Example Configuration

The Juno binary uses reasonable defaults and can be used without configuration. For basic fine-tuning, the --db-path and --http-port options are usually sufficient.

All available options are in the YAML file below with their default values. Provide the config using the --config <filename> option (Juno looks in $XDG_CONFIG_HOME by default).

Juno can also be configured using command line params by prepending -- to the option name (e.g., --log-level info). Command line params override values in the configuration file.

# Enable colored logs
colour: true

# Path to the database.
# Juno uses `$XDG_DATA_HOME/juno` by default, which is usually something like the value below on Linux.
db-path: /home/<user>/.local/share/juno

# Websocket endpoint of the Ethereum node used to verify the L2 chain.
# If using Infura, it looks something like `wss://mainnet.infura.io/ws/v3/your-infura-project-id`
eth-node: ""

# Enables the HTTP RPC server.
http: false
# Interface on which the HTTP RPC server will listen for requests.
http-host: localhost
# Port on which the HTTP RPC server will listen for requests.
http-port: 6060

# The options below are similar to the HTTP RPC options above.
ws: false # Websocket RPC server
ws-host: localhost
ws-port: 6061
pprof: false
pprof-host: localhost
pprof-port: 6062
metrics: false
metrics-host: localhost
metrics-port: 9090
grpc: false
grpc-host: localhost
grpc-port: 6064

# Options: debug, info, warn, error
log-level: info

# Options: mainnet, goerli, goerli2, integration, sepolia, sepolia-integration
network: mainnet

# How often to fetch the pending block when synced to the head of the chain.
# Provide a duration like 5s (five seconds) or 10m (10 minutes).
# Disabled by default.
pending-poll-interval: 0s

# Experimental p2p options; there is currently no standardized Starknet p2p testnet.
p2p: false # Enable the p2p server
p2p-addr: "" # Source address
p2p-boot-peers: "" # Boot nodes

# Determines the memory allocated for database caching (in MB).
db-cache-size: 8

# The maximum number of VM instances for concurrent RPC calls.
max-vms: 48

# Maximum number of requests to queue for RPC calls.
max-vm-queue: 96

# GRPC URL of a remote Juno node.
remote-db: ""

# Maximum number of blocks to scan in a single starknet_getEvents call.
rpc-max-block-scan: 18446744073709551615