(JavaScript) Upload In-Memory Binary Data to Google Cloud Storage

Demonstrates how to upload in-memory binary data to Google Cloud Storage.

Note: This example requires Chilkat v11.0.0 or greater.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

var success = false;

// 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..
var sbToken = new CkStringBuilder();
sbToken.LoadFile("qa_data/tokens/googleCloudStorageAccessToken.txt","utf-8");

// Send a POST equivalent to this curl command.
// The content of the file is contained in the request body.

// curl -X POST --data-binary @[OBJECT] \
//     -H "Authorization: Bearer [OAUTH2_TOKEN]" \
//     -H "Content-Type: [OBJECT_CONTENT_TYPE]" \
//     "https://www.googleapis.com/upload/storage/v1/b/[BUCKET_NAME]/o?uploadType=media&name=[OBJECT_NAME]"

var http = new CkHttp();

// Download a JPG image from the Internet, and then upload this JPG to
// a Google Storage bucket.
var jpgUrl = "https://www.chilkatsoft.com/images/starfish.jpg";

var jpgData = new CkBinData();
success = http.DownloadBd(jpgUrl,jpgData);
if (success == false) {
    console.log(http.LastErrorText);
    return;
}

http.AuthToken = sbToken.GetAsString();

// Construct a URL to upload to an object named "starfish.jpg" in the "chilkat-ocean" bucket.
http.SetUrlVar("bucket_name","chilkat-ocean");
http.SetUrlVar("object_name","starfish.jpg");
var url = "https://www.googleapis.com/upload/storage/v1/b/{$bucket_name}/o?uploadType=media&name={$object_name}";

var resp = new CkHttpResponse();
success = http.HttpBd("POST",url,jpgData,"image/jpeg",resp);
if (success == false) {
    console.log(http.LastErrorText);
    return;
}

var responseCode = resp.StatusCode;
if (responseCode == 401) {
    console.log(resp.BodyStr);
    console.log("If invalid credentials, then it is likely the access token expired.");
    console.log("Your app should automatically fetch a new access token and re-try.");
    return;
}

console.log("Response code: " + responseCode);
console.log("Response body");
console.log(resp.BodyStr);

// A successful response looks like this:
// Response code: 200
// Response body
// {
//  "kind": "storage#object",
//  "id": "chilkat-ocean/starfish.jpg/1502670320090292",
//  "selfLink": "https://www.googleapis.com/storage/v1/b/chilkat-ocean/o/starfish.jpg",
//  "name": "starfish.jpg",
//  "bucket": "chilkat-ocean",
//  "generation": "1502670320090292",
//  "metageneration": "1",
//  "contentType": "image/jpeg",
//  "timeCreated": "2017-08-14T00:25:20.040Z",
//  "updated": "2017-08-14T00:25:20.040Z",
//  "storageClass": "MULTI_REGIONAL",
//  "timeStorageClassUpdated": "2017-08-14T00:25:20.040Z",
//  "size": "6229",
//  "md5Hash": "LpxZ2/JmI2fcl9/dqF2gSA==",
//  "mediaLink": "https://www.googleapis.com/download/storage/v1/b/chilkat-ocean/o/starfish.jpg?generation=1502670320090292&alt=media",
//  "crc32c": "9RjgwQ==",
//  "etag": "CLT5kpW71dUCEAE="
// }