Gmail notify notifies you of new mail in Gmail.

• Notifies using Windows notifications.
• Stand-alone service. You don't need Chrome instance.
• Supported multi account.

1. Prepare notify.exe, get-token.exe and config.json.

cd cmd/notify; go build -ldflags -H=windowsgui 
cd cmd/get-token; go build 

2. Download Google user's credentials.json from google ...by clicking [Enable the Gmail API] button. And save it in a sub directory of the directory that contains notify.exe. The name of the directory can be anything you want.

3. Create token.json.

get-token.exe ENTRY-DIRECTORY

Follow the displayed link, and type code to create token.json.

Repeat steps #2-#3 for all the accounts you need. Once executed, notify.exe creates working file named unread.json. Finally, directory structure looks this:

[gmail-notify]
    config.json
    get-token.exe
    notify.exe
    notify.log    
    [ENTRY DIRECTORY 1]
        credentials.json
        token.json
        unread.json
    [ENTRY DIRECTORY 2]
        credentials.json
        token.json
        unread.json
    :
    [ENTRY DIRECTORY x]
        credentials.json
        token.json
        unread.json

If it works, add an entry to the Windows task scheduler.

• Triggers : At log on
• Actions : Start a program (notify.exe), Start in same directory with notify.exe.