(C# UWP/WinRT) OneDrive -- List Non-Root Directory

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 v9.5.0.68 or greater.

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

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

Chilkat.Http http = new Chilkat.Http();

// Use your previously obtained access token here:
// See the following examples for getting an access token:
//    Get Microsoft Graph OAuth2 Access Token (Azure AD v2.0 Endpoint).
//    Get Microsoft Graph OAuth2 Access Token (Azure AD Endpoint).
//    Refresh Access Token (Azure AD v2.0 Endpoint).
//    Refresh Access Token (Azure AD Endpoint).

// (Make sure your token was obtained with the FilesRead or Files.ReadWrite scope.)
http.AuthToken = "MICROSOFT_GRAPH_ACCESS_TOKEN";

// Send a Get request like this:
// GET /me/drive/root:/{item-path}:/children

// This example will get the DriveItems in /Misc/old
// (In other words, we're getting the directory listing for /Misc/old.)
http.SetUrlVar("item_path","/Misc/old");

string resp = await http.QuickGetStrAsync("https://graph.microsoft.com/v1.0/me/drive/root:{$item_path}:/children");
if (http.LastMethodSuccess != true) {
    Debug.WriteLine(http.LastErrorText);
    return;
}

// The response should be JSON.
Chilkat.JsonObject json = new Chilkat.JsonObject();
json.EmitCompact = false;
json.Load(resp);

// A successful response should return a status code of 200.
if (http.LastStatus != 200) {
    Debug.WriteLine(json.Emit());
    Debug.WriteLine("Response status = " + Convert.ToString(http.LastStatus));
    return;
}

Debug.WriteLine(json.Emit());

Chilkat.CkDateTime lastMod = new Chilkat.CkDateTime();
Chilkat.CkDateTime photoTaken = new Chilkat.CkDateTime();

// Iterate over the DriveItems in the JSON response:
int i = 0;
int numItems = json.SizeOfArray("value");
while (i < numItems) {
    json.I = i;
    Debug.WriteLine("-- DriveItem " + Convert.ToString(i + 1));
    Debug.WriteLine("id: " + json.StringOf("value[i].id"));
    Debug.WriteLine("name: " + json.StringOf("value[i].name"));
    Debug.WriteLine("size: " + Convert.ToString(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) {
        Debug.WriteLine("This is a folder with " + Convert.ToString(json.IntOf("value[i].folder.childCount")) + " children");
    }

    if (json.HasMember("value[i].file") == true) {
        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"));
    }

    if (json.HasMember("value[i].image") == true) {
        Debug.WriteLine("This is an image.");
        Debug.WriteLine("height: " + Convert.ToString(json.IntOf("value[i].image.height")));
        Debug.WriteLine("width: " + Convert.ToString(json.IntOf("value[i].image.width")));
    }

    if (json.HasMember("value[i].photo") == true) {
        Debug.WriteLine("This is a photo.");
        photoTaken.SetFromTimestamp(json.StringOf("value[i].photo.takenDateTime"));
        Debug.WriteLine("photo taken on " + photoTaken.GetAsRfc822(true));
    }

    if (json.HasMember("value[i].audio") == true) {
        Debug.WriteLine("This is an audio file.");
        Debug.WriteLine("duration: " + Convert.ToString(json.IntOf("value[i].audio.duration")));
    }

    i = i + 1;
}