(Objective-C) Create Folder

In the Drive API, a folder is essentially a file — one identified by the special folder MIME type application/vnd.google-apps.folder

See Google Drive Files: create for more details.

Also See Working with Folders for more details.

Chilkat Objective-C Library Downloads MAC OS X (Cocoa) Libs iOS Libs

#import <CkoAuthGoogle.h>
#import <CkoRest.h>
#import <CkoJsonObject.h>
#import <NSString.h>

// Creating a folder is technically an upload of a 0-length file
// having a MIME type of "application/vnd.google-apps.folder"

BOOL success = YES;

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

// This example uses a previously obtained access token having permission for the 
// Google Drive scope.

CkoAuthGoogle *gAuth = [[CkoAuthGoogle alloc] init];
gAuth.AccessToken = @"GOOGLE-DRIVE-ACCESS-TOKEN";

CkoRest *rest = [[CkoRest alloc] init];

// Connect using TLS.
BOOL bAutoReconnect = YES;
success = [rest Connect: @"www.googleapis.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: bAutoReconnect];

// Provide the authentication credentials (i.e. the access token)
[rest SetAuthGoogle: gAuth];

// A multipart upload to Google Drive needs a multipart/related Content-Type
[rest AddHeader: @"Content-Type" value: @"multipart/related"];

// Specify each part of the request.

// The 1st part is JSON with information about the folder.
rest.PartSelector = @"1";
[rest AddHeader: @"Content-Type" value: @"application/json; charset=UTF-8"];

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json AppendString: @"name" value: @"testFolder"];
[json AppendString: @"description" value: @"A folder to contain test files."];
[json AppendString: @"mimeType" value: @"application/vnd.google-apps.folder"];
[rest SetMultipartBodyString: [json Emit]];

// The 2nd part would be the file content.
// Since this is a folder, skip the 2nd part entirely and go straight to the upload..

NSString *jsonResponse = [rest FullRequestMultipart: @"POST" uriPath: @"/upload/drive/v3/files?uploadType=multipart"];
if (rest.LastMethodSuccess != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

// A successful response will have a status code equal to 200.
if ([rest.ResponseStatusCode intValue] != 200) {
    NSLog(@"%@%d",@"response status code = ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@%@",@"response status text = ",rest.ResponseStatusText);
    NSLog(@"%@%@",@"response header: ",rest.ResponseHeader);
    NSLog(@"%@%@",@"response JSON: ",jsonResponse);
    return;
}

// Show the JSON response.
[json Load: jsonResponse];

// Show the full JSON response.
json.EmitCompact = NO;
NSLog(@"%@",[json Emit]);

// A successful response looks like this:
// {
//   "kind": "drive#file",
//   "id": "0B53Q6OSTWYolY2tPU1BnYW02T2c",
//   "name": "testFolder",
//   "mimeType": "application/vnd.google-apps.folder"
// }

// Get the fileId:
NSLog(@"%@%@",@"fileId: ",[json StringOf: @"id"]);