Is it possible to implement operations on Workflows (like in SharePoint Designer) on iOS?
Maybe I could call SharePoint's services to get a list of workflows, nodes in each workflow and draw it as a tree in iOS?

This is a general question, and I would like to get a high-level picture of how can I do that.

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    sp2007, SP2010 or SP2013? Which edition? – Steve B Sep 24 '12 at 14:15
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    I don't think he knows. I think it's a general question to determine if he / his company can make an iOS app to manage certain functionality of SharePoint from the iPhone or iPad... – RJ Cuthbertson Sep 24 '12 at 14:21
  • @SteveB we expect to use SP2010 or SP2013. This is a topic of discussion for now. Is it makes significant difference according to my question? – surlac Sep 24 '12 at 15:31
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    2010 introduced Visio Services with visual workflow viewing. Quite obscure product, but it may help you (if you can use the Enterprise licence) – Steve B Sep 24 '12 at 15:40
  • Thanks @SteveB. While researching I've found that Visio Services is kind of Lite version of SP Designer. Is it possible to open SP Designer in a browser on iOS? If so, it isn't necessary to write Designer-like iOS-client and deal with services to work with workflows. – surlac Sep 25 '12 at 10:00

There is no web service to interact with workflows. (You could write a custom one I guess).


There is a Workflow Web Service: workflow.asmx, it is just undocumented for SP 2010.

What kind of operations are you trying to perform? That is a pretty broad area, and depending on the desired action, there may be different "better" approaches to take.

If you're trying to initiate a workflow, one way you could achieve that would be to set the workflow to start on the creation of a new list item (and hit that with Lists.asmx). This method also allows you to pass in initialization data in the list's columns.

If you're trying to act on a specific step in a workflow, I don't believe you'd be able to do so without writing a custom web service, or a custom workflow to act on your target.

Check out this similar question on SO: SharePoint, Workflow and Web Services - restart workflow

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    That isn't entirely true, there is a workflow web service with some operations available to it. GetTemplatesForItem fetches all workflows for a particular item and StartWorkflow will trigger a workflow. msdn.microsoft.com/en-us/library/aa981383(v=office.12).aspx – Eric Alexander Sep 24 '12 at 15:08
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    @PirateEric The workflow web service was only in 2007 though right? It isn't on the list of 2010 web services. – RJ Cuthbertson Sep 24 '12 at 16:21
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    It's there in 2010, I just checked our farm. AlterToDo ClaimReleaseTask GetTemplatesForItem GetToDosForItem GetWorkflowDataForItem GetWorkflowTaskData StartWorkflow – Eric Alexander Sep 24 '12 at 16:29
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    There aren't any for those operations. You'd have to program your own to do that. The operations listed above are the only native ones. – Eric Alexander Sep 25 '12 at 14:47
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    I haven't used o365 so I'm not 100% certain on the limitations, I want to say no, but they have so many levels of service on that, I can't give you an accurate answer. – Eric Alexander Sep 26 '12 at 14:36

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