Provide a Signature using a Mixnode or Gateway

node_signature_executor.sh

#!/bin/bash

echo "do you want to sign a message with a mixnode or a gateway? enter 'mixnode' or 'gateway':"
read NODE_TYPE

case $NODE_TYPE in
mixnode)
    NODE_TYPE="mixnode"
    CONFIG_PATH_NODE="mixnodes"
    ;;
gateway)
    NODE_TYPE="gateway"
    CONFIG_PATH_NODE="gateways"
    ;;
*)
    echo "invalid selection run either 'mixnode' or 'gateway'"
    exit 1
    ;;
esac

read -p "enter your home path (default is /home/nym): " USER_HOME_PATH
CONFIG_ROOT_PATH="${USER_HOME_PATH:-/home/nym}/.nym/${CONFIG_PATH_NODE}/*/config"

NODE_ID=$(grep '^id =' $CONFIG_ROOT_PATH/config.toml | awk -F"'" '{print $2}')
LISTENING_ADDRESS=$(grep 'listening_address =' $CONFIG_ROOT_PATH/config.toml | awk -F"'" '{print $2}')

if [[ -z "$NODE_ID" || -z "$LISTENING_ADDRESS" ]]; then
    echo "failed to extract node id or listening address using ${NODE_TYPE}, do you have the correct node selected? 🧐 "
    exit 1
fi

read -p "enter the text you want to sign (default is your listening address): " TEXT_TO_SIGN
TEXT_TO_SIGN="${TEXT_TO_SIGN:-$LISTENING_ADDRESS}"

SIGNATURE_OUTPUT=$(./nym-${NODE_TYPE} sign --id "$NODE_ID" --text "$TEXT_TO_SIGN" --output json 2>/dev/null)

ENCODED_MESSAGE=$(echo "$SIGNATURE_OUTPUT" | jq -r '.encoded_message')
ENCODED_SIGNATURE=$(echo "$SIGNATURE_OUTPUT" | jq -r '.encoded_signature')

echo "encoded message: $ENCODED_MESSAGE"
echo "encoded bs58 sig: $ENCODED_SIGNATURE"
echo "node id: $NODE_ID"
echo "text signed: $TEXT_TO_SIGN"

output is as follows:

-------------
Gateway operating machine
-------------
./node_signature_executor.sh
do you want to sign a message with a mixnode or a gateway? Enter 'mixnode' or 'gateway':
gateway
enter your home path (default is /home/nym): 
enter the text you want to sign (default is your listening address): 
encoded message: 1.2.3.4
encoded bs58 sig: t8b4NjaJ3duVEsi4bXKcUCnrYgMpJE4n1W1wzfMWgE7zuocJdDLz2nqa3MRkgzHavpARuv5z1a8aTX2fPpnqU5e
node id: <id outputted>
text signed: 1.2.3.4

-------------
Mixnode operating machine
-------------
./node_signature_executor.sh
do you want to sign a message with a mixnode or a gateway? enter 'mixnode' or 'gateway':
mixnode
enter your home path (default is /home/nym): 
enter the text you want to sign (default is your listening address): 
encoded message: 130.160.240.130
encoded bs58 sig: 5kjXXezZ83QX7N2rc4s3AGfpXpqMeFyQeB2t2Nqt6gQQps5TqvrkJzidS2VwmFwhwEKJzVAEXzXfydpgCN23qgxQ
node id: <id outputted>
text signed: 130.160.240.130

The examples above have been slightly modified to show case the output.