OAuth2 server [Node.JS]

Question

Which library can I use to implement OAuth2 authorization and refresh token in NodeJS for Google Smart Home Action? I tried using passport-oauth2 and passport-google-oauth20 but cant get my desired results

Answer 1

The account linking guide indicates the features your OAuth server needs to implement in order to successfully link users of your smart home Action with Google. Mainly, you need have a server that implements the authorization and token exchange endpoints for the user accounts you maintain.

The libraries you have mentioned seem to assist with implementing client-side authentication of requests based on various identity providers rather than an OAuth server. It seems the developer of Passport also maintains a companion package called OAuth2orize which may be able to help you.

NOTE: I cannot vouch for whether this library will seamlessly integrate with Google Assistant account linking. Simply pointing out the infrastructure required for an OAuth server vs. client.