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(C# UWP/WinRT) Xero API through an HTTP ProxyThis example demonstrates connecting through an HTTP proxy w/ 2-legged OAuth for a Xero private application. This example requires Chilkat v9.5.0.64 or later
// This example requires Chilkat v9.5.0.64 or later // This sample code would typically be placed in a subroutine or function // where the rest object is passed by reference. // It does the OAuth1 setup and makes the initial connection. Chilkat.Rest rest = new Chilkat.Rest(); // Connect to the Xero server through an HTTP proxy, and then tell the REST object // to use the socket connection. Chilkat.Socket socket = new Chilkat.Socket(); // Set the HTTP proxy domain or IP address, and port. socket.HttpProxyHostname = "192.168.1.100"; socket.HttpProxyPort = 8088; // Connect through the HTTP proxy.. bool bTls = true; int port = 443; int maxWaitMs = 5000; bool success = await socket.ConnectAsync("api.xero.com",port,bTls,maxWaitMs); if (success != true) { Debug.WriteLine("Connect Failure Error Code: " + Convert.ToString(socket.ConnectFailReason)); Debug.WriteLine(socket.LastErrorText); return; } // Use the HTTP proxied TLS connection: success = rest.UseConnection(socket,true); if (success != true) { Debug.WriteLine(rest.LastErrorText); return; } // OK, we're connected. // The UseConnection method has an internal reference to the underlying/internal socket. // The application can does not need to keep its socket object in existence. // ----------------------------------------------------------------- // Now setup the OAuth1 authenticator.. string consumerKey = "XERO_PRIVATE_APP_KEY"; string consumerSecret = "XERO_PRIVATE_APP_SECRET"; // Let's get our private key from our PFX (password protected), or the PEM (unprotected). // You can decide which to use. Either is OK, although I would recommend keeping your // private keys in a PFX and not in an unprotected PEM. Chilkat.Pfx pfx = new Chilkat.Pfx(); success = pfx.LoadPfxFile("qa_data/certs/xero_private_app/public_privatekey.pfx","PFX_PASSWORD"); if (success != true) { Debug.WriteLine(pfx.LastErrorText); return; } Chilkat.PrivateKey privKeyFromPfx = pfx.GetPrivateKey(0); if (pfx.LastMethodSuccess != true) { Debug.WriteLine(pfx.LastErrorText); return; } // Or we can load from a PEM.. Chilkat.PrivateKey privKeyFromPem = new Chilkat.PrivateKey(); success = privKeyFromPem.LoadPemFile("qa_data/certs/xero_private_app/privatekey.pem"); if (success != true) { Debug.WriteLine(privKeyFromPem.LastErrorText); return; } // Note: There are many other means for loading a private key, including // from other formats and directly from memory (i.e. not file-based). Chilkat.OAuth1 oauth1 = new Chilkat.OAuth1(); oauth1.ConsumerKey = consumerKey; oauth1.ConsumerSecret = consumerSecret; oauth1.Token = consumerKey; oauth1.TokenSecret = consumerSecret; oauth1.SignatureMethod = "RSA-SHA1"; oauth1.SetRsaKey(privKeyFromPfx); // Install the OAuth1 authenticator. rest.SetAuthOAuth1(oauth1,false); Debug.WriteLine("OK, the Xero OAuth1 is initialized and the REST object is ready to make REST API calls.."); // ----------------------------------------------------------------- // Make a call to verify that OAuth1 through an HTTP proxy works.. // Get the full list of contacts. Chilkat.StringBuilder sbXml = new Chilkat.StringBuilder(); success = await rest.FullRequestNoBodySbAsync("GET","/api.xro/2.0/Contacts",sbXml); if (success != true) { Debug.WriteLine(rest.LastErrorText); return; } // A 200 response is expected for actual success. if (rest.ResponseStatusCode != 200) { Debug.WriteLine(sbXml.GetAsString()); return; } // Iterate over the contacts.. bool bAutoTrim = false; Chilkat.Xml xml = new Chilkat.Xml(); xml.LoadSb(sbXml,bAutoTrim); xml.SaveXml("qa_cache/xero_contacts.xml"); // How many records exist? int recordCount = xml.NumChildrenAt("Contacts"); Debug.WriteLine("numRecords = " + Convert.ToString(recordCount)); int i = 0; while (i < recordCount) { xml.I = i; Debug.WriteLine("ContactID: " + xml.GetChildContent("Contacts|Contact[i]|ContactID")); i = i + 1; } |
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