Then try
# in your controller
def some_action(conn, params) do
# ...
%{"Table" => table} = Posion,decode!(json)
render(conn, "some_template.html", table: table) # table is a map now
end
# in your template some_template.html.eex
<%= for row <- @table do %>
<tr><%= row["RECID"] %></tr>
<!-- etc -->
<% end %>
