Delphi DLL

WooCommerce OAuth 1.0a “one-legged” Authentication

See more REST Examples

Demonstrates how to use OAuth 1.0a "one legged" authentication with Woo Commerce. Delphi DLL

uses
    Winapi.Windows, Winapi.Messages, System.SysUtils, System.Variants, System.Classes, Vcl.Graphics,
    Vcl.Controls, Vcl.Forms, Vcl.Dialogs, Vcl.StdCtrls, OAuth1, Rest;

...

procedure TForm1.Button1Click(Sender: TObject);
var
success: Boolean;
oauth1: HCkOAuth1;
rest: HCkRest;
bUseQueryParams: Boolean;
bTls: Boolean;
port: Integer;
bAutoReconnect: Boolean;
responseJson: PWideChar;

begin
success := False;

// Demonstrates how to do OAuth1 authentication for a Wordpress site using Woo Commerce.

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

// Prepare an OAuth 1.0 object for use with the Chilkat REST API.
oauth1 := CkOAuth1_Create();
CkOAuth1_putConsumerKey(oauth1,'WOO_COMMERCE_CONSUMER_KEY');
CkOAuth1_putConsumerSecret(oauth1,'WOO_COMMERCE_CONSUMER_SECRET');

// The signature method can be HMAC-SHA1 or HMAC-SHA256
CkOAuth1_putSignatureMethod(oauth1,'HMAC-SHA256');

// The OauthUrl property will need to be updated each time a request is sent.
// The domain here must match the domain passed to the Connect method (below).
// The domain must be exact.  For example, "www.your-wordpress-site.com" vs. "your-wordpress-site.com".
// One might work while the other does not..
CkOAuth1_putOauthUrl(oauth1,'http://your-wordpress-site.com/wc-api/v3/orders');

// The OAuthMethod property will be set automatically when the REST request is sent.
// Setting it here is not actually necessary.
CkOAuth1_putOauthMethod(oauth1,'GET');

// Generate an initial nonce so that Chilkat knows the desired size of the nonce.
success := CkOAuth1_GenNonce(oauth1,32);

rest := CkRest_Create();

// Tell the REST object to use the OAuth1 object for authentication.
// Also, indicate that the OAuth authentication parameters should be query parameters
// and not located within the Authorization header.
bUseQueryParams := True;
success := CkRest_SetAuthOAuth1(rest,oauth1,bUseQueryParams);

// Make the initial connection (without sending a request yet) to the WooCommerce endpoint at your Wordpress blog.
bTls := False;
port := 80;
bAutoReconnect := True;
success := CkRest_Connect(rest,'your-wordpress-site.com',port,bTls,bAutoReconnect);
if (success <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// Send a GET request to list orders.

// When the request is sent, the OAuth1 object's Timestamp and Nonce properties are automatically
// regenerated.  Also, the OAuth1 object's OauthMethod property is automatically set to the HTTP method
// used for the request (in this case it is "GET").
responseJson := CkRest__fullRequestNoBody(rest,'GET','/wc-api/v3/orders');
if (CkRest_getLastMethodSuccess(rest) <> True) then
  begin
    Memo1.Lines.Add(CkRest__lastErrorText(rest));
    Exit;
  end;

// When successful, the response status code will equal 200.
if (CkRest_getResponseStatusCode(rest) <> 200) then
  begin
    // Examine the request/response to see what happened.
    Memo1.Lines.Add('response status code = ' + IntToStr(CkRest_getResponseStatusCode(rest)));
    Memo1.Lines.Add('response status text = ' + CkRest__responseStatusText(rest));
    Memo1.Lines.Add('response header: ' + CkRest__responseHeader(rest));
    Memo1.Lines.Add('response body (if any): ' + responseJson);
    Memo1.Lines.Add('---');
    Memo1.Lines.Add('LastRequestStartLine: ' + CkRest__lastRequestStartLine(rest));
    Memo1.Lines.Add('LastRequestHeader: ' + CkRest__lastRequestHeader(rest));
    Exit;
  end;

Memo1.Lines.Add(responseJson);
Memo1.Lines.Add('Success.');

CkOAuth1_Dispose(oauth1);
CkRest_Dispose(rest);

end;