When comparing Luminus vs Yesod, the Slant community recommends Yesod for most people. In the question“What are the best backend web frameworks?” Yesod is ranked 12th while Luminus is ranked 59th. The most important reason people chose Yesod is:
While not required, Yesod offers templating through a Shakespearean family of languages to produce page code.
Specs
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Pros
Pro ClojureScript for client-side scripting
Luminus allows using ClojureScript for client-side development. This allows sharing things like validation logic between the server and the client.
Pro Luminus is flexible
Luminus is built on a stack of composable libraries that can be easily swapped to make the application fit the needs of the user. The applications are generated using Leiningen templates and can be initialized with a specific set of features, such as database connections, needed for a specific application.
Pro Good documentation
Luminus provides step-by-step documentation on how to accomplish common tasks.
Pro Simple to setup and use
Luminus is small and flexible. It's geared towards interactive development using the REPL. You can see your changes as you're working without having to restart the application.
Pro Offers templating for type-safe, well-formed content
While not required, Yesod offers templating through a Shakespearean family of languages to produce page code.
Pro Uses type-safe URLs
Ensures that data provided by the URL is type-safe. This means that data in the URL has a definitive type.
Pro Can be used without knowing much Haskell
While Yesod is written in Haskell, developers can achieve basic functionality without much investment in the language.
Cons
Con Is hard to customize
Learning how Yesod works internally is hard. It is a large framework with complicated components. Finding the appropriate code and understanding how it contributes to the framework is difficult, meaning developers will struggle.
Con Too much template haskell
You actually want to code in haskell and not some DSL with "magic" hidden under the bonnet.