(Ruby) Upload File from String

Uploads a text file where the contents of the file are contained in a string variable.

See Google Drive Files: create for more details.

Also See Google Drive Multipart Upload for more details.

Chilkat Ruby Downloads install from rubygems.org gem install chilkat or download... Ruby Library for Windows, MacOS, Linux, Alpine Linux

require 'chilkat'

success = true

# It 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.

gAuth = Chilkat::CkAuthGoogle.new()
gAuth.put_AccessToken("GOOGLE-DRIVE-ACCESS-TOKEN")

rest = Chilkat::CkRest.new()

# Connect using TLS.
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.put_PartSelector("1")
rest.AddHeader("Content-Type","application/json; charset=UTF-8")

json = Chilkat::CkJsonObject.new()
json.AppendString("name","helloWorld.txt")
json.AppendString("description","A simple text file that says Hello World.")
json.AppendString("mimeType","text/plain")
rest.SetMultipartBodyString(json.emit())

# The 2nd part is the file content.
# In this case, we'll upload a simple text file containing "Hello World!"
rest.put_PartSelector("2")
rest.AddHeader("Content-Type","text/plain")

fileContents = "Hello World!"
rest.SetMultipartBodyString(fileContents)

jsonResponse = rest.fullRequestMultipart("POST","/upload/drive/v3/files?uploadType=multipart")
if (rest.get_LastMethodSuccess() != true)
    print rest.lastErrorText() + "\n";
    exit
end

# A successful response will have a status code equal to 200.
if (rest.get_ResponseStatusCode() != 200)
    print "response status code = " + rest.get_ResponseStatusCode().to_s() + "\n";
    print "response status text = " + rest.responseStatusText() + "\n";
    print "response header: " + rest.responseHeader() + "\n";
    print "response JSON: " + jsonResponse + "\n";
    exit
end

# Show the JSON response.
json.Load(jsonResponse)

# Show the full JSON response.
json.put_EmitCompact(false)
print json.emit() + "\n";

# A successful response looks like this:
# {
#   "kind": "drive#file",
#   "id": "0B53Q6OSTWYoldmJ0Z3ZqT2x5MFk",
#   "name": "Untitled",
#   "mimeType": "text/plain"
# }

# Get the fileId:
print "fileId: " + json.stringOf("id") + "\n";