📝i18n

The module provides a simple way to management different languages.

Imports

Service

import { i18nService } from 'niro-health';

Module

Interface

Environment Variables

Redis

name	description
REDIS_HOST	Host of the redis.
REDIS_PASSWORD	Port of the redis.
REDIS_PORT	Password of the redis.

Write .env file with environment variable. Below has an example:

.env

REDIS_HOST=redis://localhost:6379
REDIS_PORT=6379
REDIS_PASSWORD=

Detailed Section

This is an important module in the system and contains a detailed section.

📝Starting

Method of Use

To use this module, you need to inject it into the desired service.

import { Module } from '@nestjs/common';
import {
  i18nService,
  ConfigurationService,
  ValidatorRegexpService,
  StringExService,
  RedisService,
  DebugService,
  PropStringService,
} from 'niro-health';
import { AppController } from './app.controller';
import { AppService } from './app.service';

@Module({
  controllers: [AppController],
  providers: [
    AppService,
    {
      provide: 'Ii18nService',
      useClass: i18nService,
    },
    {
      provide: 'IConfigurationService',
      useClass: ConfigurationService,
    },
    {
      provide: 'IValidatorRegexpService',
      useClass: ValidatorRegexpService,
    },
    {
      provide: 'IStringExService',
      useClass: StringExService,
    },
    {
      provide: 'IRedisService',
      useClass: RedisService,
    },
    {
      provide: 'IDebugService',
      useClass: DebugService,
    },
    {
      provide: 'IPropStringService',
      useClass: PropStringService,
    },
  ],
})
export class AppModule {}

Before use you do added new locale and define properties from language.

It is recommended to create a new location and set the properties in the root module (main.ts).

Injecting the module into our service.

import { Inject, Injectable } from '@nestjs/common';
import type { Ii18nService } from 'niro-health';

@Injectable()
export class AppService {
  constructor(
    @Inject('Ii18nService')
    private readonly i18nService: Ii18nService,
  ) {}

  async hello() {
    await this.i18nService.setDriver('fs');
    await this.i18nService.addLocale('en');
    await this.i18nService.defineProperty('en', {
      "message": {
        "hello": "Hello World $1"
      },
      "erros": {
        "default": "Something went wrong 😔"
      }
    });
    return await this.i18nService.translate('message.hello', "GuilhermeSantos001");
  }
}

With dependencies

You will need to inject the following interfaces.

Interface	Service
IConfigurationService	Link to Service documentation
IValidatorRegexpService	Link to Service documentation
IStringExService	Link to Service documentation
IRedisService	Link to Service documentation
IDebugService	Link to Service documentation
IPropStringService	Link to Service documentation

Properties

Property	Scope	Description
private _locale	static	Current locale.
private _locales	static	All locales.
private _path	static	The path folder for locales files.
private _driver	static	The driver used for store data (fs or redis).

Methods

Method	Scope	Description
_setDefaultOptions	private	Set default options.
_initialize	private	Initialize the module and create the locales files.
_redisPrefix	private	Get the prefix for redis.
_compress	private	Compress and decompress data.
_decompress	private	Decompress data from string to object.
_redisSerializeKey	private	Serialize key for redis.
_redisSave	private	Save data in redis.
_redisGet	private	Get data from redis.
_redisDelete	private	Delete data from redis.
_writeRelativeLocalePath	private	Write the path folder for locales files.
_relativeLocalePath	private	Get the path folder for locales files.
_fileLocaleExists	private	Check if the file locale exists.
_writeFileLocale	private	Write the file locale.
_readFileLocale	private	Read the file locale.
_definePropFileLocale	private	Define a property in a locale.
_removePropFileLocale	private	Remove a property in a locale.
_extractParserKeys	private	Extract parser keys from text.
_removeParserOptions	private	Remove parser options from text.
_isNoCascade	private	Check if the value is no cascade.
_getCascadeMatchValue	private	Get the cascade match value.
_getCascadeValue	private	Get the cascade value.
_isTrim	private	Check if the value is trim.
_isUppercase	private	Check if the value is uppercase.
_isLowercase	private	Check if the value is lowercase.
_isSpace	private	Check if the value is space.
_getSpaceValue	private	Get the space value.
_isRepeat	private	Check if the value is repeat.
_getRepeatValue	private	Get the repeat value.
_parserText	private	Parser text with params.
_removeLocaleStore	private	Remove a locale from store.
setPath	public	Define path folder for locales files.
setDriver	public	Define driver used for store data.
addLocale	public	Add the current locale.
getPath	public	Returns the path folder for locales files.
getDriver	public	Returns the driver used for store data.
getLocale	public	Get the current locale.
getLocales	public	Get all locales.
resetLocales	public	Reset all locales.
removeLocale	public	Remove a locale.
defineLocale	public	Set the current locale.
defineProperty	public	Define a property in a locale.
removeProperty	public	Remove a property in a locale.
translate	public	Translate a phrase in the current locale.