Prepare

This is a stand-alone Google App Script.

1. Create a script file on Google Drive
2. Register Toggl Script library (Script ID: 1gu8VZ-7Q1KdYpdIkUsijn_JiP6reGwUC2czBZtACzaJRyWxneM3MvXYY)
   You can see the code for Toggl Script library at _TogglScriptLibrary.gs. The default identifier TogglScript is used in all scripts.
3. Copy & paste codes in toggl.gs[required], dailyCheck.gs[required], and update.gs[optional]. The purpose of each file is described below.
4. Set script properties as described in List of script properties to set before executing script of toggl.gs. Keep currentSpreadsheetId blank.
5. Execute function dailyCheck() in dailyCheck.gs once. Check to see that script property currentSpreadsheetId now has a value.

Files

File Name	Required/Optional	Purpose
toggl.gs	Required	The main script for recording Toggl time entries on Google Spreadsheet and Calendar. Use triggers to periodically execute function togglRecord()
dailyCheck.gs	Required	Function dailyCheck() creates a new Google Spreadsheet at the change of the year for recording Toggle time entries for that year. Use to avoid hitting limitations in the maximum number of cells that can be created in a spreadsheet.
update.gs	Optional	Use function updateToggl() to update time entries. 1) Modify the time entry in spreadsheet, 2) add 1 to the integer in field updateFlag, and 3) execute function updateToggl() to change the original Toggl time entry(ies) and its corresponding Google Calendar event. Note that this function will always delete the original calendar event and create a new one; any changes made on the calendar event without updating the spreadsheet or the Toggl time entry itself will be lost.