Search Functionality

[owocki]

Requested at https://gov.optimism.io/t/easyretropgf-xyz-run-your-own-optimism-style-rpgf-round/7359/5

[carlbarrdahl]

To enable search within the metadata we would need to either:

1. Build an indexer that downloads all the Attestations and their metadata

This could be done like this:

• Function to query EAS graphql for all the relevant attestations
• Download the metadata for each attestation
• Store in a Postgres database
• Use alchemy custom webhooks to listen to Attested and Revoked events on the EAS contract and update db accordingly

2. Index while metadata is fetched

• When a metadata request is made, store the results in a postgres table (indexKey, title, description, type)
• Create an endpoint to query this table

This will only index the metadata that has been fetched by a user.
If an attestation is revoked, how would this db be updated?

It might be possible to create a custom cache for https://github.com/mistval/node-fetch-cache that does this in a clean way.

3. Use an existing indexer

• For example https://spec.dev

Option 1 is more complex and manages a copy of the EAS db.
Option 2 still uses EAS as source of truth but could be challenging to remove revoked projects or lists.
Option 3 might be the cleanest solution but introduces an external dependency