Messages to relays

According to NIP-01 there are the following different messages we can send as a client to a relay.

• REQ - used to request events and subscribe to new updates
• EVENT - used to publish events
• CLOSE - used to stop previous subscriptions

Request messages

Request messages are used for fetching data from relay. Events will be requested and with a subscription you can keep the connection open to receive new updates. You can add multiple filters to a request message.

$subscription = new Subscription();
$subscriptionId = $subscription->setId();
$filter1 = new Filter();
$filter1->setKinds([0,1,30023]);
$filter1->setLimit(50);
$filter2 = new Filter();
//
$filters = [$filter1, $filter2];
$requestMessage = new RequestMessage($subscriptionId, $filters);

Event messages

Event messages are used for publishing Nostr event to relays.

$note = new Event();
// 
$eventMessage = new EventMessage($note);

Closing messages

A close message can be used to 'unsubscribe' an active subscription to a relay initialized by a request message.

$closeMessage = new CloseMessage($subscriptionId);