How to create a folder in SharePoint 2010 document library using REST or HTTP methods

Question

I am using Java to make calls to the SharePoint REST Interface to get list items of a document library and HTTP methods to upload documents to SharePoint. But, I am having a difficult time trying to figure out how to create a folder programmatically using either REST or HTTP methods. Whenever I try to make a POST with an item data I get the following error

Invalid slug header for BLOBs. Slug headers must be server- or web-relative URL of the file. Server-relative URLs begins with a forward slash (\"/\").

Can anyone please help.

Many thanks in advance.

Dinesh

Answer 1

Get items

To get all items you can either call this url:

http://yourhost/_vti_bin/ListData.svc/YourLib

Or you can call this url:

http://yourhost/_vti_bin/Lists.asmx

with this payload:

<soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
    xmlns:xsd='http://www.w3.org/2001/XMLSchema' 
    xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>
  <soap:Body>
    <GetListItems xmlns='http://schemas.microsoft.com/sharepoint/soap/'>
      <listName>YourLib</listName>
    </GetListItems>
  </soap:Body>
</soap:Envelope>

Create folder

I can't say if this is the correct approach, but it should work.
It uses Batch which I find a bit scary, but I have used this myself with success.
To create a folder you can call this url:

http://yourhost/sites/wf/_vti_bin/Lists.asmx

with this payload:

<soap:Envelope xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' 
    xmlns:xsd='http://www.w3.org/2001/XMLSchema' 
    xmlns:soap='http://schemas.xmlsoap.org/soap/envelope/'>
  <soap:Body>
    <UpdateListItems xmlns='http://schemas.microsoft.com/sharepoint/soap/'>
      <listName>YourLib</listName>
      <updates>
        <Batch OnError='Continue' PreCalc='TRUE' ListVersion='0' >
          <Method ID='1' Cmd='New'>
            <Field Name='FSObjType'>1</Field>
            <Field Name='BaseName'>YourFolder</Field>
          </Method>
        </Batch>
      </updates>
    </UpdateListItems>
  </soap:Body>
</soap:Envelope>