Example of how to relay lead data to an service api during a form submission.

function.php

<?php

add_action('inbound_store_lead_post' , 'relay_data_to_custom_service' );

function relay_data_to_custom_service( $lead_data ) {
	
	if ($lead_data['page_id'] != '75' ) {
		return;
	}
	
	/* Decode json that carries mapped lead data */
	$lead_data = json_decode( stripslashes($lead_data['form_input_values']) , true );
	
	
	/* Open CURL connection to destination URL */
	$ch = curl_init();   
																				
	curl_setopt($ch, CURLOPT_URL,	'https://www.service.com/api/' );	
	curl_setopt($ch, CURLOPT_POST,	1 );																		
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, true); 
	curl_setopt($ch, CURLOPT_POSTFIELDS , $lead_data );
	
	/* execute and gret response */
	$return = curl_exec($ch);
	
	/* If return doesn't contain any response data then throw an errorin the php error log file */
	if(!$return) {
		error_log(  'Action Event - Sending Data to External URL - Error <h2>Settings</h2><pre>'.'Error: "' . curl_error($curl) . '" - Code: ' . curl_errno($curl).'</pre>' );
	}
	
	
	curl_close($ch);

}