(Node.js) Upload Binary File from Memory

This example demonstrates how to upload a binary file from memory. It uploads the file to a subdirectory of our choosing.

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() {

    var success = true;

    // 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 
    // Google Drive scope.

    var gAuth = new chilkat.AuthGoogle();
    gAuth.AccessToken = "GOOGLE-DRIVE-ACCESS-TOKEN";

    var rest = new chilkat.Rest();

    // Connect using TLS.
    var bAutoReconnect = true;
    success = rest.Connect("www.googleapis.com",443,true,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","multipart/related");

    // Specify each part of the request.

    // The 1st part is JSON with information about the file.
    rest.PartSelector = "1";
    rest.AddHeader("Content-Type","application/json; charset=UTF-8");

    // Construct the JSON that will contain the metadata about the file data to be uploaded...
    var json = new chilkat.JsonObject();
    json.AppendString("name","hedgehogs.jpg");
    json.AppendString("description","A cute photo of two hedgehogs.");
    json.AppendString("mimeType","image/jpeg");

    // To place the file in a folder, we must add a parents[] array to the JSON
    // and add the folder ID.  
    // In a previous example (see Build Local Metadata Cache
    // we built a local cache to make it easy to lookup file IDs given a file path.
    // Let's find the file ID for the folder "testFolder/abc/123"
    var gdCache = new chilkat.Cache();
    gdCache.Level = 0;
    gdCache.AddRoot("C:/ckCache/googleDrive");

    var folderId = gdCache.FetchText("testFolder/abc/123");
    if (gdCache.LastMethodSuccess !== true) {
        console.log("Filepath not found in cache.");
        return;
    }

    // parents: JsonArray
    var parents = json.AppendArray("parents");
    parents.AddStringAt(-1,folderId);

    rest.SetMultipartBodyString(json.Emit());

    // The 2nd part is the file content, which will contain the binary image data.
    rest.PartSelector = "2";
    rest.AddHeader("Content-Type","image/jpeg");

    var fac = new chilkat.FileAccess();

    // Read a JPG file from the local filesystem.
    jpgBytes = fac.ReadEntireFile("qa_data/jpg/hedgehogs.jpg");

    // Add the bytes to our upload
    rest.SetMultipartBodyBinary(jpgBytes);

    var jsonResponse = rest.FullRequestMultipart("POST","/upload/drive/v3/files?uploadType=multipart");
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // A successful response will have a status code equal to 200.
    if (rest.ResponseStatusCode !== 200) {
        console.log("response status code = " + rest.ResponseStatusCode);
        console.log("response status text = " + rest.ResponseStatusText);
        console.log("response header: " + rest.ResponseHeader);
        console.log("response JSON: " + jsonResponse);
        return;
    }

    // Show the JSON response.
    json.Load(jsonResponse);

    // Show the full JSON response.
    json.EmitCompact = false;
    console.log(json.Emit());

    // A successful response looks like this:
    // {
    //   "kind": "drive#file",
    //   "id": "0B53Q6OSTWYoldmJ0Z3ZqT2x5MFk",
    //   "name": "hedgehogs.jpg",
    //   "mimeType": "image/jpeg"
    // }

    // Get the fileId:
    console.log("fileId: " + json.StringOf("id"));

}

chilkatExample();