# install it as a cli tool
npm install -g hookserver

# start the server daemonized and redirect log to ./hookserver.log
# 6086 is the default port, you can use -p or --port option to override it
hookserver start -d -l ./hookserver.log

# switch to the examples folder shipped with the package
cd /usr/local/lib/node_modules/hookserver/examples  

# register a webhook with the name 'hello' 
# that will trigger the bash script found at './hello.sh' to be executed
hookserver add hook hello ./hello.sh

# register a new security key 'my-test-key' to allow access to the registered webhooks via http requests
hookserver add key my-test-key

# test it out: send a get request to 'http://localhost:6086/hello?my-test-key'
curl "http://localhost:6086/hello?my-test-key"

# the output:
# {"status":"success","result":"Hello Webhooks!\n"}

# so instead of this...
npm install -g hookserver

# ...maybe you will have to use this
sudo npm i -g hookserver --unsafe-perm