Just append /slack to webhook url to start using it. Author block declares in different way. You can use Markdown here. The Slack post interface has a Markdown editor with a real-time conversion feature, that is, the formatting of the content is shown as you type. With the real-time editor, the Markdown formatting symbols are removed and the result is displayed immediately, example: test- test.
This is probably a coincidence, but after Mattermost announced markdown support last week, Slack announced the same feature yesterday.
Markdown is an easy-to-read, easy-to-write plain text format that can optionally be converted to HTML, which is commonly used in the open source community for documentation.
Last Thursday, Mattermost wrote a blog post on creating richly formatted posts with headings, lists, code blocks, tables and a board range of font formatting.
Yesterday, Slack announced the same thing.
Again, it’s almost certainly coincidence. Also, it’s likely Slack had the idea long before Mattermost–because it wasn’t our idea.
Two months ago, markdown support in Mattermost started as a community feature idea that amassed dozens of votes (though given their size, Slack probably heard the same idea hundreds of times by now…).
What’s striking here is the power of open source software to respond to community feedback.
A small group of people openly contributing ideas and energy can build faster than a company with hundreds of millions of dollars of funding.
It’s an amazing feeling to work with smart, like-minded individuals from around the world to improve a product that we use every day.
Want that feeling?
Slack Markdown Code
Slack Markdown Table
Get involved with the Mattermost open source project at http://mattermost.org.
Slack Message Formatting Markdown
PS: Yes, we’re currently accepting pull requests to update Mattermost’s Slack import feature to support Slack’s newly announced markdown support.