(Node.js) 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 v9.5.0.69 or later because it uses the http.PBinaryBd method.

Install Chilkat for Node.js and Electron using npm at Chilkat npm packages for Node.js Chilkat npm packages for Electron on Windows, Linux, MacOSX, and ARM

var os = require('os');
if (os.platform() == 'win32') {  
    if (os.arch() == 'ia32') {
        var chilkat = require('@chilkat/ck-node21-win-ia32');
    } else {
        var chilkat = require('@chilkat/ck-node21-win64'); 
    }
} else if (os.platform() == 'linux') {
    if (os.arch() == 'arm') {
        var chilkat = require('@chilkat/ck-node21-arm');
    } else if (os.arch() == 'x86') {
        var chilkat = require('@chilkat/ck-node21-linux32');
    } else {
        var chilkat = require('@chilkat/ck-node21-linux64');
    }
} else if (os.platform() == 'darwin') {
    if (os.arch() == 'arm64') {
        var chilkat = require('@chilkat/ck-node21-mac-m1');
    } else {
        var chilkat = require('@chilkat/ck-node21-macosx');
    }
}

function chilkatExample() {

    // 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 chilkat.StringBuilder();
    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 chilkat.Http();

    // 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 chilkat.BinData();
    var success = http.DownloadBd(jpgUrl,jpgData);
    if (success !== true) {
        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}";

    // Note: The PBinaryBd method first appears in Chilkat v9.5.0.69
    // resp: HttpResponse
    var resp = http.PBinaryBd("POST",url,jpgData,"image/jpeg",false,false);
    if (http.LastMethodSuccess == 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="
    // }


}

chilkatExample();