Custom Middleware vs Function Composition
Developers should learn and use custom middleware when they need to add cross-cutting concerns—such as request validation, rate limiting, or data transformation—that apply uniformly across multiple routes or services without cluttering core business logic meets developers should learn function composition to write more declarative, readable, and maintainable code by chaining operations without intermediate variables. Here's our take.
Custom Middleware
Developers should learn and use custom middleware when they need to add cross-cutting concerns—such as request validation, rate limiting, or data transformation—that apply uniformly across multiple routes or services without cluttering core business logic
Custom Middleware
Nice PickDevelopers should learn and use custom middleware when they need to add cross-cutting concerns—such as request validation, rate limiting, or data transformation—that apply uniformly across multiple routes or services without cluttering core business logic
Pros
- +It's particularly useful in scenarios like building RESTful APIs with frameworks like Express
- +Related to: express-js, asp-net-core
Cons
- -Specific tradeoffs depend on your use case
Function Composition
Developers should learn function composition to write more declarative, readable, and maintainable code by chaining operations without intermediate variables
Pros
- +It is particularly useful in data processing pipelines, functional programming patterns, and when working with libraries like Lodash or Ramda
- +Related to: functional-programming, higher-order-functions
Cons
- -Specific tradeoffs depend on your use case
The Verdict
Use Custom Middleware if: You want it's particularly useful in scenarios like building restful apis with frameworks like express and can live with specific tradeoffs depend on your use case.
Use Function Composition if: You prioritize it is particularly useful in data processing pipelines, functional programming patterns, and when working with libraries like lodash or ramda over what Custom Middleware offers.
Developers should learn and use custom middleware when they need to add cross-cutting concerns—such as request validation, rate limiting, or data transformation—that apply uniformly across multiple routes or services without cluttering core business logic
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