(VB.NET UWP/WinRT) SharePoint -- Upload File

Demonstrates how to upload a file to a SharePoint folder.

Chilkat Universal Windows Platform (UWP) / WinRT Downloads Chilkat for the Universal Windows Platform (UWP)

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

' -------------------------------------------------------------------------
' The following comments apply to SharePoint Windows classic authentication.
' -------------------------------------------------------------------------
' For example, imagine our SharePoint endpoint is https://xyzoffice.mycompany.com/
' The SHAREPOINT_NTLM_DOMAIN would be "mycompany.com"
' The SHAREPOINT_HTTPS_DOMAIN would be "xyzoffice.mycompany.com"
' Also, the SHAREPOINT_USERNAME would be just the name, not a full email address.
' for example, "chilkat" instead of "chilkat@mycompany.com"

Dim http As New Chilkat.Http

' If SharePoint Windows classic authentication is used, then set the 
' Login, Password, LoginDomain, and NtlmAuth properties.
http.Login = "SHAREPOINT_USERNAME"
http.Password = "SHAREPOINT_PASSWORD"
http.LoginDomain = "SHAREPOINT_NTLM_DOMAIN"
http.NtlmAuth = True

' -------------------------------------------------------------------------
' The more common case is to use SharePoint Online authentication (via the SPOIDCRL cookie).
' If so, do not set Login, Password, LoginDomain, and NtlmAuth, and instead
' establish the cookie as shown at SharePoint Online Authentication
' -------------------------------------------------------------------------

' When creating, updating, and deleting SharePoint entities, we'll need
' to first get the server's form digest value to send in the X-RequestDigest header.
' This can be retrieved by making a POST request with an empty body to
' http://<site url>/_api/contextinfo and extracting the value of the
' d:FormDigestValue node in the XML that the contextinfo endpoint returns.

' If your Sharepoint site is within a site collection, then use "https://SHAREPOINT_HTTPS_DOMAIN/sites/teamA/_api/contextinfo" where "teamA" is the name of the site.
Dim resp As Chilkat.HttpResponse = Await http.PostXmlAsync("https://SHAREPOINT_HTTPS_DOMAIN/_api/contextinfo","","utf-8")
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


If (resp.StatusCode <> 200) Then
    ' A response status code not equal to 200 indicates failure.
    Debug.WriteLine("Response status code = " & resp.StatusCode)
    Debug.WriteLine("Response body:")
    Debug.WriteLine(resp.BodyStr)

    Exit Sub
End If


Dim xml As New Chilkat.Xml
xml.LoadXml(resp.BodyStr)


Debug.WriteLine(xml.GetXml())

' The response XML looks like this:

' <?xml version="1.0" encoding="utf-8" ?>
' <d:GetContextWebInformation xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml" m:type="SP.ContextWebInformation">
'     <d:FormDigestTimeoutSeconds m:type="Edm.Int32">1800</d:FormDigestTimeoutSeconds>
'     <d:FormDigestValue>0x3059FFB920651834540F3E6792EA73F5746B302E953FF4E808E485DB1E6C2836C7CF924644995F092453B02A94DE14A7962674B7B16780AF16EAFB8C246BCDC7,12 Apr 2017 17:08:22 -0000</d:FormDigestValue>
'     <d:LibraryVersion>15.0.4569.1000</d:LibraryVersion>
'     <d:SiteFullUrl>https://SHAREPOINT_HTTPS_DOMAIN</d:SiteFullUrl>
'     <d:SupportedSchemaVersions m:type="Collection(Edm.String)">
'         <d:element>14.0.0.0</d:element>
'         <d:element>15.0.0.0</d:element>
'     </d:SupportedSchemaVersions>
'     <d:WebFullUrl>https://SHAREPOINT_HTTPS_DOMAIN</d:WebFullUrl>
' </d:GetContextWebInformation>
' 

' We'll use the d:FormDigestValue in the X-RequestDigest request header
' for the actual file upload.

' --------------------------------------------------------------------
' Now upload a file named "penguins2.jpg" to the "/Documents" folder.

