(VB.NET) OneDrive -- List Non-Root Directory

See more OneDrive Examples

This gets the collection of DriveItem children for a non-root DriveItem. This is the same as for getting the children for the root DriveItem, except the URL includes the path to the desired non-root DriveItem.

Note: This example requires Chilkat v9.5.0.97 or greater.

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

' This example uses the OAuth client credentials flow.
' See How to Create an Azure App Registration for OAuth 2.0 Client Credentials

' Use your client ID, client secret, and tenant ID in the following lines
Dim json As New Chilkat.JsonObject
json.UpdateString("client_id","2871da2c-8176-4b7f-869b-2311aa82e743")
json.UpdateString("client_secret","2hu9Q~r5QuryUcEkNbg1btLtnfU1VUXzhSCG6brH")
json.UpdateString("scope","https://graph.microsoft.com/.default")
json.UpdateString("token_endpoint","https://login.microsoftonline.com/114d7ed6-71bf-4dbe-a866-748364121bf2/oauth2/v2.0/token")

Dim http As New Chilkat.Http
http.AuthToken = json.Emit()

' Send a Get request like this:
' GET /users/{user-id}/drive/root:/{item-path}:/children

' This example will get the DriveItems in /TestDir
' (In other words, we're getting the directory listing for /TestDir.)
http.SetUrlVar("item_path","/TestDir")
http.SetUrlVar("user_id","4fe732c3-322e-4a6b-b729-2fd1eb5c6104")

Dim resp As String = http.QuickGetStr("https://graph.microsoft.com/v1.0/users/{$user_id}/drive/root:{$item_path}:/children")
If (http.LastMethodSuccess <> True) Then
    Debug.WriteLine(http.LastErrorText)
    Exit Sub
End If


' The response should be JSON.
json.EmitCompact = False
json.Load(resp)

' A successful response should return a status code of 200.
If (http.LastStatus <> 200) Then
    Debug.WriteLine(json.Emit())
    Debug.WriteLine("Response status = " & http.LastStatus)
    Exit Sub
End If


Debug.WriteLine(json.Emit())

Dim lastMod As New Chilkat.CkDateTime
Dim photoTaken As New Chilkat.CkDateTime

' Iterate over the DriveItems in the JSON response:
Dim i As Integer = 0
Dim numItems As Integer = json.SizeOfArray("value")
While i < numItems
    json.I = i
    Debug.WriteLine("-- DriveItem " & (i + 1))
    Debug.WriteLine("id: " & json.StringOf("value[i].id"))
    Debug.WriteLine("name: " & json.StringOf("value[i].name"))
    Debug.WriteLine("size: " & json.IntOf("value[i].size"))

    ' Get the lastModifiedDateTime
    lastMod.SetFromTimestamp(json.StringOf("value[i].fileSystemInfo.lastModifiedDateTime"))

    ' Is this a folder?
    If (json.HasMember("value[i].folder") = True) Then
        Debug.WriteLine("This is a folder with " & json.IntOf("value[i].folder.childCount") & " children")
    End If

    If (json.HasMember("value[i].file") = True) Then
        Debug.WriteLine("This is a file.")
        Debug.WriteLine("SHA1 hash: " & json.StringOf("value[i].file.hashes.sha1Hash"))
        Debug.WriteLine("mimeType: " & json.StringOf("value[i].mimeType"))
    End If

    If (json.HasMember("value[i].image") = True) Then
        Debug.WriteLine("This is an image.")
        Debug.WriteLine("height: " & json.IntOf("value[i].image.height"))
        Debug.WriteLine("width: " & json.IntOf("value[i].image.width"))
    End If

    If (json.HasMember("value[i].photo") = True) Then
        Debug.WriteLine("This is a photo.")
        photoTaken.SetFromTimestamp(json.StringOf("value[i].photo.takenDateTime"))
        Debug.WriteLine("photo taken on " & photoTaken.GetAsRfc822(True))
    End If

    If (json.HasMember("value[i].audio") = True) Then
        Debug.WriteLine("This is an audio file.")
        Debug.WriteLine("duration: " & json.IntOf("value[i].audio.duration"))
    End If


    i = i + 1
End While