NestJS vs. Ditsmod: auto-validation

• ditsmod

  10 72 9.8 TypeScript

  Ditsmod is a Node.js web framework, named DI + TS + Mod to emphasize its important components: it has Dependency Injection, written in TypeScript, and designed for good Modularity.

  

This post compares NestJS v9.2.0 and Ditsmod v2.27.0. A finished example of validation with the Ditsmod application can be viewed at github. I am the author of Ditsmod.

• ajv

  60 13,353 6.0 TypeScript

  The fastest JSON schema Validator. Supports JSON Schema draft-04/06/07/2019-09/2020-12 and JSON Type Definition (RFC8927)

  

In the @ditsmod/openapi-validation module, at the moment, the utility ajv directly performs the validation itself.

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• Nest

  312 64,263 9.9 TypeScript

  A progressive Node.js framework for building efficient, scalable, and enterprise-grade server-side applications with TypeScript/JavaScript 🚀

  

Note that headers and cookies cannot be handled similarly in NestJS. While there are workarounds for this, it's still pretty weird and doesn't add consistency to NestJS.

• class-validator

  29 10,469 9.3 TypeScript

  Decorator-based property validation for classes.

  

The description of the request body model in NestJS is similar to the description of Ditsmod models, but NestJS uses decorators provided by the utility class-validator. In NestJS, it is customary to name the request body model with the ending *Dto (this is an abbreviation of Data transfer object):

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