auth/siwe/{address}

import requests

url = "https://core.prod.gnosispay.com/user-api/auth/siwe/{address}"

response = requests.get(url)

print(response.text)

package main

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

func main() {

	url := "https://core.prod.gnosispay.com/user-api/auth/siwe/{address}"

	req, _ := http.NewRequest("GET", url, nil)

	res, _ := http.DefaultClient.Do(req)

	defer res.Body.Close()
	body, _ := io.ReadAll(res.Body)

	fmt.Println(string(body))

}

HttpResponse<String> response = Unirest.get("https://core.prod.gnosispay.com/user-api/auth/siwe/{address}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://core.prod.gnosispay.com/user-api/auth/siwe/{address}")

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

request = Net::HTTP::Get.new(url)

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

{
  "success": true,
  "message": "<string>"
}

{
  "kind": "validation",
  "success": false,
  "error": {
    "name": "ValidationError",
    "message": "<string>"
  }
}

{
  "success": false,
  "error": "<string>"
}

{
  "success": false,
  "error": "<string>"
}