huginn/app/views/agents/dry_runs/index.html.erb

<% if @events && @events.length > 0 %>
  <h5>Recently received events: </h5>
  <% @events.each do |event| %>
    <%= link_to '#', class: 'dry-run-event-sample', 'data-payload' => event.payload.to_json do %>
      <pre><%= truncate event.payload.to_json, :length => 90, :omission => "" %></pre>
    <% end %>
  <% end %>
<% end %>

<h5>Event to send<%= params[:with_event_mode] == 'maybe' ? ' (Optional)' : '' %></h5>
<form class="dry-run-form" method="post">
  <div class="form-group">
    <textarea rows="10" name="event" class="payload-editor" data-height="200">
      {}
    </textarea>
  </div>
  <div class="form-group">
    <input value="Dry Run" class="btn btn-primary" type="submit" />
  </div>
</form>