.NET (Core and Framework)

I would like to create a c # wrap to call the API of the exchange btc-aplha as it implements the DCY currency which is the only one of an Italian project. My difficulty is understanding the rules for implementing key based authorization. Documentation is very sparse

https://docs.dex-trade.com/#api-Private_API-Create_Signature

I would like to create a wrap to call the API of the exchange btc-aplha as it implements the DCY currency which is the only one of an Italian project. My difficulty is understanding the rules for implementing key based authorization. The documentation is very sparse and I don't understand the examples which are in phyton or node.js

https://btc-alpha.github.io/api-docs/?javascript#authorization

Can anyone help me to implement the following methods I took from the node.js example

<pre>const hmacSha256 = require('crypto-js/hmac-sha256'); // sha256 hash. or use you favorite u like
const request = require('request'); // for http requests. or use you favorite u like

const BASE_URL = 'https://btc-alpha.com/api/v1';
const API_KEY = '0000-0000...';
const SECRET = 'Z%2........';

//Serialize for singing only. Can be used in request body if u like urlencoded form format instead of json
function serializePayload(payload) {
  return Object
    .keys(payload) // get keys of payload object
    .sort() // sort keys
    .map((key) => key + "=" + encodeURIComponent(payload[key])) // each value should be url encoded. the most sensitive part for sign checking
    .join('&'); // to sting, separate with ampersand
}

// Generates auth headers
function getAuthHeaders(payload) {
  // get SHA256 of <API_KEY><sorted urlencoded payload string><SECRET>
  const sign = hmacSha256(API_KEY + serializePayload(payload), SECRET).toString();

  return {
    'X-KEY': API_KEY,
    'X-SIGN': sign,
    'X-NONCE': Date.now()
  };
}

function getWallets(callback) {
  payload = {};

  const options = {
    method: 'get',
    url: `${BASE_URL}/wallets/`,
    headers: getAuthHeaders(payload)
  };

  request(options, callback);
}

function createOrder(order, callback) {
  const options = {
    method: 'post',
    url: `${BASE_URL}/order/`,
    headers: getAuthHeaders(order),
    form: order, // API accepts urlencoded form or json. Use appropriate headers!
  };

  request(options, callback);
}

// test
getWallets((error, response, body) => {
  console.log('error', error);
  console.log('body', body);
});

const order = {
  type: 'buy',
  pair: 'BTC_USD',
  amount: '0.0001',
  price: '0.1'
};

createOrder(order, (error, response, body) => {
  // get json, etc
  console.log('error', error);
  console.log('body', body);
});