(C# UWP/WinRT) OneDrive -- List Drives

Example to retrieve the list of Drive resources available for a target User or Group.

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";

// Sends the following GET request:
// GET https://graph.microsoft.com/v1.0/me/drives

string resp = await http.QuickGetStrAsync("https://graph.microsoft.com/v1.0/me/drives");
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());

// Sample output:

// 	{
// 	  "@odata.context": "https://graph.microsoft.com/v1.0/$metadata#drives",
// 	  "value": [
// 	    {
// 	      "id": "3a33fceb9b74cc15",
// 	      "driveType": "personal",
// 	      "owner": {
// 	        "user": {
// 	          "displayName": "Matt Smith",
// 	          "id": "3a33fceb9b74cc15"
// 	        }
// 	      },
// 	      "quota": {
// 	        "deleted": 0,
// 	        "remaining": 1114571275977,
// 	        "state": "normal",
// 	        "total": 1115617755136,
// 	        "used": 1046479159
// 	      }
// 	    }
// 	  ]
// 	}

// Iterate over the drives in the JSON response:
int i = 0;
int numDrives = json.SizeOfArray("value");
while (i < numDrives) {
    json.I = i;
    Debug.WriteLine("-- Drive " + Convert.ToString(i + 1));
    Debug.WriteLine("id: " + json.StringOf("value[i].id"));
    // The size will be a number larger than what can fit in a 32-bit integer.
    // Get the integer as a string..
    Debug.WriteLine("total: " + json.StringOf("value[i].quota.total"));
    i = i + 1;
}