Tcl

Upload Application Specific Data

See more Google Drive Examples

Uploads a text file (application specific data) where the contents of the file are contained in a string variable. Tcl

load ./chilkat.dll

set success 0

set success 1

# 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 application specific data scope.
set jsonToken [new_CkJsonObject]

set success [CkJsonObject_LoadFile $jsonToken "qa_data/tokens/googleDriveAppData.json"]

set gAuth [new_CkAuthGoogle]

CkAuthGoogle_put_AccessToken $gAuth [CkJsonObject_stringOf $jsonToken "access_token"]

set rest [new_CkRest]

# Connect using TLS.
set bAutoReconnect 1
set success [CkRest_Connect $rest "www.googleapis.com" 443 1 $bAutoReconnect]

# Provide the authentication credentials (i.e. the access token)
CkRest_SetAuthGoogle $rest $gAuth

# A multipart upload to Google Drive needs a multipart/related Content-Type
CkRest_AddHeader $rest "Content-Type" "multipart/related"

# Specify each part of the request.

# The 1st part is JSON with information about the file.
CkRest_put_PartSelector $rest "1"
CkRest_AddHeader $rest "Content-Type" "application/json; charset=UTF-8"

set json [new_CkJsonObject]

CkJsonObject_put_EmitCompact $json 0

CkJsonObject_UpdateString $json "name" "helloWorld.txt"
CkJsonObject_UpdateString $json "description" "A simple text file that says Hello World."
CkJsonObject_UpdateString $json "mimeType" "text/plain"
# Specifiy the application-specific data folder.
CkJsonObject_UpdateString $json "parents[0]" "appDataFolder"
CkRest_SetMultipartBodyString $rest [CkJsonObject_emit $json]

puts [CkJsonObject_emit $json]

# The JSON looks like this:
# {
#   "name": "helloWorld.txt",
#   "description": "A simple text file that says Hello World.",
#   "mimeType": "text/plain",
#   "parents": [
#     "appDataFolder"
#   ]
# }

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

set fileContents "Hello World!"
CkRest_SetMultipartBodyString $rest $fileContents

set jsonResponse [CkRest_fullRequestMultipart $rest "POST" "/upload/drive/v3/files?uploadType=multipart"]
if {[CkRest_get_LastMethodSuccess $rest] != 1} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkJsonObject $jsonToken
    delete_CkAuthGoogle $gAuth
    delete_CkRest $rest
    delete_CkJsonObject $json
    exit
}

# A successful response will have a status code equal to 200.
if {[CkRest_get_ResponseStatusCode $rest] != 200} then {
    puts "response status code = [CkRest_get_ResponseStatusCode $rest]"
    puts "response status text = [CkRest_responseStatusText $rest]"
    puts "response header: [CkRest_responseHeader $rest]"
    puts "response JSON: $jsonResponse"
    delete_CkJsonObject $jsonToken
    delete_CkAuthGoogle $gAuth
    delete_CkRest $rest
    delete_CkJsonObject $json
    exit
}

# Show the JSON response.
CkJsonObject_Load $json $jsonResponse

# Show the full JSON response.
CkJsonObject_put_EmitCompact $json 0
puts [CkJsonObject_emit $json]

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

# Get the fileId:
puts "fileId: [CkJsonObject_stringOf $json id]"

delete_CkJsonObject $jsonToken
delete_CkAuthGoogle $gAuth
delete_CkRest $rest
delete_CkJsonObject $json