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@odeconto/scraper

v0.1.20

Published

Scraper de Open Graph / Twitter Cards com normalização

Downloads

4

Readme

@odeconto/scraper

Biblioteca Node.js para extrair e normalizar metadados (Open Graph, Twitter Cards e informações básicas) de páginas web.

Recursos

  • Extração unificada de metadados Open Graph, Twitter e básicos.
  • Busca opcional por imagens de fallback quando os metadados não estão presentes.
  • Função auxiliar pickBestImage para escolher a imagem mais relevante.
  • Retorno inclui diagnósticos com origem dos dados e tempos de execução.

Requisitos

  • Node.js >= 18.17.

Instalação

pnpm add @odeconto/scraper
# ou
npm install @odeconto/scraper

Uso básico

import { scrape, pickBestImage } from '@odeconto/scraper';

const result = await scrape('https://example.com');
console.log(result.meta.og.title);
console.log('Imagem principal:', pickBestImage(result.meta));

Opções

  • depth: 'fast' | 'deep''fast' (padrão) ignora a busca por imagens de fallback; 'deep' habilita essa busca.
  • timeoutMs: number — tempo máximo para a requisição (8s por padrão).
  • userAgent: string — define o cabeçalho User-Agent usado na requisição.
  • locale: string — define o cabeçalho Accept-Language para a requisição HTTP.

Erros

A função scrape pode lançar ScrapeError com os códigos:

  • NETWORK_ERROR — falha de rede ou timeout.
  • HTTP_ERROR — código de status HTTP diferente de 2xx.
  • PARSE_ERROR — erro ao interpretar o HTML retornado.

Scripts de desenvolvimento

  • pnpm lint — executa o ESLint.
  • pnpm build — gera os bundles ESM/CJS e os arquivos de tipos.
  • pnpm dev — modo watch do build.

Licença

MIT