Update

app/src/main/java/it/chalmers/gamma/adapter/primary/web/ClientsController.java

@@ -418,6 +418,18 @@ public ModelAndView createAuthority(
     return mv;
   }
 
+  @DeleteMapping("/clients/{id}")
+  public ModelAndView deleteClient(@RequestHeader(value = "HX-Request", required = true) boolean htmxRequest,
+                                   @PathVariable("id") UUID clientUid) {
+      try {
+          this.clientFacade.delete(clientUid);
+      } catch (ClientFacade.ClientNotFoundException e) {
+          throw new RuntimeException(e);
+      }
+
+    return new ModelAndView("redirect:/clients");
+  }
+
   @DeleteMapping("/clients/{id}/authority/{name}")
   public ModelAndView deleteClientAuthority(
       @RequestHeader(value = "HX-Request", required = true) boolean htmxRequest,

app/src/main/resources/templates/pages/client-details.html

@@ -35,6 +35,11 @@
                 <span th:each="restrictionSuperGroup, stat : ${client.restriction().superGroups()}" th:text="${restrictionSuperGroup.prettyName() + (stat.count == client.restriction().superGroups().size() ? '' : ', ')}"></span>
             </li>
         </ul>
+        <footer>
+            <form data-hx-confirm="Are you sure you want to delete this client?" th:action="|/clients/${clientUid}|" th:method="delete">
+                <button class="outline contrast" data-loading-disable>Delete</button>
+            </form>
+        </footer>
     </article>
 
     <th:block th:each="clientAuthority : ${clientAuthorities}">