onNew
Sets up a listener for the event when a new mail is sent.
Usage
const receiver = '0x...';
const sender = '0x...';
// Listen to received mails
mail.onNew(null, receiver, (envelope) => {
console.log(envelope);
});
// Listen to sent mails
mail.onNew(sender, null, (envelope) => {
console.log(envelope);
});
// Listen to all mails
mail.onNew(null, null, (envelope) => {
console.log(envelope);
});
Stop watching
// Listen to received mails
const stopWatching = mail.onNew(null, receiver, (envelope) => {
console.log(envelope);
});
// ... Later, to stop watching for the events
stopWatching();
Returns
UnwatchFn
A function that can be invoked to stop watching for new event logs.
Parameters
sender
- Type
Address | null
The mail sender's address. If set to null, it listens for mails from any sender.
receiver
- Type
Address | null
The mail receiver's address. If set to null, it listens for mails to any receiver.
callback
- Type
(envelope: ReceivedEnvelope) => void
The callback function to be executed when a new mail event is detected. It receives a ReceivedEnvelope as its only argument.