Function extract

src/main.js:20–37

(input, parserOptions = {}, fetchOptions = {})

 * @returns {Promise<ArticleData|null>} Extracted article data or null
 */
export const extract = async (input, parserOptions = {}, fetchOptions = {}) => {
  if (!isString(input)) {
    throw new Error('Input must be a string')
  }

  if (!isValidUrl(input)) {
    return parseFromHtml(input, null, parserOptions)
  }
  const buffer = await retrieve(input, fetchOptions)
  const text = buffer ? Buffer.from(buffer).toString().trim() : ''
  if (!text) {
    return null
  }
  const charset = getCharset(text)
  const decoder = new TextDecoder(charset)
  const html = decoder.decode(buffer)
  return parseFromHtml(html, input, parserOptions)
}

/**
 * Extract article data from an HTML string directly.