findProvider.js

import fs from 'fs'
import path from 'path'
import minimatch from 'minimatch'

let oEmbedProvidersFile = fs.readFileSync(path.join(__dirname, './providers.json'), 'utf8')
// some providers allow a format parameter
// we need JSON
oEmbedProvidersFile = oEmbedProvidersFile.replace(/\{format\}/g, 'json')
const oEmbedProviders = JSON.parse(oEmbedProvidersFile)

export default function(embedUrl) {
  for (const provider of oEmbedProviders) {
    for (const endpoint of provider.endpoints) {
      const { schemes = [], url } = endpoint
      if (schemes.some(scheme => minimatch(embedUrl, scheme))) return url
    }
    const { hostname } = new URL(embedUrl)
    if (provider.provider_url.includes(hostname)) {
      const {
        endpoints: [{ url }],
      } = provider
      return url
    }
  }
  return null
}