The squid indexes transfers and metadata of the Bored Apes Yacht Club (BAYC) NFTs by watching Transfer event logs. The NFT token metadata is fetching from the URLs stored in the token contract, and it is optimized for batch processing:

• Contract calls are batched using the Multicall contract
• IPFS gateway calls are batched and evenly spread out to avoid rate-limiting. Use private gateways and the MAX_IPFS_REQ_SEC to increase the indexing speed.

One can use this example as a template for scaffolding a new squid project with sqd init:

sqd init my-new-squid --template https://github.com/subsquid-labs/ipfs-example

Prerequisites

• Node v16.x
• Docker
• Squid CLI

Running

Clone the repo and navigate to the root folder.

npm ci
sqd build
# start the database
sqd up
# starts a long-running ETL and blocks the terminal
sqd process

# starts the GraphQL API server at localhost:4350/graphql
sqd serve