Feat: improve how ENS information is provided

[brunomenezes]

Summary

These are changes to improve how we check if an Address has ENS information (e.g., name, avatar) to show rather than just Hex addresses. The currently deployed version is very wasteful. It constantly goes into the on-chain to resolve the address name and then looks for an avatar, causing other problems with rate-limiting and quota in extreme cases.

The changes are mainly in the backend. The UI gets data during the first load to be used as a cache and has logic to ask for information during a read miss. The UI has no loading status; it just asks for the information, making it available to the application and other users.

Summary:

• I added a new Backend API to provide initial ENS data to cache
• I added a new Backend API to provide ENS information about a single address. ENS checks are only done on addresses included in the Cartesi Staking ecosystem.
• I Added a new protected backend API that can be called by a Cron service to deal with stale entries. We are using Vercel cron service here for that end. A configured TTL environment variable defines the staleness of an ENS entry.
• I Added Drizzle to work with the libSQL database. Migrations are also included. We're using Turso for Preview and Production environments. We will use libSQL (a fork of SQLite) for local development.
• In the front end, when a read miss happens, it is added to the local cache while a network call is fired; with that behaviour, consecutive network calls to the same address will not occur.
• A vercel.json was added to configure the Cron schedule (currently once daily at midnight UTC). It will be visible in the dashboard once it hits the production environment.
• As usual, I removed unused code and fix broken tests.
• I also added new test cases to cover the new service logic.

Below, there is a diagram of how the system architecture works.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
staking	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jan 6, 2025 1:52am

[github-actions]

Pull Request Test Coverage Report for Build 12407612649

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 77.511%

---

Totals
Change from base Build 12170213581:	0.0%
Covered Lines:	338
Relevant Lines:	401

---

💛 - Coveralls