Rust Requires Chilkat v11.0.0+

Google Drive - Resumable Upload

See more Google Drive Examples

Demonstrates how to do a resumable upload to Google Drive. Rust

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

let _ = true;

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

let http = chilkat::Http::new();

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

let json = chilkat::JsonObject::new();
let _ = json.update_string("name", "myZip");

let resp = chilkat::HttpResponse::new();
if http.http_json("POST", "https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable", &json, "application/json", &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

let status_code = resp.status_code();
if status_code != 200 {
    println!("{}", resp.body_str());
    println!("response status = {}", status_code);
    return;
}

// The session URI is in the "Location" response header:
let sb_session_uri = chilkat::StringBuilder::new();
let _ = sb_session_uri.append(&resp.get_header_field("Location").unwrap_or_default());
let session_uri = sb_session_uri.get_as_string().unwrap_or_default();
println!("Session URI: {}", session_uri);

// 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.clear_headers();

// 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.
let req = chilkat::HttpRequest::new();

req.set_content_type("application/zip");
req.set_http_verb("PUT");

let url = chilkat::Url::new();
let _ = url.parse_url(&session_uri);

req.set_path(&url.path_with_query_params());
println!("Path with Query Param: {}", url.path_with_query_params());

// Specify that the request body is to be streamed directly from a file.
if req.stream_body_from_file("qa_data/zips/big.zip").is_err() {
    println!("{}", req.last_error_text());
    return;
}

if http.http_s_req(&url.host(), url.port(), url.ssl(), &req, &resp).is_err() {
    println!("{}", http.last_error_text());
    return;
}

println!("{}", resp.body_str());
println!("response status = {}", resp.status_code());

// Sample output:

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