Handling WhatsApp Events

Handling Text Events

The most common event that your bot would ever receive is text message. To determine whether the event is a text message event, you may use context.event.isText boolean value to do that:

async function App(context) {
  if (context.event.isText) {
    // handling the text message event
  }
}

You can get the text content using context.event.text and use it in the reply:

async function App(context) {
  if (context.event.isText) {
    await context.sendText(`received the text message: ${context.event.text}`);
  }
}

Handling Media Events

Sometimes, your bot might receive the photos sent from the user. In this case, you could use context.event.media to get the content type and the URL of the media.

async function App(context) {
  if (context.event.isMedia) {
    await context.sendText(
      `received the media message: ${context.event.media.contentType} ${context.event.media.url}`
    );
  }
}

Handling Events with Router

Bottender offers a bunch of helpers to routes within your WhatsApp or multi-platform application. To learn more, please check out Bottender's doc, WhatsApp Routing.