Tcl Google Drive: Get Starting pageToken for Listing Future Changes

Back to Index

Gets the starting pageToken for listing future changes.

Documentation: https://developers.google.com/drive/v3/reference/changes/getStartPageToken

load ./chilkat.dll

set rest [new_CkRest]

#   Provide a previously obtained OAuth2 access token.
set oauth2 [new_CkOAuth2]

CkOAuth2_put_AccessToken $oauth2 "OAUTH2_ACCESS_TOKEN"
CkRest_SetAuthOAuth2 $rest $oauth2

set success [CkRest_Connect $rest "www.googleapis.com" 443 1 1]
if {[expr $success != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkOAuth2 $oauth2
    exit
}

CkRest_AddQueryParam $rest "teamDriveId" "0AEd3EhGff2SaUk9PVA"
CkRest_AddQueryParam $rest "supportsTeamDrives" "true"

set sbJson [new_CkStringBuilder]

set success [CkRest_FullRequestNoBodySb $rest "GET" "/drive/v3/changes/startPageToken" $sbJson]
if {[expr $success != 1]} then {
    puts [CkRest_lastErrorText $rest]
    delete_CkRest $rest
    delete_CkOAuth2 $oauth2
    delete_CkStringBuilder $sbJson
    exit
}

if {[expr [CkRest_ResponseStatusCode $rest] != 200]} then {
    puts "Received error response code: [CkRest_ResponseStatusCode $rest]"
    puts "Response body:"
    puts [CkStringBuilder_getAsString $sbJson]
    delete_CkRest $rest
    delete_CkOAuth2 $oauth2
    delete_CkStringBuilder $sbJson
    exit
}

set json [new_CkJsonObject]

CkJsonObject_LoadSb $json $sbJson

#  The following code parses the JSON response.
#  A sample JSON response is shown below the sample code.

set kind [CkJsonObject_stringOf $json "kind"]
set startPageToken [CkJsonObject_stringOf $json "startPageToken"]

puts "Example Completed."

delete_CkRest $rest
delete_CkOAuth2 $oauth2
delete_CkStringBuilder $sbJson
delete_CkJsonObject $json

Sample JSON Response Body

{
  "kind": "drive#startPageToken",
  "startPageToken": "13"
}