Show HN: Feature flags on the edge, with Haskell and Rust

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  • ihp

    🔥 The fastest way to build type safe web apps. IHP is a new batteries-included web framework optimized for longterm productivity and programmer happiness

    Hey everyone! I wanted to play with Haskell ([IHP](, and Rust (Cloudflare workers), so I decided to make a product with them. This is the MVP I’ve come up with. It supports teams, projects, environments, flag variations, scheduling and expiry, and a reasonably complete targeting system that support Boolean logic combining user ID targets, arbitrary metadata targeting, rollout targets, and default fallthrough variations. There’s a typescript and react SDK, and swagger API docs. The website runs on IHP, and the actual flag resolving API is deployed on cloudflare workers, so response times are generally 40-100ms. Coming soon: reusable groupings of users, and a dashboard showing all the users that have been targeted, what flags they evaluated, and what they evaluated to.

    Let me know what you think!

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