Image node

The Image node sends an image to the chatbot from a local file or from a URL or from a Buffer passed by an upstream node (the simplest way to use it to chain with to File node or a Http node).

To programmatically send an image with a Function node

msg.payload = '/my_dir/my_image.png'

or

msg.payload = {
  caption: 'I am the caption',
  image: 'http://www.my_host.com/my_dir/my_image.png'
}

Available parameters for the msg.payload

Name	Type	Description
image	string or buffer	The image string could be a path for a local file or a URL (context variables can be used)
caption	string	Caption of the image. Only for Telegram, Slack and Viber

An example of fetching an image with a Http node

Pay attention to select to select binary buffer in the return drop down of the File node.

Viber only accepts .jpg images less than 1 Mb.