open-graph-preview-demo

Install

Install serverless (and its alias sls)

npm i -g serverless

To deploy:

sls deploy

Try it:

https://l3mukrh389.execute-api.us-east-1.amazonaws.com/dev/2

If you paste this link in Slack, it will recognize the user agent and return open graph annotation

If you paste this link in a normal browser, it will return a Hello world sentence

Links

• https://medium.com/slack-developer-blog/everything-you-ever-wanted-to-know-about-unfurling-but-were-afraid-to-ask-or-how-to-make-your-e64b4bb9254
• https://ogp.me/