How to build a Slack bot with Zapier and JavaScript to fetch trending topics on Reddit
Blog post from Snyk
A Zapier-based JavaScript workflow can automate sharing trending Reddit posts in Slack without hosting a dedicated bot server. The process uses a scheduled Zapier trigger, a Code by Zapier action to retrieve and format subreddit posts, and Slack’s native “Send Channel Message” action to publish the results. Reddit data can be obtained either through OAuth using a registered application’s client credentials, refresh token, and access token, or through a simpler public JSON endpoint for read-only access to subreddit listings. The example retrieves top r/node posts for a selected timeframe, builds Slack-formatted links from post titles and permalinks, and sends the resulting message to a chosen channel. It also notes that Zapier’s Node.js 10 environment is end-of-life, highlights the current Reddit time query parameter, and recommends following Reddit API terms and JavaScript security practices.
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