alerts digest generation

[boriskozak]

NOTE: we do not have a place to land a user in the app if they were to click a link in an sms. however, much of the alert digest generation back-end can be completed today.

as an allclear pwa user, i want to be notified via sms whenever a new test location comes online in my area.

the following is only meant to serve as a representation of what a solution could look like -- the outcome is all that matters:

set alerts baseline: for each user, store the set of matches and relaxed matches for which they are a fit as of an exact timestamp 't'

perform diff and send as alerts: for each user, store the set of matches and relaxed matches for which they are a fit as of an exact timestamp 't' + 24 hours and where the matches are not in the baseline set

update alerts baseline: for each user, store the set of matches and relaxed matches for which they are a fit as of an exact timestamp 't' + 24 hours

acceptance criteria:

• alerts include/commingle matches and relaxed matches

  • a future release could require just strict matches, but this is not in scope for now

• a digest of alerts are sent, at most, once a day

• the pwa will use SMS (while the native app will use push notifications)

• regardless of new test locations that come online in a 24 hours period, send a single message to each user

• each alert contains the message: "New COVID-19 test locations are available in your area. Click here to view them on AllClear: [insert link]"

• Send messages at 1pm daily per timezone

• The link in the message should bring the user to the maps/test center screen

  • The FE will need to be triggered to quickly fetch test locations added in the last 24 - 48 hours alongside preexisting locations

    - (what is the easiest/most performant way to provide consistent results back to the user? The previous 24 hour window from 1to1pm + any new results in the current 24 hr window as of 1pm?)
    

  • users without active sessions must be able to bypass login

  • Links should expire in 24 hours, before any new alert could be issued

Is it easy to permit a user to unsubscribe by responding to the message with "unsubscribe"?

Aha! Link: https://ilico.aha.io/features/ALLCLEAR-248

[boriskozak]

Comment added by michael brown in Aha! - View

@Joseph Sangiorgio @Brian Parrish Help ID prerequisites for this