(Node.js) Dropbox File Streaming Upload

Upload a file to Drobox using a file stream. This example can upload files up to 150MB. Larger files must be uploaded with an upload session (upload_session/start).

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.

    // A Dropbox access token should have been previously obtained.
    // Dropbox access tokens do not expire.
    // See Dropbox Access Token.

    var rest = new chilkat.Rest();

    // Connect to Dropbox
    var success = rest.Connect("content.dropboxapi.com",443,true,true);
    if (success !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // Add request headers.
    rest.AddHeader("Content-Type","application/octet-stream");
    rest.AddHeader("Authorization","Bearer DROPBOX_ACCESS_TOKEN");

    // The upload "parameters" contained in JSON passed in an HTTP request header.
    // This is the JSON to be added in this example:
    // { 
    //    "path": "/Homework/lit/hamlet.xml",
    //    "mode": "add",
    //    "autorename": true,
    //    "mute": false
    // }

    var json = new chilkat.JsonObject();
    json.AppendString("path","/Homework/lit/hamlet.xml");
    json.AppendString("mode","add");
    json.AppendBool("autorename",true);
    json.AppendBool("mute",false);
    rest.AddHeader("Dropbox-API-Arg",json.Emit());

    // Almost ready to go...
    // Let's setup a file stream to point to a file.
    var fileStream = new chilkat.Stream();
    fileStream.SourceFile = "qa_data/xml/hamlet.xml";

    // Do the upload.  The URL is https://content.dropboxapi.com/2/files/upload.
    // We already connected to content.dropboxapi.com using TLS (i.e. HTTPS),
    // so now we only need to specify the path "/2/files/upload".

    // Note: The file is streamed directly from disk.  (The entire
    // file will not be loaded into memory.)
    var responseStr = rest.FullRequestStream("POST","/2/files/upload",fileStream);
    if (rest.LastMethodSuccess !== true) {
        console.log(rest.LastErrorText);
        return;
    }

    // When successful, Dropbox responds with a 200 response code.
    if (rest.ResponseStatusCode !== 200) {
        // Examine the request/response to see what happened.
        console.log("response status code = " + rest.ResponseStatusCode);
        console.log("response status text = " + rest.ResponseStatusText);
        console.log("response header: " + rest.ResponseHeader);
        console.log("response body (if any): " + responseStr);
        console.log("---");
        console.log("LastRequestStartLine: " + rest.LastRequestStartLine);
        console.log("LastRequestHeader: " + rest.LastRequestHeader);
        return;
    }

    // The response is JSON.
    var jsonResp = new chilkat.JsonObject();
    jsonResp.EmitCompact = false;
    jsonResp.Load(responseStr);

    // Show the JSON response.
    console.log(jsonResp.Emit());

    // Returns JSON that looks like this:
    // { 
    //   "name": "hamlet.xml",
    //   "path_lower": "/homework/lit/hamlet.xml",
    //   "path_display": "/Homework/lit/hamlet.xml",
    //   "id": "id:74FkdeNuyKAAAAAAAAAAAQ",
    //   "client_modified": "2016-06-02T23:19:00Z",
    //   "server_modified": "2016-06-02T23:19:00Z",
    //   "rev": "9482db15f",
    //   "size": 279658
    // }

    // Sample code to get data from the JSON response:
    var size = jsonResp.IntOf("size");
    console.log("size = " + size);

    var rev = jsonResp.StringOf("rev");
    console.log("rev = " + rev);

    var clientModified = jsonResp.StringOf("client_modified");
    var ckdt = new chilkat.CkDateTime();
    ckdt.SetFromTimestamp(clientModified);
    var bLocalTime = true;
    // dt: DtObj
    var dt = ckdt.GetDtObj(bLocalTime);
    console.log(dt.Day + "/" + dt.Month + "/" + dt.Year + " " + dt.Hour + ":" + dt.Minute);


}

chilkatExample();