VrWREnbW

1private static JsonObject LimitOrder(String symbol, boolean side, String quantity, String price)
2    {
3        BigDecimal dPrice = new BigDecimal(price);
4        BigDecimal dQuantity = new BigDecimal(quantity);
5        String sSide = side?"buy":"sell";
6        String param  ="{"size":""+dQuantity.toString()+"","price":""+dPrice.toString()+"","side":""+sSide+"","product_id":""+symbol+"","post_only":true}";
7
8
9        try
10        {
11                String timestamp= Instant.now().getEpochSecond()+"";
12                String accessSign = getAccess(timestamp,"POST","/orders");
13                String apiKey = properties.getProperty("key");
14                String passphrase = properties.getProperty("passphrase");
15
16                URL url = new URL("https://" + properties.getProperty("host") + "/orders");
17                HttpURLConnection connection = (HttpURLConnection)url.openConnection();
18                connection.setDoOutput(true); // Triggers POST.
19                connection.setRequestProperty("Content-Type", "application/json; charset=UTF-8");
20                connection.setRequestProperty("CB-ACCESS-KEY", apiKey);
21                connection.setRequestProperty("CB-ACCESS-SIGN", accessSign);
22                connection.setRequestProperty("CB-ACCESS-PASSPHRASE", passphrase);
23                connection.setRequestProperty("CB-ACCESS-TIMESTAMP", timestamp);
24                connection.setRequestProperty("accept", "application/json");
25                connection.setConnectTimeout(5000);
26                connection.setReadTimeout(5000);
27
28        //      System.out.println("WRiting: " + param);
29              try (OutputStream output = connection.getOutputStream()) {
30                output.write(param.getBytes("UTF-8"));
31              }
32
33              String status = connection.getResponseMessage();
34                System.out.println("STATUS: "+status);
35
36                BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
37                String inputLine;
38                StringBuffer content = new StringBuffer();
39                while ((inputLine = in.readLine()) != null) {
40                    content.append(inputLine);
41                }
42                if(content.length()>0){
43                System.out.println(content);
44                }else{
45                     System.out.println("Empty Response");
46
47                }
48                in.close();
49
50                connection.disconnect();
51            }catch(Exception e) {
52                e.printStackTrace();
53            }
54        return null;
55    }
56	
57private static String getAccess(String timestamp, String method, String path) throws NoSuchAlgorithmException, InvalidKeyException {
58        String secret = properties.getProperty("secret");
59        String prehash = timestamp+method+path;
60
61        Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
62        byte[] secretDecoded = Base64.getDecoder().decode(secret);
63        SecretKeySpec secret_key = new SecretKeySpec(secretDecoded, "HmacSHA256");
64        sha256_HMAC.init(secret_key);
65
66        return Base64.getEncoder().encodeToString(sha256_HMAC.doFinal(prehash.getBytes()));
67    }