(AutoIt) Upload a File to a SharePoint Documents Library using HttpCurl

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This example shows how to use Chilkat's HttpCurl class to upload a local file to the root of a SharePoint Documents document library. The example uses Microsoft Graph to automatically resolve the SharePoint site name to a site ID, find the drive ID for the Documents library, and then upload helloChilkat.txt so it is stored in SharePoint as example.txt. A successful upload returns 201 Created when a new file is created, or 200 OK when an existing file is updated or replaced.

For more information, see https://learn.microsoft.com/en-us/sharepoint/dev/sp-add-ins/working-with-folders-and-files-with-rest

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Local $bSuccess = False

; This example uploads a local file to the root of a SharePoint
; Documents document library.
; 
; The local file:
; 
;   qa_data/helloChilkat.txt
; 
; is uploaded and stored in SharePoint as:
; 
;   example.txt
; 
; The example demonstrates how HttpCurl automatically resolves:
; 
;   site_name  -> site_id
;   site_id    -> document_library_id
; 
; and then uploads the file to the target document library using
; the Microsoft Graph file upload API.

$bSuccess = False

; --------------------------------------------------------------------------------------------------------
; Before running this example, create an Azure App Registration and grant it
; the Microsoft Graph permissions required to access SharePoint.
; 
; The application will authenticate using OAuth2 Client Credentials.
; See:
; How to Create SharePoint App Registration for OAuth 2.0 Client Credentials
; --------------------------------------------------------------------------------------------------------

; Build a JSON authentication configuration.
; HttpCurl will use this information to automatically obtain OAuth2 access tokens.
$oJsonAuth = ObjCreate("Chilkat.JsonObject")

; Enable secret lookup.
; 
; Instead of hard-coding sensitive values such as the client ID,
; client secret, and token endpoint, secret specification strings
; are used.  Chilkat automatically retrieves the actual values from
; Windows Credential Manager (Windows) or Apple Keychain (macOS).
; 
; See:
; Secret Specification Strings
$oJsonAuth.EnableSecrets = True

$bSuccess = $oJsonAuth.UpdateString("oauth2.client_id","!!sharepoint|oauth2|client_id")
If ($bSuccess = True) Then
    $bSuccess = $oJsonAuth.UpdateString("oauth2.client_secret","!!sharepoint|oauth2|client_secret")
EndIf

If ($bSuccess = True) Then
    $bSuccess = $oJsonAuth.UpdateString("oauth2.token_endpoint","!!sharepoint|oauth2|token_endpoint")
EndIf

If ($bSuccess = False) Then
    ConsoleWrite($oJsonAuth.LastErrorText & @CRLF)
    Exit
EndIf

; Request Microsoft Graph permissions that were granted to the application.
$oJsonAuth.UpdateString("oauth2.scope","https://graph.microsoft.com/.default")

; ---------------------------------------------------------------------------------------------------

$oCurl = ObjCreate("Chilkat.HttpCurl")

; Associate the OAuth2 configuration with HttpCurl.
; 
; When the request is executed, Chilkat automatically obtains an access token
; if needed and adds the Authorization: Bearer header to the HTTP request.
$oCurl.SetAuth($oJsonAuth)

; Define values that are already known.
; 
; These variables are referenced in curl commands using
; {{variable_name}} substitution syntax.
$oCurl.SetVar "sharepoint_hostname","example.sharepoint.com"
$oCurl.SetVar "site_name","test"

; The upload request requires a Microsoft Graph site ID.
; 
; Because the application only knows the SharePoint site name,
; define a helper function that can retrieve the site information.
$oCurl.AddFunction("getSite","GET https://graph.microsoft.com/v1.0/sites/root:/sites/{{site_name}}")

; Extract the site's ID and store it in the HttpCurl variable named site_id.
$oCurl.AddOutput("getSite","id","site_id")

; The upload request also requires the drive ID of the Documents
; document library.
; 
; Microsoft Graph refers to document libraries as "drives".
$oCurl.AddFunction("getDrives","GET https://graph.microsoft.com/v1.0/sites/{{site_id}}/drives")

; Search the returned drives for the one named "Documents"
; and save its drive ID in the document_library_id variable.
$oCurl.AddOutput2("getDrives","value","name","Documents",True,"id","document_library_id")

; This is the target Microsoft Graph request.
; 
; PUT /drives/{drive-id}/root:/{filename}:/content
; 
; This endpoint uploads a file to a document library.  If the target
; file already exists, Microsoft Graph replaces the existing content.
; If the file does not exist, a new file is created.
; 
; The --data-binary option uploads the contents of the local file
; exactly as stored on disk.
; 
; The uploaded file will be named "example.txt" in the root of the
; Documents document library.
Local $sCurlCommand = "curl -X PUT -H ""Content-Type: text/plain; charset=utf-8"" --data-binary @qa_data/helloChilkat.txt ""https://graph.microsoft.com/v1.0/drives/{{document_library_id}}/root:/example.txt:/content"""

; Execute the request.
; 
; HttpCurl examines the target request and determines that
; document_library_id is required.
; 
; To obtain this value, it automatically builds and executes
; the following dependency chain:
; 
;   1) getSite    -> site_id
;   2) getDrives  -> document_library_id
;   3) upload     -> example.txt
; 
; The final response returned by DoYourThing is the response
; from the upload request.
$bSuccess = $oCurl.DoYourThing($sCurlCommand)
If ($bSuccess = False) Then
    ConsoleWrite($oCurl.LastErrorText & @CRLF)
    Exit
EndIf

; A successful upload can return:
; 
;   201 (Created)
;       A new file was created.
; 
;   200 (OK)
;       An existing file was updated or replaced.
; 
; Any other status code typically indicates an authentication,
; permission, site lookup, document library lookup, or upload error.
Local $iStatusCode = $oCurl.StatusCode
If (($iStatusCode <> 201) And ($iStatusCode <> 200)) Then
    ConsoleWrite($oCurl.ResponseBodyStr & @CRLF)
    ConsoleWrite("status code = " & $iStatusCode & @CRLF)
    Exit
EndIf

; The file has been uploaded successfully and is now available
; in the root of the Documents document library as:
; 
;   example.txt
; 
ConsoleWrite("Success." & @CRLF)