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Tcl Examples

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(Tcl) 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 Tcl Extension Downloads

Chilkat Tcl Extension Downloads

load ./chilkat.dll

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 scope.

set gAuth [new_CkAuthGoogle]

CkAuthGoogle_put_AccessToken $gAuth "GOOGLE-DRIVE-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_AppendString $json "name" "helloWorld.txt"
CkJsonObject_AppendString $json "description" "A simple text file that says Hello World."
CkJsonObject_AppendString $json "mimeType" "text/plain"
CkRest_SetMultipartBodyString $rest [CkJsonObject_emit $json]

#  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 {[expr [CkRest_get_LastMethodSuccess $rest] != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkAuthGoogle $gAuth
    delete_CkRest $rest
    delete_CkJsonObject $json
    exit
}

#  A successful response will have a status code equal to 200.
if {[expr [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_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_CkAuthGoogle $gAuth
delete_CkRest $rest
delete_CkJsonObject $json

 

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