[Joel]

Hi everyone!

I've been tinkering around with XML-RPC and WebServices attempting to create a rudimentary blog-posting app that posts to blogger.com. I've correctly set up all various WS calls such that I can successfully use their blogger.getUsersBlogs and blogger.getUserInfo method from the Blogger API. Unfortunately, I can't seem to get either the blogger.newPost or blogger.editPost method to work. It seems to crash at CFDictionaryRef resultDict = WSMethodInvocationInvoke(request); which makes me think I have the parameters set up incorrectly, but I've triple checked them and they're right. Anyone have any ideas? Here's what I've got:

Code:
void newPost(CFStringRef content)
{
     WSMethodInvocationRef request;
     CFStringRef blogAddress = CFSTR("http://plant.blogger.com/api/RPC2");
     CFStringRef methodName = CFSTR("blogger.newPost");
     CFStringRef protocol = kWSXMLRPCProtocol;
     CFStringRef param1key = CFSTR("appkey");
     CFStringRef param1value = CFSTR("<insertactualappkeyhere>");
     CFStringRef param2key = CFSTR("blogid");
     CFStringRef param2value = CFSTR("<insertactualblogidhere>");
     CFStringRef param3key = CFSTR("username");
     CFStringRef param3value = CFSTR("<insertusernamehere>");
     CFStringRef param4key = CFSTR("password");
     CFStringRef param4value = CFSTR("<insertpasswordhere>");
     CFStringRef param5key = CFSTR("content");
     CFStringRef param5value = content;
     CFStringRef param6key = CFSTR("publish");
     CFBooleanRef param6value = TRUE;
     CFMutableArrayRef order;
     CFMutableDictionaryRef dict;

     // Create the dictionary that will contain the parameters
     dict = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, &kCFTypeDictionaryValueCallBacks);

     // Add the parameters to dict
     CFDictionaryAddValue(dict, param1key, param1value);
     CFDictionaryAddValue(dict, param2key, param2value);
     CFDictionaryAddValue(dict, param3key, param3value);
     CFDictionaryAddValue(dict, param4key, param4value);
     CFDictionaryAddValue(dict, param5key, param5value);
     CFDictionaryAddValue(dict, param6key, param6value);

     // Create the array that the parameter order is stored in
     order = CFArrayCreateMutable(NULL, 0, &kCFTypeArrayCallBacks);

     // Add the parameters to designate their order
     CFArrayAppendValue(order, param1key);
     CFArrayAppendValue(order, param2key);
     CFArrayAppendValue(order, param3key);
     CFArrayAppendValue(order, param4key);
     CFArrayAppendValue(order, param5key);
     CFArrayAppendValue(order, param6key);

     // Create the url object
     CFURLRef url = CFURLCreateWithString(NULL, blogAddress, NULL);

     // Create the request invocation
     request = WSMethodInvocationCreate(url, methodName, protocol);

     // Set the parameters of request
     WSMethodInvocationSetParameters(request, dict, order);

     // Send the request invocation and store its result in resultDict
     CFDictionaryRef resultDict = WSMethodInvocationInvoke(request);

     if( WSMethodResultIsFault(resultDict) ) {
         CFTypeRef faultString = CFDictionaryGetValue(resultDict, kWSFaultString);
         CFShow(faultString);
     }
     else {
         CFTypeRef myResult = CFDictionaryGetValue(resultDict, kWSMethodInvocationResult);
         CFShow(myResult);
         CFShow(CFSTR("Item posted!"));
     }
}

I've run this by a couple mailing lists to no avail. Any help would be greatly apprecciated!

-Joel

[Diggory Laycock]

How about WSMakeStubs and

http://www.dev1.eraserver.net/WebServices/Blogger/

[Joel]

Originally posted by Diggory Laycock:
How about WSMakeStubs and

http://www.dev1.eraserver.net/WebServices/Blogger/

Hm.. That's interesting. I used WSMakeStubs and successfully made it produce a set of four files for me:

WSGeneratedObj.h
WSGeneratedObj.m
WSStub.h
WSStub.m

Unfortunately, I couldn't make heads or tails out of what was going on in there. Is there somewhere that explains this a little bit better? There were redeclarations and such in the WSStub files that made no sense. The only reference I found to it in the docs goes as follows:

WSDL Support

Currently the first release of Web Services does not include a WDSL API. A tool is available at /Developer/Tools/WSMakeStubs to generate static stubs. This tool parses the WSDL and produces templates for C++, Objective-C, and AppleScript. Various degrees of complexity are available in the generated stubs. The stub adheres to “Section 5” encoding and simple marshalling.

This wasn't very helpful. Thanks for your help thus far!

-Joel

[Diggory Laycock]

I think you generated Obj-C classes there:

I'm not familiar with Carbon - which is what I assume you're using - perhaps you want to create C++ objects instead.

Code:
Widebook:~ diggory$ /developer/tools/WSMakeStubs
/developer/tools/WSMakeStubs [-x lang] [-dir directory] [-name fname] { -url <url> | -file <file> }

    Generates stubs for use with WebServices.framework.  One of -url or -file must be specified.    
           -x:  the development language to use        
         -dir:  a path to the output directory where the stubs will be generated.         
                If not specified, defaults to the current working directory        
        -name:  the name to be used for the root of the output file.  An        
                appropriate extension will be added to the file[s].  The default        
                name is WSStub.        
         -url:  url to a valid WSDL file        
        -file:  path to a valid WSDL file in the filesystem.  If this is '-', the        
                file is read from stdin        

    Available language emitters: (c++ is the default)    
                c++:  CoreFoundation with C++ bindings.  Additionally creates        
                      WSGeneratedStub.{cp.h}        
               ObjC:  CoreFoundation with Objective-C bindings.  Additionally        
                      creates WSGeneratedObj.{m,h}        
        applescript:  AppleScript        

    Tool version 0.2 (smz)    

Widebook:~ diggory$

see also here:

http://www.macdevcenter.com/pub/a/ma...ne.html?page=2

[Joel]

Originally posted by Diggory Laycock:
see also here:

http://www.macdevcenter.com/pub/a/ma...ne.html?page=2

Ah! That should be quite helpful. Look as I may, I couldn't find any sort of tutorial on this except for the Web Services section in the CoreFoundation Objective-C docs (which were spotty at best). Thanks! The only reason I was using CoreFoundation was because that's the only way I could find to access it aside from Ranchero Software's XML-RPC cocoa library (and I'd prefer to learn Apple's library if at all possible). I would much rather develop it in Cocoa and Objective-C.

-Joel