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VechainThor Usage

Table of Contents

Running from source

  • To install the thor binary, follow the instructions in the build guide.

Connect to vechain's mainnet:

bin/thor --network main

Connect to vechain's testnet:

bin/thor --network test

Start a custom network:

bin/thor --network <custom-net-genesis.json>

An example genesis config file can be found at genesis/example.json.

Running a discovery node

  • To install the disco binary, follow the instructions in the build guide.

Start a discovery node:

disco

Output:

Running enode://e32e5960781ce0b43d8c2952eeea4b95e286b1bb5f8c1f0c9f09983ba7141d2fdd7dfbec798aefb30dcd8c3b9b7cda8e9a94396a0192bfa54ab285c2cec515ab@[::]:55555

Running with Docker

Docker is one quick way for running a vechain node:

docker run -d\
  -v {path-to-your-data-directory}/.org.vechain.thor:/home/thor/.org.vechain.thor\
  -p 127.0.0.1:8669:8669 -p 11235:11235 -p 11235:11235/udp\
  --name thor-node vechain/thor --network test

Notes:

  • Add the --api-addr 0.0.0.0:8669 flag if you want other containers and/or hosts to have access to the RESTful API. Thor binds to localhost by default and it will not accept requests outside the container itself without the flag._

  • Release v2.0.4 changed the default user from root (UID: 0) to thor (UID: 1000). Ensure that UID 1000 has rwx permissions on the data directory of the docker host. You can do that with ACL sudo setfacl -R -m u:1000:rwx {path-to-your-data-directory}, or update ownership with sudo chown -R 1000:1000 {path-to-your-data-directory}.

Docker Compose

A docker-compose.yml file is provided for convenience. It will create a container with the same configuration as the command above.

version: '3'

services:
  thor-node:
    image: vechain/thor
    container_name: thor-node
    command: --network test --api-addr 0.0.0.0:8669
    volumes:
      - thor-data:/home/thor
    ports:
      - "8669:8669"
      - "11235:11235"
      - "11235:11235/udp"

volumes:
  thor-data:

Sub-commands

Thor Solo

thor solo is a sub-command for running a single node in a standalone mode. It is useful for testing and development.

# create new block when there is pending transaction
bin/thor solo --on-demand

# save blockchain data to disk(default to memory)
bin/thor solo --persist

# two options can work together
bin/thor solo --persist --on-demand

Master Key

thor master-key is a sub-command for managing the node's master key.

# print the master address
bin/thor master-key

# export master key to keystore
bin/thor master-key --export > keystore.json


# import master key from keystore
cat keystore.json | bin/thor master-key --import

Command line options

To show usages of all command line options:

bin/thor -h
Flag Description
--network The network to join (main|test) or path to the genesis file
--data-dir Directory for blockchain databases
--beneficiary Address for block rewards
--api-addr API service listening address (default: "localhost:8669")
--api-cors Comma-separated list of domains from which to accept cross-origin requests to API
--api-timeout API request timeout value in milliseconds (default: 10000)
--api-call-gas-limit Limit contract call gas (default: 50000000)
--api-backtrace-limit Limit the distance between 'position' and best block for subscriptions APIs (default: 1000)
--api-allow-custom-tracer Allow custom JS tracer to be used for the tracer API
--api-allowed-tracers Comma-separated list of allowed tracers (default: "none")
--enable-api-logs Enables API requests logging
--api-logs-limit Limit the number of logs returned by /logs API (default: 1000)
--verbosity Log verbosity (0-9) (default: 3)
--max-peers Maximum number of P2P network peers (P2P network disabled if set to 0) (default: 25)
--p2p-port P2P network listening port (default: 11235)
--nat Port mapping mechanism (any|none|upnp|pmp|extip:) (default: "any")
--bootnode Comma separated list of bootnode IDs
--target-gas-limit Target block gas limit (adaptive if set to 0) (default: 0)
--pprof Turn on go-pprof
--skip-logs Skip writing event|transfer logs (/logs API will be disabled)
--cache Megabytes of RAM allocated to trie nodes cache (default: 4096)
--disable-pruner Disable state pruner to keep all history
--enable-metrics Enables the metrics server
--metrics-addr Metrics service listening address
--enable-admin Enables the admin server
--admin-addr Admin service listening address
--txpool-limit-per-account Transaction pool size limit per account
--help, -h Show help
--version, -v Print the version

Thor Solo Flags

Flag Description
--genesis Path to genesis file(default: builtin devnet)
--on-demand Create new block when there is pending transaction
--block-interval Choose a block interval in seconds (default 10s)
--persist Save blockchain data to disk(default to memory)
--gas-limit Gas limit for each block
--txpool-limit Transaction pool size limit

Discovery Node Flags

Flag Description
--addr The to listen on (default: ":55555").
--keyfile The path to the private key file of the discovery node.
--keyhex The hex-encoded private key of the discovery node.
--nat The port mapping mechanism (any | none | upnp | pmp | extip:) (default: "none")
--netrestrict Restrict network communication to the given IP networks (CIDR masks)
--verbosity The log level for the discovery node (0-9) (default: 2).
--help Show the help message for the discovery node.
--version Show the version of the discovery node.

Open API Documentation

Once thor has started, the online OpenAPI documentation can be accessed in your browser. e.g. http://localhost:8669/ by default.

Thorest