@joktec/utils

Low-level utility package used by JokTec framework packages and applications.

@joktec/utils is intentionally dependency-light. It provides reusable helpers, HTTP constants, validation decorators, and selected class-transformer / class-validator exports so higher-level packages can share the same utility layer.

Install

yarn add @joktec/utils

Public Surface

• HTTP constants:
  • HttpMethod
  • HttpStatus
  • HttpRequestHeader
  • HttpContentType
• conversion helpers:
  • numeric, boolean, array, object, class, URL, and string conversion utilities
• generator helpers:
  • random values, IDs, tokens, and string generation helpers
• validation helpers:
  • runtime checks and validator utilities
• decorators:
  • Is2DArray
  • IsTypes
• re-exports:
  • class-transformer
  • class-validator
  • validateSync

Basic Usage

import { HttpStatus, isEmpty, joinUrl, toArray, toBool } from '@joktec/utils';

const endpoint = joinUrl('https://api.example.com', 'v1', 'users');
const enabled = toBool(process.env.FEATURE_ENABLED, false);
const values = toArray('admin');

if (isEmpty(values)) {
  throw new Error(`Expected at least one role. HTTP ${HttpStatus.BAD_REQUEST}`);
}

Config Validation Usage

JokTec config classes commonly use validators from this package:

import { IsBoolean, IsOptional, IsString, toBool } from '@joktec/utils';

export class ExampleConfig {
  @IsString()
  name!: string;

  @IsOptional()
  @IsBoolean()
  debug?: boolean;

  constructor(props: ExampleConfig) {
    Object.assign(this, {
      ...props,
      debug: toBool(props.debug, false),
    });
  }
}

Design Guidelines

• Keep this package free of framework, database, broker, adapter, and app dependencies.
• Prefer small deterministic helpers over stateful services.
• Use helpers here only when they are broadly reusable across packages.
• Avoid placing business-domain behavior in this package.
• Keep validation decorators generic and independent from any specific application model.

Repository Layout

• src/constants: HTTP constants.
• src/helpers: conversion, generation, encryption, validation, and runtime helper functions.
• src/validators: class-validator decorators.
• src/index.ts: public package export boundary.

Development

yarn lint --scope @joktec/utils
yarn build --scope @joktec/utils
yarn test --scope @joktec/utils