curl --request POST \
  --url https://testnet.walletkit.com/transactions/sign \
  --header 'Authorization: Bearer <token>' \
  --header 'Content-Type: application/json' \
  --data '
{
  "signer_wallet_address": "<string>",
  "unsigned_transaction": {
    "to": "<string>",
    "value": "<string>",
    "input": "<string>",
    "gasLimit": "<string>",
    "maxPriorityFeePerGas": "<string>",
    "maxFeePerGas": "<string>",
    "nonce": "<string>"
  },
  "developer_secret": "<string>",
  "user_pin": "<string>"
}
'

import requests

url = "https://testnet.walletkit.com/transactions/sign"

payload = {
    "signer_wallet_address": "<string>",
    "unsigned_transaction": {
        "to": "<string>",
        "value": "<string>",
        "input": "<string>",
        "gasLimit": "<string>",
        "maxPriorityFeePerGas": "<string>",
        "maxFeePerGas": "<string>",
        "nonce": "<string>"
    },
    "developer_secret": "<string>",
    "user_pin": "<string>"
}
headers = {
    "Authorization": "Bearer <token>",
    "Content-Type": "application/json"
}

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

print(response.text)

const options = {
  method: 'POST',
  headers: {Authorization: 'Bearer <token>', 'Content-Type': 'application/json'},
  body: JSON.stringify({
    signer_wallet_address: '<string>',
    unsigned_transaction: {
      to: '<string>',
      value: '<string>',
      input: '<string>',
      gasLimit: '<string>',
      maxPriorityFeePerGas: '<string>',
      maxFeePerGas: '<string>',
      nonce: '<string>'
    },
    developer_secret: '<string>',
    user_pin: '<string>'
  })
};

fetch('https://testnet.walletkit.com/transactions/sign', 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://testnet.walletkit.com/transactions/sign",
  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([
    'signer_wallet_address' => '<string>',
    'unsigned_transaction' => [
        'to' => '<string>',
        'value' => '<string>',
        'input' => '<string>',
        'gasLimit' => '<string>',
        'maxPriorityFeePerGas' => '<string>',
        'maxFeePerGas' => '<string>',
        'nonce' => '<string>'
    ],
    'developer_secret' => '<string>',
    'user_pin' => '<string>'
  ]),
  CURLOPT_HTTPHEADER => [
    "Authorization: Bearer <token>",
    "Content-Type: application/json"
  ],
]);

$response = curl_exec($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://testnet.walletkit.com/transactions/sign"

	payload := strings.NewReader("{\n  \"signer_wallet_address\": \"<string>\",\n  \"unsigned_transaction\": {\n    \"to\": \"<string>\",\n    \"value\": \"<string>\",\n    \"input\": \"<string>\",\n    \"gasLimit\": \"<string>\",\n    \"maxPriorityFeePerGas\": \"<string>\",\n    \"maxFeePerGas\": \"<string>\",\n    \"nonce\": \"<string>\"\n  },\n  \"developer_secret\": \"<string>\",\n  \"user_pin\": \"<string>\"\n}")

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

	req.Header.Add("Authorization", "Bearer <token>")
	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://testnet.walletkit.com/transactions/sign")
  .header("Authorization", "Bearer <token>")
  .header("Content-Type", "application/json")
  .body("{\n  \"signer_wallet_address\": \"<string>\",\n  \"unsigned_transaction\": {\n    \"to\": \"<string>\",\n    \"value\": \"<string>\",\n    \"input\": \"<string>\",\n    \"gasLimit\": \"<string>\",\n    \"maxPriorityFeePerGas\": \"<string>\",\n    \"maxFeePerGas\": \"<string>\",\n    \"nonce\": \"<string>\"\n  },\n  \"developer_secret\": \"<string>\",\n  \"user_pin\": \"<string>\"\n}")
  .asString();

require 'uri'
require 'net/http'

url = URI("https://testnet.walletkit.com/transactions/sign")

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

request = Net::HTTP::Post.new(url)
request["Authorization"] = 'Bearer <token>'
request["Content-Type"] = 'application/json'
request.body = "{\n  \"signer_wallet_address\": \"<string>\",\n  \"unsigned_transaction\": {\n    \"to\": \"<string>\",\n    \"value\": \"<string>\",\n    \"input\": \"<string>\",\n    \"gasLimit\": \"<string>\",\n    \"maxPriorityFeePerGas\": \"<string>\",\n    \"maxFeePerGas\": \"<string>\",\n    \"nonce\": \"<string>\"\n  },\n  \"developer_secret\": \"<string>\",\n  \"user_pin\": \"<string>\"\n}"

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

"<string>"

{
  "error": "<string>",
  "code": "<string>"
}

{
  "error": "<string>",
  "code": "<string>"
}

{
  "error": "<string>",
  "code": "<string>"
}

{
  "error": "<string>",
  "code": "<string>"
}