<ul><li>Effect enhances Typescript by providing custom types and functions inspired by Functional Programming in Framework like ZIO in Scala.</li><li>Effect try to solve real Typescript problems and miss in the standard library that can be used with OOP in NestJS.</li><li>Refactors a basic flow using Nest pattern to Effect in cat service.</li><li>Using Effect Schema to decode the newCat object by a given Schema Cat which automatically returns a ParseError if it fails.</li><li>An Effect is not actually run before we specify it to do so by using an Interceptor.</li><li>The code examples and source code are available in the article.</li><li>We can also implement a custom Pipe to validate the DTO using the Effect.</li><li>Developers can improve experience and maintainability using Effect in cat service.</li><li>It solves the problems of explicit error throwing and validation.</li><li>Interceptor can be used to properly run the Effect before returning value in NestJS app.</li></ul>

Effect with Nestjs

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