(Objective-C) Create a Google Cloud Storage Bucket

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Demonstrates how to create a Google Cloud Storage bucket.

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#import <CkoStringBuilder.h>
#import <CkoJsonObject.h>
#import <CkoHttp.h>
#import <NSString.h>
#import <CkoHttpResponse.h>
#import <CkoDateTime.h>

// This example 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 
// scope "https://www.googleapis.com/auth/cloud-platform"

// In this example, Get Google Cloud Storage OAuth2 Access Token, 
// the service account access token was saved to a text file.  This example fetches the access token from the file..
CkoStringBuilder *sbToken = [[CkoStringBuilder alloc] init];
[sbToken LoadFile: @"qa_data/tokens/googleCloudStorageAccessToken.txt" charset: @"utf-8"];

// ---- Step 1
// Create a JSON that contains the following information, replacing [VALUES_IN_BRACKETS] with the appropriate values:

// {
//   "name": "[BUCKET_NAME]",
//   "location": "[BUCKET_LOCATION]",
//   "storageClass": "[STORAGE_CLASS]"
// }

CkoJsonObject *json = [[CkoJsonObject alloc] init];
[json UpdateString: @"name" value: @"chilkat-ocean"];
[json UpdateString: @"location" value: @"us"];
[json UpdateString: @"storageClass" value: @"multi_regional"];

// ---- Step 2
// Send a POST equivalent to this curl command

// curl -X POST --data-binary @[JSON_FILE_NAME].json \
//      -H "Authorization: Bearer [OAUTH2_TOKEN]" \
//      -H "Content-Type: application/json" \
//      "https://www.googleapis.com/storage/v1/b?project=[PROJECT_ID]"

CkoHttp *http = [[CkoHttp alloc] init];
http.AuthToken = [sbToken GetAsString];

[http SetUrlVar: @"project_id" value: @"chilkat-176611"];
NSString *url = @"https://www.googleapis.com/storage/v1/b?project={$project_id}";
CkoHttpResponse *resp = [http PostJson3: url contentType: @"application/json" json: json];
if (http.LastMethodSuccess == NO) {
    NSLog(@"%@",http.LastErrorText);
    return;
}

int responseCode = [resp.StatusCode intValue];
if (responseCode == 401) {
    NSLog(@"%@",resp.BodyStr);
    NSLog(@"%@",@"If invalid credentials, then it is likely the access token expired.");
    NSLog(@"%@",@"Your app should automatically fetch a new access token and re-try.");

    return;
}

NSLog(@"%@%d",@"Response code: ",responseCode);
NSLog(@"%@",@"Response body");
NSLog(@"%@",resp.BodyStr);

// A successful response looks like this:
// Response code: 200
// Response body
// {
//  "kind": "storage#bucket",
//  "id": "chilkat-ocean",
//  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean",
//  "projectNumber": "933037264567",
//  "name": "chilkat-ocean",
//  "timeCreated": "2017-08-13T12:27:10.811Z",
//  "updated": "2017-08-13T12:27:10.811Z",
//  "metageneration": "1",
//  "location": "US",
//  "storageClass": "MULTI_REGIONAL",
//  "etag": "CAE="
// }
// 

// Parse the JSON response:
CkoJsonObject *jsonResp = [[CkoJsonObject alloc] init];
[jsonResp Load: resp.BodyStr];

NSLog(@"%@%@",@"name: ",[jsonResp StringOf: @"name"]);
NSLog(@"%@%@",@"timeCreated: ",[jsonResp StringOf: @"timeCreated"]);

// Parse the date/time created.
CkoDateTime *dt = [[CkoDateTime alloc] init];
[dt SetFromTimestamp: [jsonResp StringOf: @"timeCreated"]];
// ...