Auth0 Token Vault handles secure token storage, exchange, and refresh for external providers so you don't have to build it yourself.
Rolling your own OAuth token storage can be a security liability. Token Vault securely stores access and refresh tokens from federated providers and handles exchange and renewal automatically. Connected accounts, refresh exchange, and privileged worker flows included.
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Allows you to submit events to an RSS feed via rest api (http post)
...Once this tool is deployed to a server, your scripts can simply use a HTTP Post to submit events, and users can subscribe to the RSS feed to receive updates, instead of receiving an email for each event.
It is trivial to add a new feed, and using http to submit events means that firewalls are (usually) not a concern.