Gupshup - Smart Messaging Platform
gupshup.io provides a platform for developers to build bots for SMS, Twitter, Slack, WeChat, Teamchat and others with a unified API, build messaging services,use advanced developer tools for mesaging with a unified API. Embed smart messaging into your app and website for a seamlessly integrated user experience
Facebook allows you to send different types of messages through the bot like plain ... The complete sample JSON for the Generic template:(without messenger ...