(.NET Core C#) hotelbeds.com REST API Authentication

Demonstrates how to calculate the X-Signature header and add to requests sent to api.test.hotelbeds.com.

For more information, see https://developer.hotelbeds.com/documentation/getting-started/

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// This example requires the Chilkat API to have been previously unlocked.
// See Global Unlock Sample for sample code.

// This example duplicates the following CURL statement provided in the hotelbeds.com "Getting Started"
// developer documentation:

// #!/bin/bash 
// apiKey="yourApiKey"
// secret="yourSecret"
// curl -i \
//   -X GET \
//   -H 'Accept:application/json' \
//   -H 'Api-key:'$apiKey'' \
//   -H 'X-Signature:'$(echo -n ${apiKey}${secret}$(date +%s)|sha256sum|awk '{ print $1}')'' \
//   https://api.test.hotelbeds.com/hotel-api/1.0/status

bool success;

// The "date + %s" command emits a UNIX date/time number such as 1605548842
// We need to concatenate the apiKey, secret, and current date/time in UNIX (numeric) time format.
Chilkat.CkDateTime dt = new Chilkat.CkDateTime();
dt.SetFromCurrentSystemTime();
// Get the UNIX time string in the GMT timezone.
bool bLocalTime = false;
string unixTimeStr = dt.GetAsUnixTimeStr(bLocalTime);
Debug.WriteLine(unixTimeStr);

// Use your own API key and secret.  (These are not valid values)
string apiKey = "227b20a2cb705e45f3b0a0944672dc07";
string secret = "54dc7ba9e2";

Chilkat.StringBuilder sb = new Chilkat.StringBuilder();
sb.Append(apiKey);
sb.Append(secret);
sb.Append(unixTimeStr);

Chilkat.Crypt2 crypt = new Chilkat.Crypt2();
crypt.HashAlgorithm = "sha256";
crypt.EncodingMode = "hexlower";
string signature = crypt.HashStringENC(sb.GetAsString());

Debug.WriteLine(signature);

Chilkat.Http http = new Chilkat.Http();

http.SetRequestHeader("Accept","application/json");
http.SetRequestHeader("Api-key",apiKey);
http.SetRequestHeader("X-Signature",signature);

string jsonResponse = http.QuickGetStr("https://api.test.hotelbeds.com/hotel-api/1.0/status");
Debug.WriteLine(jsonResponse);
Debug.WriteLine(Convert.ToString(http.LastStatus));

// Sample output:  

// 1605549542
// 2146aefb36e7331b3b29aafd7638398ca22e689573224f1a71274d60bd201ec2
// {"auditData":{"timestamp":"2020-11-16 18:59:02.430"},"status":"OK"}
// 200