How to send only once one message?

[sgaseretto]

When I run the examples for messenger, once I send something to the bot, it starts spamming the same thing until I stop the server, how do I send a message only once and wait for the user to respond?
Here is an example of what I'm talking:

[wtflink]

Seems like your bot keep receiving the "message_echoes" event.
Set your webhook properly or filter onEcho event to stop the bot from self responding.
You can also check the official webhook setting documents for more info.
ref: https://developers.facebook.com/docs/messenger-platform/webhook

[sgaseretto]

Thanks a lot, it was the "message_echoes" event

[chentsulin]

Or you can filter echo events explicitly in the handler:

bot.onEvent(async context => {
  if (!context.event.isEcho) {
    await context.sendText('Hello World');
  }
});