Shopify Liquid navigation using Bootstrap 4

shopify-liquid-navigation-with-bootstrap-4.liquid

<nav class="navbar sticky-top navbar-expand-lg navbar-dark bg-primary">
  <div class="container">
    <a class="navbar-brand" href="{{ routes.root_url }}">Joe Pichardo</a>
    <button class="navbar-toggler" type="button" data-toggle="collapse" data-target="#navbarSupportedContent"
            aria-controls="navbarSupportedContent" aria-expanded="false" aria-label="Toggle navigation">
      <span class="navbar-toggler-icon"></span>
    </button>

    <div class="collapse navbar-collapse" id="navbarSupportedContent">
      <ul class="navbar-nav ml-auto">
        {% for link in linklists.main-menu.links %}
          <li class="nav-item {% if link.active %}active {% if link.child_active %}child-active{% endif %}{% endif %} {% if link.links != blank %}dropdown{% endif %}">
            <a class="nav-link {% if link.links != blank %} dropdown-toggle{% endif %}"
               href="{{ link.url }}" {% if link.links != blank %} id="navbarDropdown-{{ link.title | downcase | replace: " ", "-" }}" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"{% endif %}>{{ link.title }} {% if link.active %}
                <span class="sr-only">(current)</span>{% endif %}</a>
            {% if link.links != blank %}
              <div class="dropdown-menu" aria-labelledby="navbarDropdown-{{ link.title | downcase | replace: " ", "-" }}">
                {% for child_link in link.links %}
                  <a class="nav-link dropdown-item {% if child_link.links != blank %} dropdown-toggle {% endif %}" href="{{ child_link.url }}" {% if child_link.links != blank %} id="navbarDropdown-{{ link.title | downcase | replace: " ", "-" }}" role="button" data-toggle="dropdown" aria-haspopup="true" aria-expanded="false"{% endif %}>{{ child_link.title }}</a>
                  {% if child_link.links != blank %}
                    <div class="dropdown-menu" aria-labelledby="navbarDropdown-{{ child_link.title | downcase | replace: " ", "-" }}">
                      {% for grandchild_link in child_link.links %}
                        <div class="dropdown-item">
                          <a class="nav-link {% if grandchild_link.active %}active {% if grandchild_link.child_active %}child-active{% endif %} {% endif %}" href="{{ grandchild_link.url }}">{{ grandchild_link.title }}</a>
                        </div>
                      {% endfor %}
                    </div>
                  {% endif %}
                {% endfor %}
              </div>
            {% endif %}
          </li>
        {% endfor %}
      </ul>

      <form class="search form-inline my-2 my-lg-0" action="{{ routes.search_url }}" method="get" role="search">
        <input
                class="form-control mr-sm-2"
                type="text"
                placeholder="Search"
                aria-label="Search"
                name="q"
                value="{{ search.terms | escape }}"
        />
        <button class="btn btn-outline-light my-2 my-sm-0" type="submit">Search</button>
      </form>
    </div>
  </div>
</nav>