Categories:
User middleware
Description of user-middleware in charge of the validation of the user’s data
Introduction
user-middleware is the middleware in charge of validating auraId and channel.
This is needed in aura-groot because routing is currently done by channel, so if the request does not include channelId (mandatory only in channelData v3), the user must be checked in aura-authentication-api to obtain the channel of this user.
This middleware throws an error if there is not activity.from.id or if some error is returned by aura-authentication-api
(except 404, because anonymous users should continue the flow).
This middleware also handles a basic user’s cache to avoid unnecessary calls to aura-authentication-api with every user’s request. This cache is implemented using bot UserState.