Golang - Find ID of selected Submit Button

I have a question about Golang. And I have a page that is dynamically generated from my database. It basically reflects all the contents of a table.

 

<form method="POST" action="/cart">
<div class="row">
  <div class="col-1"></div>
  <div class="col-5">
     <p name="test">  </p>
     <br>
     
     <br>
     <button type="submit" class="btn btn-main btn-margin" ><b>Ausleihen</b></button> 
     
      <input type="number" class="form-control main-input2 feld2" id="amount" name="amount" placeholder="Anzahl">
     <em class="status-text" style="color:green"> verfügbar </em>
     
      <input type="number" class="form-control main-input2 feld2" id="amount" name="amount" placeholder="Anzahl">
     <em class="status-text"> entliehen </em>
     
  </div>
  <div class="col-2"></div>
  <div class="col-2" style="margin-top: 30px">
     <img class="float-right img-responsive bild" src="" alt="Kann nicht gezeigt werden">
  </div>
  </div>

<div class="placeholder" style="height:50px"></div>

</form>

In the template, all devices from the DB are listed and provided with their own Submit button.

How can i find the fitting .Name entry to the triggered submit button

I want to pass this value to my / cart located in the controller.

I hope you can help me, thank you in advance