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Startup Arguments

Required Gateway Arguments

The following parameters are required for Gateway operation. Each argument is prefixed with two dashes. Parameters are indicated by chevrons, e.g., “< parameter >”, and defaults are noted when available.

Parameter Description Example
blockchain-protocol Blockchain protocol of the blockchain node Ethereum
blockchain-ip IP address of the blockchain node. It is required unless using the enode argument
enode Enode of the blockchain node with format “enode://public_key_of_the_blockchain_node@ip_of_blockchain_node:port”. It is required unless using the blockchain-ip argument
node-public-key (Ethereum only) Node ID of your Ethereum node. You can retrieve your node ID using the Ethereum rpc command admin.nodeInfo 50ff319…b35b76

Optional Gateway Arguments

Below is a list of optional command line arguments accepted by the bloXroute Gateway. Each argument is prefixed with two dashes and is followed by a parameter where applicable. For example: --external-ip

Parameter Description Default Example
blockchain-port Port location of the blockchain node. Bitcoin Cash: 8333 Ethereum: 30303 30303
blockchain-network Blockchain network of the blockchain node the Gateway will connect to. This is mainly used for users that are using the bloXroute testnet. To use something other than the Mainnet, please contact bloXroute support for instructions. Mainnet Mainnet
external-ip Public IP address of the Gateway. Please specify your IP address using external-ip if the Gateway cannot access the url “http://checkip.dyndns.org/” to automatically detect its IP address. N/A
external-port External port is the port on which the Gateway can receive external connections from other Gateways in the network. If using the enode parameter, the port specified in the enode overrides this one. 1801 1801
rpc-host Gateway RPC server host.
rpc-port Gateway RPC server port. 28332 7007
ca-cert-url Location of the public Gateway certificate to allow it to connect to the BDN. Do not change these without instructions from bloXroute Support. https://certificates.blxrbdn.com/ca
private-ssl-base-url Location of the private Gateway certificate for accounts that registered and obtained private certificates. It can be a local or remote directory. The format is URI https://certificates.blxrbdn.com file:///home/[user]/gateway/
continent Continent where the Gateway is running. Valid continent values are NA (North America), SA (South and Central America), EU (Europe), OC (Oceania), AS (Asia), AF (Africa), AN (Antarctica). N/A AS
country The country of the Gateway. N/A China
hostname Hostname the Gateway is running on. If not specified, the Gateway will query the operating system for hostname machine hostname gateway.hostname.com
data-dir Path to store configuration, status and log files. ~/Library/bloXroute on Mac, ~/bloXroute on Linux /home/[user]/gateway/
log-format Format of the log output. May be set to JSON or PLAIN PLAIN JSON
log-level Set the log level of the Gateway. Possible values: TRACE, DEBUG, INFO, WARN, ERROR, FATAL, STATS, OFF. Default is INFO INFO DEBUG
sdn-url bloXroute Control Plane endpoint to the Mainnet URL. This parameter should only be used by users who connect to the bloXroute testnet. Please contact bloXroute support for instructions. https://bdn-api.blxrbdn.com
transaction-pool-memory-limit Maximum size of transactions to keep in memory pool (MB) N/A 50000
thread-pool-parallelism-degree Number of threads to use when running tasks on a concurrent thread pool when the extension module is active. The default is determined as the number of CPUs minus 1. [Number of CPUs] – 1 4
tx-mem-pool-bucket-size In order to efficiently iterate the mempool concurrently, the Gateway splits into buckets. This parameter sets the size of each bucket of the transaction mempool. 10000 10000
peer-gateways Optional gateway peer ip/ports that Gateway should always be connected to. Should be in the format ip1:port1,ip2:port2,… N/A,
min-peer-gateways Minimum number of peer Gateways, when connection number falls below this number, the Gateway contacts Control Plane for additional peers. 1 2
require-blockchain-connection When true, the Gateway will exit if the connection to the blockchain node is down for more than 30 minutes. True True
ipc Enable new transaction feed using ipc protocol. False True
ipc-file The file that will be used by the new transaction feed with the ipc protocol. bxgateway.ipc bxgateway.ipc
ws Enable new transaction feed using web socket protocol. False True
ws-host New transaction feed web socket server host.
ws-port New transaction feed web socket server port. 28333 28333

Ethereum Specific Arguments

Parameter Description Default Example
private-key Private key for encrypted communication with Ethereum node. This argument is optional, and the Gateway will generate a random private key if one is not provided. N/A 294549…97dfba3
genesis-hash Genesis block hash of Ethereum network. Optional, a default is provided. d4e56740f…cb8fa3 d4e56740f…cb8fa3
eth-ws-uri Ethereum websockets endpoint for syncing transaction content. You need to configure your Ethereum node to enable the Ethereum websockets . For more information see Enable Ethereum Websocket. N/A ws://

Bitcoin Specific Arguments

Parameter Description Default Example
blockchain-version Blockchain protocol version is provided to the blockchain node to indicate functionality the Gateway supports as a peer. 70015 70015
blockchain-nonce Blockchain nonce is a number that is used during the Gateway handshake with a bitcoin node. If none is provided, a random number is used. random number 982345907