user-ops-indexer

User Ops Indexer

User Ops Indexer is a service designed to index, decode and serve user operations as per the ERC-4337 standard.

The service can index 2 official ERC-4337 Entrypoint deployments:

• v0.6 Entrypoint - 0x5FF137D4b0FDCD49DcA30c7CF57E578a026d2789
• v0.7 Entrypoint - 0x0000000071727De22E5E9d8BAf0edAc6f37da032

The service consists of 2 parts:

• Indexer logic - entrypoint contract indexing module. Each entrypoint contract is indexed in a separate tokio async task.
• API server - API module serving data about indexed user operations, accounts, factories, bundlers.

Requirements

No additional dependencies

How to run

Production

Set the following ENVs on the Blockscout instance (configuration):

• MICROSERVICE_ACCOUNT_ABSTRACTION_ENABLED=true
• MICROSERVICE_ACCOUNT_ABSTRACTION_URL={service_url}

And the following ENVs on the Blockscout frontend (configuration):

• NEXT_PUBLIC_HAS_USER_OPS=true

It's recommended to run all the services using docker compose or Blockscout Stack Helm charts.

Locally

For testing and development purposes, service can be run locally, without having an active instance of Blockscout Elixir backend, but it'll need access to the working JSON RPC URL and to the fully indexed Blockscout database (tables blocks and logs in particular).

Configure env as described above and then run the service as following:

cargo run --bin user-ops-indexer-server

Envs

Here, we describe variables specific to this service. Variables common to all services can be found here.

Variable	Required	Description	Default value
USER_OPS_INDEXER__API__MAX_PAGE_SIZE		Max page size for API requests	100
USER_OPS_INDEXER__INDEXER__RPC_URL	true	Indexer RPC URL, should be an archive JSON RPC node with eth, web3 and trace/debug namespaces enabled. Both HTTP and WS protocols are supported. WS is recommended for local RPC nodes, use HTTP otherwise.	ws://127.0.0.1:8546
USER_OPS_INDEXER__INDEXER__CONCURRENCY		Indexer concurrency. Will process up to the configured number of transactions concurrently	10
USER_OPS_INDEXER__INDEXER__ENTRYPOINTS__V06		Enable Entrypoint v0.6 indexer	true
USER_OPS_INDEXER__INDEXER__ENTRYPOINTS__V07		Enable Entrypoint v0.7 indexer	true
USER_OPS_INDEXER__INDEXER__REALTIME__ENABLED		Enable forward realtime indexing of user operations from the latest block	true
USER_OPS_INDEXER__INDEXER__PAST_RPC_LOGS_INDEXER__ENABLED		Enable one-time reindex of missed user operations from recent blocks	false
USER_OPS_INDEXER__INDEXER__PAST_RPC_LOGS_INDEXER__BLOCK_RANGE		Block range width for missed user operations reindex. Will re-index events from a given number of blocks prior the latest block	0
USER_OPS_INDEXER__INDEXER__PAST_DB_LOGS_INDEXER__ENABLED		Enable one-time reindex of missed user operations from core Blockscout DB. Will query relevant events from logs Postgres table	false
USER_OPS_INDEXER__INDEXER__PAST_DB_LOGS_INDEXER__START_BLOCK		Block range start for one-time DB reindex. Use positive number for static block number, or zero/negative number to count backwards from latest	0
USER_OPS_INDEXER__INDEXER__PAST_DB_LOGS_INDEXER__END_BLOCK		Block range end for one-time DB reindex. Use positive number for static block number, or zero/negative number to count backwards from latest	0
USER_OPS_INDEXER__DATABASE__CONNECT__URL	true	Postgres connect URL to Blockscout DB with read/write access	(empty)
USER_OPS_INDEXER__DATABASE__CREATE_DATABASE		Create database if doesn't exist	false
USER_OPS_INDEXER__DATABASE__RUN_MIGRATIONS		Run database migrations	false

Links

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