How to send email to people via Google Plus API?

Question

According to Google Plus, you can e-mail Google Plus users within your circle: refer this

• How can you use the Google Plus API (or Gmail API) to send an e-mail to a user within your circle, given you have their user ID?
• If you cannot do this, how can you send them a message via hangouts?

Answer 1

You should follow the official Gmail API reference guide here.

From the docs:

There are two ways to send email using the Gmail API:

• You can send it directly using the messages.send method.

• You can send it from a draft, using the drafts.send method.

Emails are sent as base64url encoded strings within the raw property of a message resource. The high-level workflow to send an email is to:

Create the email content in some convenient way and encode it as a base64url string. Create a new message resource and set its raw property to the base64url string you just created. Call messages.send, or, if sending a draft, drafts.send to send the message.

The arguments you'll need to provide in order to send an email through the API are the following:

Args:
    - service: Authorized Gmail API service instance.
    - user_id: User's email address. The special value "me"
               can be used to indicate the authenticated user.
    - message: Message to be sent.