How can i put _id. to the server? thanks and how can i take data from {{#each }}? how can use this.?

help i need to pass the _id of the drink and a quantity to the server, and calculate the total price on the server, and create an order based off of that.

{{#each drinks}}
              <td>$ {{price}}</td>
              <td>{{impuesto}} %</td>
              <td><form class="new-order">
<p><input name="cantidad" type="number" placeholder="Cantidad" /></p>



<input type="hidden" name="_id" value={{_id}}" />