Ruby

Google Drive - Resumable Upload

See more Google Drive Examples

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

require 'chilkat'

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

http = Chilkat::CkHttp.new()

http.put_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")

json = Chilkat::CkJsonObject.new()
json.UpdateString("name","myZip")

resp = Chilkat::CkHttpResponse.new()
success = http.HttpJson("POST","https://www.googleapis.com/upload/drive/v3/files?uploadType=resumable",json,"application/json",resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

statusCode = resp.get_StatusCode()
if (statusCode != 200)
    print resp.bodyStr() + "\n";
    print "response status = " + statusCode.to_s() + "\n";
    exit
end

# The session URI is in the "Location" response header:
sbSessionUri = Chilkat::CkStringBuilder.new()
sbSessionUri.Append(resp.getHeaderField("Location"))
sessionUri = sbSessionUri.getAsString()
print "Session URI: " + sessionUri + "\n";

# 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.
req = Chilkat::CkHttpRequest.new()

req.put_ContentType("application/zip")
req.put_HttpVerb("PUT")

url = Chilkat::CkUrl.new()
url.ParseUrl(sessionUri)

req.put_Path(url.pathWithQueryParams())
print "Path with Query Param: " + url.pathWithQueryParams() + "\n";

# Specify that the request body is to be streamed directly from a file.
success = req.StreamBodyFromFile("qa_data/zips/big.zip")
if (success == false)
    print req.lastErrorText() + "\n";
    exit
end

success = http.HttpSReq(url.host(),url.get_Port(),url.get_Ssl(),req,resp)
if (success == false)
    print http.lastErrorText() + "\n";
    exit
end

print resp.bodyStr() + "\n";
print "response status = " + resp.get_StatusCode().to_s() + "\n";

# Sample output:

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