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lxp-trait-lib

v1.0.0

Published

Biblioteca interna de trait control (feature flags) para projetos LXP

Readme

lxp-trait-lib

Biblioteca interna de Trait Control (feature flags) para projetos LXP. Permite verificar se uma feature está ativa para um usuário com base em regras de inclusão/exclusão por instituição, carreira, programa e faixa etária.

Instalação

npm install git+ssh://[email protected]/CIonline/lxp-trait-lib.git

Pré-requisitos

O projeto consumidor deve ter @nestjs/typeorm e typeorm configurados com uma conexão ao banco que contém a tabela features.

Uso

1. Importar o módulo

import { TraitControlModule } from '@cionline/lxp-trait-lib';

@Module({
  imports: [
    TypeOrmModule.forRoot({...}), // conexão existente
    TraitControlModule,
  ],
})
export class AppModule {}

2. Injetar o service

import { TraitControlService, ITraitInput } from '@cionline/lxp-trait-lib';

@Injectable()
export class MeuService {
  constructor(private readonly traitControl: TraitControlService) {}

  async verificarFeature() {
    const ativo = await this.traitControl.check({
      institution: 'minha-instituicao',
      career: 'graduacao',
      slug: 'minha-feature',
      programId: 123,
      ageRange: '18-25',
    });

    if (ativo) {
      // feature habilitada para este usuário
    }
  }
}

API

TraitControlService.check(input: ITraitInput): Promise<boolean>

Verifica se um trait (feature) está ativo para o input fornecido.

Parâmetros (ITraitInput):

| Campo | Tipo | Descrição | |---------------|----------|----------------------------------| | institution | string | Identificador da instituição | | career | string | Identificador da carreira | | slug | string | Slug único do trait/feature | | programId | number | ID do programa/curso | | ageRange | string | Faixa etária do usuário |

Retorno: true se o trait está ativo, false caso contrário.

Lógica de regras:

  • Regras de exclusão têm precedência sobre inclusão
  • Se há match em exclusão → retorna false
  • Se há match em inclusão → retorna true
  • Sem match → retorna false

Exports

import {
  TraitControlModule,   // módulo NestJS
  TraitControlService,  // service principal
  TraitEntity,          // entidade TypeORM (tabela features)
  ITraitInput,          // interface de input
} from '@cionline/lxp-trait-lib';

Desenvolvimento

nvm use
npm install
npm run build