Fantom

Set up your Fantom Opera node.

Prerequisites#

• Setup your Axelar validator
• Minimum hardware requirements: 4 vCPU+, 100GB+ free storage space.
• MacOS or Ubuntu 18.04+
• Build-essential packages
• Golang
• Official Documentation

Install required dependencies#

In order to build the go-opera, you first need to install all of the required dependencies.

1. Update and install build-essential#

sudo apt-get update
sudo apt-get -y upgrade
sudo apt-get install -y build-essential

2. Install golang#

wget https://dl.google.com/go/go1.17.5.linux-amd64.tar.gz
sudo tar -xvf go1.17.5.linux-amd64.tar.gz -C /usr/local/
export GOROOT=/usr/local/go
export GOPATH=$HOME/go
export PATH=$GOPATH/bin:$GOROOT/bin:$PATH

Install Go-Opera#

1. Checkout and build go-opera#

Use the commands below to clone the go-opera repository, checkout correct version and compile the binary.

git clone https://github.com/Fantom-foundation/go-opera.git
cd go-opera/
git checkout release/1.0.2-rc.5
make

2. Download the genesis file#

cd build/
wget https://opera.fantom.network/testnet.g

3. Start the Fantom Opera node#

In this guide we are using tmux to run the opera-go process in the background. In case you don't have tmux installed, then you can do so with:

apt install tmux

Now create a new session called fantom:

tmux new -s fantom

Once you're inside the newly created tmux session, start the opera-go:

./opera --genesis testnet.g --http --http.addr=0.0.0.0 --http.vhosts="*" --http.corsdomain="*" --ws --ws.origins="*"

Your node will now start to synchronize with the network. It will take several hours before the node is fully synced.

Test your Fantom RPC connection#

Once your node is fully synced, you can run a cURL request to see the status of your node:

curl -H "Content-Type: application/json" -d '{"id":1, "jsonrpc":"2.0", "method": "eth_syncing", "params":[]}' localhost:18545

If the node is successfully synced, the output from above will print {"jsonrpc":"2.0","id":1,"result":false}

EVM RPC endpoint URL#

In order for Axelar Network to connect to your Fantom node, your rpc_addr should be exposed in this format:

http://IP:PORT

Example: http://192.168.192.168:18545