Install n8n - Open Source Workflow Automation - on MacOS

What is n8n?

n8n is an extendable workflow automation tool. With a fair-code distribution model, n8n will always have visible source code, be available to self-host, and allow you to add your own custom functions, logic and apps. n8n's node-based approach makes it highly versatile, enabling you to connect anything to everything. -https://github.com/n8n-io/n8n

Installing Homebrew Package Manager

  1. Start LaunchPad from the dock
  2. Search terminal > Click Terminal to launch it
  3. Run the following commands in the terminal window
    # if prompted, click install and agree to install command line tools
    # install homebrew
    /bin/bash -c "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)"
    # enter your password
    # press Enter to continue

Installing n8n

  1. Run the following commands in a terminal window
    # install nodejs
    brew install node@16
    # correct brew link to nodejs v16
    brew unlink node
    brew link --overwrite node@16
    # install mariadb
    brew install mariadb
    # start the mariadb service
    mysql.server start
    # set mariadb service to autostart
    brew services start mariadb
    # connect to the database
    sudo mysql -uroot
  2. Run the following commands to create the n8n database and database user
    CREATE DATABASE n8n;
    GRANT ALL ON n8n.* to 'n8n_rw'@'localhost' IDENTIFIED BY 'n8n_N8N!';
    FLUSH PRIVILEGES;
    EXIT;
  3. Continue with the following commands:
    # set environmental variables
    export DB_TYPE="mysqldb"
    export DB_MYSQLDB_DATABASE="n8n"
    export DB_MYSQLDB_HOST="localhost"
    export DB_MYSQLDB_USER="n8n_rw"
    export DB_MYSQLDB_PASSWORD='n8n_N8N!'
    export GENERIC_TIMEZONE="America/New_York"
    # install n8n
    sudo npm install n8n --location=global
    # run n8n
    sudo n8n start
  4. Open a web browser and navigate to http://DNSorIP:5678
  5. Complete the form with an email, first name, last name and password > Click next
  6. Complete the questionnaire > Click continue
  7. Click Get started
  8. Welcome to n8n

Source: https://docs.n8n.io/hosting/installation/npm/