Support meta image for sharing

[ZeroX-DG]

It would be really nice if we can have a "cover" image whenever we share a post on Facebook, Twitter or Slack. You can argue that user can directly share the original post to support cover image but still...it would be nice if we can generate a cover if it was shared via weblog.

I'm thinking of generating the cover image based on the post (pretty much like Github). A sample image could look like this:

[lqt93]

It is good to have this feature. However, to help the author to gain traffic for their page, for current posts, I think we should support sharing the original link instead. Sharing with meta like this can be used for future features like joint posts, or posts like "30 days of sharing", etc.

[huytd]

Something like this would be helpful: https://github.com/vercel/og-image

Or we can take a look at the implementation and learn from it.

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About original link, I think we can handle it like this:

• If we gonna implement the social sharing buttons, the shared link should be the original link, and the author's blog should handle meta image.
• If the user just copy WeBuild Blog's link, we should handle the meta image.