app/views/task_managements/_pay.html.erb
<%= form_tag charges_path(amount: @amount, task_id: @task.id) do %>
<article>
<% if flash[:error].present? %>
<div id="error_explanation">
<p><%= flash[:error] %></p>
</div>
<% end %>
<label class="amount">
<span>Amount: <%= @amount %></span>
</label>
</article>
<script src="https://checkout.stripe.com/checkout.js" class="stripe-button"
data-key="<%= Rails.configuration.stripe[:publishable_key] %>"
data-name="Workdey Inc"
data-description="Task payment"
data-amount="<% @amount %>"
data-locale="auto"></script>
<% end %>