Simple HTTP POST request from an OctoberCMS form submission

page.php

<?php

function onStart()
{
  $flow = curl_init("https://prod-22.westeurope.logic.azure.com:443/...");
                
  curl_setopt($flow, CURLOPT_RETURNTRANSFER, TRUE);
  curl_setopt($flow, CURLOPT_POST, TRUE);
  curl_setopt($flow, CURLOPT_HTTPHEADER, [
      'Content-Type: application/json'    
  ]);

  curl_setopt($flow, CURLOPT_POSTFIELDS, json_encode([
      'name' => post('name'),
      'email' => post('email'),
      'message' => post('message'),
  ]));

  $flowResult = curl_exec($flow);

  if (curl_getinfo($flow, CURLINFO_HTTP_CODE) == 202)
  {
      // The input has been accepted and the flow has started
      $this->page['success'] = "Your message has been sent, thanks!";
  }
  else
  {
      // There was a problem while trying to start the flow
      $this->page['warning'] = "Apologies, it looks like there's a backend problem.";
  }
  
}