Dymension

Home of the RollApps

Dymension is a network of easily deployable and lightning fast modular blockchains called RollApps. Dymension allows anyone to build and deploy their own consensus-free blockchain, a RollApp.

• Website https://dymension.xyz/

• Docs https://docs.dymension.xyz/

• Discord https://discord.com/invite/dymension

• Twitter https://twitter.com/dymension

• Github https://github.com/dymensionxyz

Mainnet network:

Chain ID	Latest Version	Wasm
dymension_1100-1	v3.1.0	OFF

Endpoints

Public endpoints

• REST API https://dymension-api.lefey.tech

• RPC https://dymension-rpc.lefey.tech

• JSON RPC https://dymension-jsonrpc.lefey.tech

• GRPC https://dymension-grpc.lefey.tech:443

Installation

1.Install dependencies

Basic utils

sudo apt update && sudo apt upgrade -y
sudo apt install curl git jq lz4 build-essential -y

Install GO 1.21.6

sudo rm -rf /usr/local/go
curl -sL https://go.dev/dl/go1.21.6.linux-amd64.tar.gz | sudo tar -xzf - -C /usr/local
echo "export PATH=$PATH:/usr/local/go/bin:$HOME/go/bin" >> $HOME/.bash_profile 
source $HOME/.bash_profile
go version

2.Build node binary

Clone sources and build

cd && git clone https://github.com/dymensionxyz/dymension.git
cd dymension
git checkout v3.1.0
make install

Check version and commit

dymd version --long | grep -e commit -e version

commit: b0e997d6b921666b7c4da4e121a87a2652ed0d2a

version: v3.1.0

3. Config node

Initial config

dymd init <moniker_name> --chain-id=dymension_1100-1
dymd config chain-id dymension_1100-1

Download and check genesis

wget https://github.com/dymensionxyz/networks/raw/main/mainnet/dymension/genesis.json -O $HOME/.dymension/config/genesis.json
sha256sum $HOME/.dymension/config/genesis.json

44a4440d7515cd3b7245bc8ed0ccb1e9ecadd8f24da5508f325f9df0509f916b

Minimum gas price/Peers/Filter peers/Max peers

sed -i.bak -e "s/^minimum-gas-prices *=.*/minimum-gas-prices = \"0.0adym\"/;" ~/.dymension/config/app.toml
external_address=$(wget -qO- eth0.me) 
sed -i.bak -e "s/^external_address *=.*/external_address = \"$external_address:26656\"/" $HOME/.dymension/config/config.toml
peers="a53c0884c5225f13a99e0af9ef04cd50facee668@84.203.117.234:26691,879aca1f688346ca7a3901aa1e9fc62f48112f01@65.109.124.111:26656"
sed -i.bak -e "s/^persistent_peers *=.*/persistent_peers = \"$peers\"/" $HOME/.dymension/config/config.toml
seeds="[e-mail]:25155,[e-mail]:29202,[e-mail]:20556,[e-mail]:40656,[e-mail]:26656,[e-mail]:14659"
sed -i.bak -e "s/^seeds =.*/seeds = \"$seeds\"/" $HOME/.dymension/config/config.toml
sed -i 's/max_num_inbound_peers =.*/max_num_inbound_peers = 50/g' $HOME/.dymension/config/config.toml
sed -i 's/max_num_outbound_peers =.*/max_num_outbound_peers = 50/g' $HOME/.dymension/config/config.toml

Pruning (optional)

pruning="custom"
pruning_keep_recent="1000"
pruning_keep_every="0"
pruning_interval="10"
sed -i -e "s/^pruning *=.*/pruning = \"$pruning\"/" $HOME/.dymension/config/app.toml
sed -i -e "s/^pruning-keep-recent *=.*/pruning-keep-recent = \"$pruning_keep_recent\"/" $HOME/.dymension/config/app.toml
sed -i -e "s/^pruning-keep-every *=.*/pruning-keep-every = \"$pruning_keep_every\"/" $HOME/.dymension/config/app.toml
sed -i -e "s/^pruning-interval *=.*/pruning-interval = \"$pruning_interval\"/" $HOME/.dymension/config/app.toml

Disable indexer (optional)

indexer="null" &&
sed -i -e "s/^indexer *=.*/indexer = \"$indexer\"/" $HOME/.dymension/config/config.toml

Create service file

sudo tee /etc/systemd/system/dymd.service > /dev/null <<EOF
[Unit]
Description=dymd
After=network-online.target

[Service]
User=$USER
ExecStart=$(which dymd) start
Restart=on-failure
RestartSec=3
LimitNOFILE=65535

[Install]
WantedBy=multi-user.target
EOF

Start node

sudo systemctl daemon-reload
sudo systemctl enable dymd
sudo systemctl restart dymd && journalctl -fu dymd -o cat

Peers

Peer

[e-mail]:27656

Seed node

[e-mail]:10656

Addrbook

curl -s https://snapshots.lefey.tech/dymension/addrbook.json > $HOME/.dymension/config/addrbook.json

Statesync

1. Stop node and reset the data

sudo systemctl stop dymd.service
cp $HOME/.dymension/data/priv_validator_state.json $HOME/.dymension/priv_validator_state.json.backup
dymd tendermint unsafe-reset-all --keep-addr-book --home $HOME/.dymension
mv $HOME/.dymension/priv_validator_state.json.backup $HOME/.dymension/data/priv_validator_state.json

2.Configure the state sync information

SNAP_RPC="https://dymension-rpc.lefey.tech:443"
SEEDS="[e-mail]:10656"
LATEST_HEIGHT=$(curl -s $SNAP_RPC/block | jq -r .result.block.header.height)
BLOCK_HEIGHT=$((LATEST_HEIGHT - 1000))
TRUST_HASH=$(curl -s "$SNAP_RPC/block?height=$BLOCK_HEIGHT" | jq -r .result.block_id.hash)

echo $LATEST_HEIGHT $BLOCK_HEIGHT $TRUST_HASH

sed -i \
-e "s|^enable *=.*|enable = true|" \
-e "s|^rpc_servers *=.*|rpc_servers = \"$SNAP_RPC,$SNAP_RPC\"|" \
-e "s|^trust_height *=.*|trust_height = $BLOCK_HEIGHT|" \
-e "s|^trust_hash *=.*|trust_hash = \"$TRUST_HASH\"|" \
-e "s|^seeds *=.*|seeds = \"$SEEDS\"|" $HOME/.dymension/config/config.toml

3.Start node

sudo systemctl start dymd && journalctl -fu dymd -o cat