This repository was archived by the owner on Oct 12, 2023. It is now read-only.
This repository was archived by the owner on Oct 12, 2023. It is now read-only.
On-chain check for metadata change #22
Description
Many NFT collections are first released without any metadata, and then it is "revealed" at some point in the future. This is a critical moment, because it's when users discover if they have a rare item or not. Being able to get the metadata immediately after a reveal is highly coveted amongst NFT tools. Below is a potential way to do it:
- Take the first token in the collection, and keep track of it's tokenURI
- Have a public API to check on-chain if the tokenURI has changed
- This API can have a high global rate limit (e.g. once per second), because it's only one call
- Once a change is detected, save the new URI, and trigger an on-chain metadata index for the full collection
This could potentially be built into the existing collection refresh API. Where it allows this check once per second, but only allows a full refresh every hour.