Get Gmail Attachments

Utility app that downloads email attachments from a Gmail inbox filtering for a given search string. You'll need to create a new project in the Google Developers Console and register an OAuth native client (called an installed app in the Google developer console) and download the JSON representation of it and add it to the project with the file name client_secret.json. The JSON should look like this:

{
    "installed": {
        "auth_uri": "https://accounts.google.com/o/oauth2/auth",
        "client_secret": "Get this from the Google developer console",
        "token_uri": "https://accounts.google.com/o/oauth2/token",
        "client_email": "",
        "redirect_uris": [ "urn:ietf:wg:oauth:2.0:oob", "oob" ],
        "client_x509_cert_url": "",
        "client_id": "Get this from the Google developer console",
        "auth_provider_x509_cert_url": "https://www.googleapis.com/oauth2/v1/certs"
    }
}

The project in the Google developer console will need the Gmail API enabled. All this is documented quite well in the Gmail REST API site.

How to use

You can run the app from a console window like so:

get-gmail-attachments "subject:Your bank statement" "c:\bank-statements"

This will get all attachments from all mails in your gmail inbox that match the string Your bank statement in the subject line. You can use all the search operators that Gmail supports. The attachments will get saved into the c:\bank-statements folder.