(Objective-C) 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.

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#import <CkoHttp.h>
#import <CkoJsonObject.h>
#import <NSString.h>

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

CkoHttp *http = [[CkoHttp alloc] init];

// 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.)
CkoJsonObject *jsonToken = [[CkoJsonObject alloc] init];
BOOL success = [jsonToken LoadFile: @"qa_data/tokens/oneDrive.json"];
if (success == NO) {
    NSLog(@"%@",jsonToken.LastErrorText);
    return;
}

http.AuthToken = [jsonToken StringOf: @"access_token"];

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

NSString *resp = [http QuickGetStr: @"https://graph.microsoft.com/v1.0/me/drives"];
if (http.LastMethodSuccess != YES) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

// The response should be JSON.
CkoJsonObject *json = [[CkoJsonObject alloc] init];
json.EmitCompact = NO;
[json Load: resp];

// A successful response should return a status code of 200.
if ([http.LastStatus intValue] != 200) {
    NSLog(@"%@",[json Emit]);
    NSLog(@"%@%d",@"Response status = ",[http.LastStatus intValue]);
    return;
}

NSLog(@"%@",[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"] intValue];
while (i < numDrives) {
    json.I = [NSNumber numberWithInt: i];
    NSLog(@"%@%d",@"-- Drive ",i + 1);
    NSLog(@"%@%@",@"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..
    NSLog(@"%@%@",@"total: ",[json StringOf: @"value[i].quota.total"]);
    i = i + 1;
}