parseBranchParams.js

export function parseParams(params) {
  if (!params) {
    return undefined
  }
  if (params['~id']) {
    // it's a branch link, already parsed
    return params
  }
  // parse whilapp:// link
  const urlString = params['+non_branch_link'] || params['~referring_link']
  if (!urlString) {
    return undefined
  }
  const url = new URL(urlString)
  const qs = url.query
  return queryString.parse(qs)
}