(feat): add support for Nostr tags #2357

Ticket(s) / Related Merge Requests

Issue: #2357 (closed)

Summary of Changes

This MR adds support for saving/querying Nostr events with tags. This allows for querying replies and mentions.

Note: This only applies to native Nostr posts, querying Minds posts based on tags is still WIP.

Testing Considerations

You can test by posting a reply to a post using a Nostr client, such as branle or astral.ninja. You can mention a public key in a post, which should also work correctly.

Since you can query using the #p tag now, notifications should also be working. Albeit somewhat limited as we don't proactively push events to clients yet.

You can also test by sending queries manually using a WebSocket client:

websocat

An example query for replies to an event might look like:

["REQ","subscription-id",{"kinds":[1],"#e":["5ed1b7fff18700914708ff7d43368ff1563162706d0395cf870b2115c64342d5"]}]

And another query for events mentioning a public key:

["REQ","subscription-id",{"kinds":[1],"#p":["f905df7bb8514849d798f31817b36e408377f377bb9cb8c0a3e670c481fa270e"]}]

Deployment Considerations

We will need to add the e_ref and p_ref columns to the nostr_events table prior to deploying:

ALTER TABLE minds.nostr_events
ADD COLUMN e_ref VARCHAR(64) AFTER tags;

ALTER TABLE minds.nostr_events
ADD COLUMN p_ref VARCHAR(64) AFTER e_ref;

Regression Scope

This should affect the Minds engine, specifically the Nostr endpoints.

Platform Affected (web, mobile, etc)

Web

Developer Testing Completed

Deployed changes to sandbox and tested interacting with the relay using the astral client.

Screenshots / Screen Recording

Does this impact

• Localization
• Dark/light mode
• Guest mode

Definition of Done Checklist

• The Acceptance Criteria has been met
• Code is tested: Testing includes unit/spec, E2E/automated and manual testing
• Merge requests description has been filled out