start_node.sh

#!/bin/bash

# ┌───────────────────────────┐
# │ Developed by ladopixel    │
# │ Execute Ergo node v5.0.13 │
# └───────────────────────────┘


# I define my key for the configuration file
my_key="holaaa"


# I define some colors for the messages
texto_verde="\033[32m"
texto_rojo="\033[31m"
reset="\033[0m"


# ERGO
echo
echo " ███████"
echo " █"
echo "  █"
echo "   █"
echo "  █"
echo " █"
echo " ███████ ErgoPlatform.org"
echo


# I verify that a Java version exists in my computer, if it does not exist I show a message and exit.
if ! type -p java > /dev/null; then
    echo -e "${texto_rojo} [-] Java is not installed on your system, you need to install it. ${reset}"
    exit 1
fi


# I go to the user's home directory
cd || exit


# The first parameter ($1) is to indicate the name of the directory where everything will be installed, 
# if you do not specify it, it will automatically create a directory in the user's home ergo_node.
if [ $# -gt 0 ]; then
    directory=$1
else
    directory="ergo_node"
fi

if [ ! -d "$directory" ]; then
    mkdir -v "$directory" > /dev/null
    echo -e "${texto_verde}[+] Ergo directory successfully created ${reset}"
else
    echo -e "${texto_rojo}[!] The directory already exists, impossible to create another one with the same name ${reset}"
fi


# I download the node version
url_ergo="https://github.com/ergoplatform/ergo/releases/download/v5.0.13"
jar_file="ergo-5.0.13.jar"
if [ ! -f "$HOME/$directory/$jar_file" ]; then
    curl -LJO $url_ergo/$jar_file 
    mv "$HOME"/$jar_file "$HOME/$directory"
    echo -e "${texto_verde}[+] The node has been successfully downloaded ${reset}"
else
    echo -e "${texto_rojo}[!] You already have an available node ${reset}"
fi


# I create the initial ergo.conf file.
if [ ! -f "$HOME/$directory/ergo.conf" ]; then
    ergo_conf="ergo {"
    echo "$ergo_conf" > "$HOME/$directory/ergo.conf"
    ergo_conf="directory = \${ergo.directory}/$HOME/$directory"
    echo "$ergo_conf" >> "$HOME/$directory/ergo.conf"
    ergo_conf="networkType = \"mainnet\""
    echo "$ergo_conf" >> "$HOME/$directory/ergo.conf"
    ergo_conf="node.stateType = \"digest\""
    echo "$ergo_conf" >> "$HOME/$directory/ergo.conf"
    ergo_conf="node.blocksToKeep = 1440"
    echo "$ergo_conf" >> "$HOME/$directory/ergo.conf"
    ergo_conf="node.nipopow.nipopowBootstrap = true"
    echo "$ergo_conf" >> "$HOME/$directory/ergo.conf"
    ergo_conf="}"
    echo $ergo_conf >> "$HOME/$directory/ergo.conf"
    echo -e "${texto_verde}[+] Configuration file successfully created ${reset}"

    # I run the node for the first time
    cd "$HOME"/"$directory" || exit
    java -jar $jar_file --mainnet -c ergo.conf &


    # I store the pid of the node process running at background for the first time
    node_process_pid=$!
    echo -e "${texto_verde}[+] PID $node_process_pid ${reset}"


    # To initialize local node
    sleep 20


    # known public node http://213.239.193.208:9053/
    # local node http://localhost:9053/
    # Create my key haciendo uso de la API en mi nodo activo
    api_key=$(curl -X POST "http://localhost:9053/utils/hash/blake2b" -H "accept: application/json" -H "Content-Type: application/json" -d "\"$my_key\"")
    if [ $? -eq 0 ]; then # Check if the request was successful
    echo -e "${texto_verde}[+] API Response: Api key generated correctly ${reset}"
    else
    echo -e "${texto_rojo}[-] Error when querying the API. ${reset}"
    fi


    # Stop the node 
    kill $node_process_pid
    echo -e "${texto_verde}[+] Node closed to restart with api_key ${reset}"


    # update ergo.conf with api_key
    echo_conf="scorex {"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="restApi {"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="apiKeyHash = $api_key"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="}"
    echo $echo_conf >> "$HOME/$directory/ergo.conf"
    echo_conf="network {"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="nodeName = \"ergo-at-bash\""
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="agentName = \"ergo-at-bash\""
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="maxConnections = 12"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="}"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
    echo_conf="}"
    echo "$echo_conf" >> "$HOME/$directory/ergo.conf"
fi


# I start the node with the correctly configured configuration file.
cd "$HOME/$directory" || exit
echo -e "${texto_verde}[+] Restarting node ${reset}"
java -jar $jar_file --mainnet -c ergo.conf