This squid scrapes all ERC20 contract deployments on Base and gets their Transfer events. See more examples of requesting data with squids on the showcase page of SQD documentation.
Dependencies: Node.js, Docker, Git.
# 0. Install @subsquid/cli a.k.a. the sqd command globally
npm i -g @subsquid/cli
# 1. Retrieve the template
sqd init base-transfers-erc20 -t https://github.com/subsquid-labs/base-transfers-erc20
cd base-transfers-erc20
# 2. Install dependencies
npm ci
# 3. Start a Postgres database container and detach
sqd up
# 4. Build and start the processor
sqd process
# 5. The command above will block the terminal
# being busy with fetching the chain data,
# transforming and storing it in the target database.
#
# To start the graphql server open the separate terminal
# and run
sqd serveA GraphiQL playground will be available at localhost:4350/graphql.