Dim req As New Chilkat.HttpRequest
req.HttpVerb = "POST"
' Change "/Documents" to whatever folder is the destination.
' If your Sharepoint site is within a site collection, then use "/sites/teamA/_api/web/GetFolderByServerRelativeUrl('/sites/teamA/Documents')/Files/add(url='penguins2.jpg',overwrite=true)" where "teamA" is the name of the site.
req.Path = "/_api/web/GetFolderByServerRelativeUrl('/Documents')/Files/add(url='penguins2.jpg',overwrite=true)"
' Give the location of the file to be uploaded.  
' Note: The file is not loaded into memory at this point.  It is never fully loaded
' into memory.  Instead, the file data is streamed directly from the file when
' when the upload occurs.
req.StreamBodyFromFile("qa_data/jpg/penguins2.jpg")

' Add the X-RequestDigest header field.
req.AddHeader("X-RequestDigest",xml.GetChildContent("d:FormDigestValue"))

' Do the upload using https (TLS). Port 443 is the default port for https.
Dim bUseTls As Boolean = True
resp = Await http.SynchronousRequestAsync("SHAREPOINT_HTTPS_DOMAIN",443,bUseTls,req)
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


' The response body contains XML.  Load it into our xml object..
xml.LoadXml(resp.BodyStr)

If (resp.StatusCode <> 200) Then
    Debug.WriteLine("Response status code = " & resp.StatusCode)
    Debug.WriteLine(xml.GetXml())
    Debug.WriteLine("Failed")

    Exit Sub
End If




' Show the successful XML response.
Debug.WriteLine(xml.GetXml())
Debug.WriteLine("Success.")

' A successful XML response looks like this:

' <?xml version="1.0" encoding="utf-8" ?>
' <entry xml:base="https://SHAREPOINT_HTTPS_DOMAIN/_api/" xmlns="http://www.w3.org/2005/Atom" xmlns:d="http://schemas.microsoft.com/ado/2007/08/dataservices" xmlns:m="http://schemas.microsoft.com/ado/2007/08/dataservices/metadata" xmlns:georss="http://www.georss.org/georss" xmlns:gml="http://www.opengis.net/gml">
'     <id>Web/GetFileByServerRelativeUrl('/Documents/penguins2.jpg')</id>
'     <category term="SP.File" scheme="http://schemas.microsoft.com/ado/2007/08/dataservices/scheme" />
'     <link rel="edit" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)" />
'     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Author" type="application/atom+xml;type=entry" title="Author" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/Author" />
'     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/CheckedOutByUser" type="application/atom+xml;type=entry" title="CheckedOutByUser" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/CheckedOutByUser" />
'     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ListItemAllFields" type="application/atom+xml;type=entry" title="ListItemAllFields" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/ListItemAllFields" />
'     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/LockedByUser" type="application/atom+xml;type=entry" title="LockedByUser" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/LockedByUser" />
'     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/ModifiedBy" type="application/atom+xml;type=entry" title="ModifiedBy" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/ModifiedBy" />
'     <link rel="http://schemas.microsoft.com/ado/2007/08/dataservices/related/Versions" type="application/atom+xml;type=feed" title="Versions" href="Web/GetFileByServerRelativeUrl(&apos;/Documents/penguins2.jpg&apos;)/Versions" />
'     <title />
'     <updated>2017-04-12T17:16:44Z</updated>
'     <author>
'         <name />
'     </author>
'     <content type="application/xml">
'         <m:properties>
'             <d:CheckInComment />
'             <d:CheckOutType m:type="Edm.Int32">0</d:CheckOutType>
'             <d:ContentTag>{FC8D1A58-9544-496C-8D9C-19B501A8B322},2,3</d:ContentTag>
'             <d:CustomizedPageStatus m:type="Edm.Int32">0</d:CustomizedPageStatus>
'             <d:ETag>"{FC8D1A58-9544-496C-8D9C-19B501A8B322},2"</d:ETag>
'             <d:Exists m:type="Edm.Boolean">true</d:Exists>
'             <d:Length m:type="Edm.Int64">99832</d:Length>
'             <d:Level m:type="Edm.Byte">255</d:Level>
'             <d:MajorVersion m:type="Edm.Int32">0</d:MajorVersion>
'             <d:MinorVersion m:type="Edm.Int32">1</d:MinorVersion>
'             <d:Name>penguins2.jpg</d:Name>
'             <d:ServerRelativeUrl>/Documents/penguins2.jpg</d:ServerRelativeUrl>
'             <d:TimeCreated m:type="Edm.DateTime">2017-04-12T17:14:19Z</d:TimeCreated>
'             <d:TimeLastModified m:type="Edm.DateTime">2017-04-12T17:16:44Z</d:TimeLastModified>
'             <d:Title m:null="true" />
'             <d:UIVersion m:type="Edm.Int32">1</d:UIVersion>
'             <d:UIVersionLabel>0.1</d:UIVersionLabel>
'         </m:properties>
'     </content>
' </entry>
' 
'