Objective-C Google Drive: Rename a File (Update a File's MetaData)

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Updates a file's metadata and/or content with patch semantics. (This example renames the file having id = 1R_70heIyzIAu1_u0prXbYcaIiJRVkgBl)

Documentation: https://developers.google.com/drive/v3/reference/files/update

#import <CkoRest.h>
#import <CkoOAuth2.h>
#import <CkoJsonObject.h>
#import <CkoStringBuilder.h>
#import <NSString.h>

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

//   Provide a previously obtained OAuth2 access token.
CkoOAuth2 *oauth2 = [[CkoOAuth2 alloc] init];
oauth2.AccessToken = @"OAUTH2_ACCESS_TOKEN";
[rest SetAuthOAuth2: oauth2];

success = [rest Connect: @"www.googleapis.com" port: [NSNumber numberWithInt: 443] tls: YES autoReconnect: YES];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

[rest AddQueryParam: @"includeTeamDriveItems" value: @"true"];
[rest AddQueryParam: @"supportsTeamDrives" value: @"true"];

//  The following code creates the JSON request body.
//  The JSON created by this code is shown below.
CkoJsonObject *jsonReq = [[CkoJsonObject alloc] init];
[jsonReq UpdateString: @"name" value: @"three_penguins.jpg"];

CkoStringBuilder *sbReq = [[CkoStringBuilder alloc] init];
[jsonReq EmitSb: sbReq];

[rest AddHeader: @"Content-Type" value: @"application/json"];

CkoStringBuilder *sbJson = [[CkoStringBuilder alloc] init];
success = [rest FullRequestSb: @"PATCH" uriPath: @"/drive/v3/files/1R_70heIyzIAu1_u0prXbYcaIiJRVkgBl" requestBody: sbReq responseBody: sbJson];
if (success != YES) {
    NSLog(@"%@",rest.LastErrorText);
    return;
}

if ([rest.ResponseStatusCode intValue] != 200) {
    NSLog(@"%@%d",@"Received error response code: ",[rest.ResponseStatusCode intValue]);
    NSLog(@"%@",@"Response body:");
    NSLog(@"%@",[sbJson GetAsString]);
    return;
}

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json LoadSb: sbJson];

//  The following code parses the JSON response.
//  A sample JSON response is shown below the sample code.
NSString *kind = 0;
NSString *id = 0;
NSString *name = 0;
NSString *mimeType = 0;
NSString *teamDriveId = 0;

kind = [json StringOf: @"kind"];
id = [json StringOf: @"id"];
name = [json StringOf: @"name"];
mimeType = [json StringOf: @"mimeType"];
teamDriveId = [json StringOf: @"teamDriveId"];

NSLog(@"%@",@"Example Completed.");

Sample JSON Request Body

{
    "name": "three_penguins.jpg"
}

Sample JSON Response Body

{
  "kind": "drive#file",
  "id": "1R_70heIyzIAu1_u0prXbYcaIiJRVkgBl",
  "name": "three_penguins.jpg",
  "mimeType": "image/jpeg",
  "teamDriveId": "0AEd3EhGff2SaUk9PVA"
}