EVM-compatible chain secured by the Lachesis consensus algorithm.
Building Xpense requires both a Go (version 1.21 or later) and a C compiler. You can install them using your favourite package manager. Once the dependencies are installed, run:
make all
The build output are build/xpensed
and build/xpensetool
executables.
You will need a genesis file to join a network. Please check the following
site for details how to get one: https://github.com/Fantom-foundation/lachesis_launch
Once you obtain the most recent genesis file available, you need to use the xpensetool
create a starting DB.
xpensetool --datadir=<target DB path> genesis <path to the genesis file>
Going through all the possible command line flags is out of scope here,
but we've enumerated a few common parameter combos to get you up to speed quickly
on how you can run your own xpensed
instance.
Launching xpensed
readonly (non-validator) node for network specified by the genesis file:
xpensed --datadir=<DB path>
As an alternative to passing the numerous flags to the xpensed
binary, you can also pass a
configuration file via:
xpensed --datadir=<DB path> --config /path/to/your/config.toml
To get an idea how the file should look like you can use the dumpconfig
subcommand to
export the default configuration:
xpensetool --datadir=<DB path> dumpconfig
New validator private key may be created with xpensetool --datadir=<DB path> validator new
command.
To launch a validator, you have to use --validator.id
and --validator.pubkey
flags to enable
events emitter. Check the Fantom Documentation for the detailed process
of obtaining the validator ID and registering your initial stake.
xpensed --datadir=<DB path> --validator.id=YOUR_ID --validator.pubkey=0xYOUR_PUBKEY
xpensed
will prompt you for a password to decrypt your validator private key. Optionally, you can
specify password with a file using --validator.password
flag.
Optionally you can specify your public IP to straighten connectivity of the network. Ensure your TCP/UDP p2p port (5050 by default) isn't blocked by your firewall.
xpensed --datadir=<DB path> --nat=extip:1.2.3.4