@nestia/core

Nestia Core Library

Super-fast validation decorators for NestJS.

• 20,000x faster request body validation
• 200x faster JSON response, even type safe
• Do not need DTO class definition, just fine with interface

@nestia/core is a transformer library of NestJS, supporting super-fast validation decorators, by wrapping typia. Comparing validation speed with class-validator, typia is maximum 20,000x faster and it is even much safer.

Furthermore, @nestia/core can use pure interface typed DTO with only one line. With @nestia/core, you don't need any extra dedication like defining JSON schema (@nestjs/swagger), or using class definition with decorator function calls (class-validator). Just enjoy the superfast decorators with pure TypeScript type.

import { Controller } from "@nestjs/common";
import { TypedBody, TypedRoute } from "@nestia/core";

import type { IBbsArticle } from "@bbs-api/structures/IBbsArticle";

@Controller("bbs/articles")
export class BbsArticlesController {
    /** 
     * Store a new content.
     * 
     * @param inupt Content to store
     * @returns Newly archived article
     */
    @TypedRoute.Post() // 200x faster and safer JSON serialization
    public async store(
        @TypedBody() input: IBbsArticle.IStore // super-fast validator
    ): Promise<IBbsArticle>; 
        // do not need DTO class definition, 
        // just fine with interface
}

Setup

Boilerplate Project

npx nestia start <directory>

Just run above command, then boilerplate project would be constructed.

Setup Wizard

npm install --save-dev nestia
npx nestia setup

If you've installed ttypescript during setup, you should compile @nestia/core utilization code through ttsc command, instead of tsc.

# COMPILE THROUGH TTYPESCRIPT
npx ttsc

# RUN TS-NODE WITH TTYPESCRIPT
npx ts-node -C ttypescript src/index.ts

Otherwise, you've chosen ts-patch, you can use original tsc command. However, ts-patch hacks node_modules/typescript source code. Also, whenever update typescript version, you've to run npm run prepare command repeatedly.

By the way, when using @nest/cli, you must just choose ts-patch.

# USE ORIGINAL TSC COMMAND
tsc
npx ts-node src/index.ts

# HOWEVER, WHENVER UPDATE
npm install --save-dev typescript@latest
npm run prepare

Manual Setup

If you want to install and configure @nestia/core manually, read Guide Documents - Setup.

Features

import { Controller } from "@nestjs/common";
import { TypedBody, TypedRoute } from "@nestia/core";

import { IBbsArticle } from "@bbs-api/structures/IBbsArticle";

@Controller("bbs/articles")
export class BbsArticlesController {
    /** 
     * Store a new content.
     * 
     * @param inupt Content to store
     * @returns Newly archived article
     */
    @TypedRoute.Put(":id") // 200x faster and safer JSON serialization
    public async store(
        @TypedParam("section", "string") section: string,
        @TypedParam("id", "uuid") id: string,
        @TypedBody() input: IBbsArticle.IUpdate // super-fast validator
    ): Promise<IBbsArticle.IContent>;
}

About detailed features, read Guide Documents

• Decorators
  • TypedRoute
  • TypedBody
  • TypedQuery
  • TypedParam
• Enhancements
  • Comment Tags
  • Configuration
• Advanced Usage
  • DynamicModule
  • Encryption
  • Inheritance