Node.js

Google Drive - Resumable Upload

See more Google Drive Examples

Demonstrates how to do a resumable upload to Google Drive. Node.js

NODEJS_PRELUDE

function chilkatExample() {

    var success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    success = true;

    // This example uses a previously obtained access token having permission for the 
    // Google Drive scope. 
    // See Get Google Drive OAuth2 Access Token

    var http = new chilkat.Http();

    http.AuthToken = "GOOGLE_DRIVE_ACCESS_TOKEN";

    // First we want to initiate the resumable upload.
    // We send a POST to get a session URI, which will be used to upload the file, and resume if needed.

    // Our POST will look like this:

    // POST https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable HTTP/1.1
    // Authorization: Bearer [YOUR_AUTH_TOKEN]          <-- Chilkat automatically adds this header because the AuthToken property was set.
    // Content-Length: 38                               <-- Chilkat will automatically add this header.
    // Content-Type: application/json; charset=UTF-8    <-- This is the type of this POST, and is specified in the call to HttpJson.
    // X-Upload-Content-Type: application/zip           <-- The type of file we'll be uploading
    // X-Upload-Content-Length: 1366807                 <-- The size of the file we'll be uploading
    // 
    // {
    //   "name": "myObject"
    // }

    http.SetRequestHeader("X-Upload-Content-Type","application/zip");
    http.SetRequestHeader("X-Upload-Content-Length","1366807");

    var json = new chilkat.JsonObject();
    json.UpdateString("name","myZip");

    var resp = new chilkat.HttpResponse();
    success = http.HttpJson("POST","https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable",json,"application/json",resp);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    var statusCode = resp.StatusCode;
    if (statusCode !== 200) {
        console.log(resp.BodyStr);
        console.log("response status = " + statusCode);
        return;
    }

    // The session URI is in the "Location" response header:
    var sbSessionUri = new chilkat.StringBuilder();
    sbSessionUri.Append(resp.GetHeaderField("Location"));
    var sessionUri = sbSessionUri.GetAsString();
    console.log("Session URI: " + sessionUri);

    // Here's a sample session URI:  https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable&upload_id=AEnB2UrszR8lDqlo3mtXJw_0rYI_Hi1oVh1NPFcLfoyBq9NcSjk85kFopoZaVEgT38OSmLl0XsObPf4iCSJwHlrOvvIJQ_ckIQ

    // -----------------------------------------------------------------------------
    // The next step is to upload the file using the session URI:

    // We'll send a PUT that looks like this:

    // PUT https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable&upload_id=xa298sd_sdlkj2 HTTP/1.1
    // Content-Length: 1366807
    // Content-Type: application/zip
    // 
    // [BYTES 0-1366806]

    // First remove the X-Upload-Content-Type and X-Upload-Content-Length request headers we specified earlier, so they don't get sent with subsequent requests.
    http.ClearHeaders();

    // Because the file is likely large, we'll use HttpSReq which allows to to pass an HTTP request object where the body can be streamed directly from a file.
    var req = new chilkat.HttpRequest();

    req.ContentType = "application/zip";
    req.HttpVerb = "PUT";

    var url = new chilkat.Url();
    url.ParseUrl(sessionUri);

    req.Path = url.PathWithQueryParams;
    console.log("Path with Query Param: " + url.PathWithQueryParams);

    // Specify that the request body is to be streamed directly from a file.
    success = req.StreamBodyFromFile("qa_data/zips/big.zip");
    if (success == false) {
        console.log(req.LastErrorText);
        return;
    }

    success = http.HttpSReq(url.Host,url.Port,url.Ssl,req,resp);
    if (success == false) {
        console.log(http.LastErrorText);
        return;
    }

    console.log(resp.BodyStr);
    console.log("response status = " + resp.StatusCode);

    // Sample output:

    // {
    //  "kind": "drive#file",
    //  "id": "1rx20i53eurtkVQ-RT7Ry8Ct85PgPYMET",
    //  "name": "myZip",
    //  "mimeType": "application/zip"
    // }
    // 
    // response status = 200

}

chilkatExample();