Function getRequestHeader

packages/req/src/index.ts:10–20

(req: Pick<Request, 'headers'>)

export * from '@tinyhttp/url'

export const getRequestHeader = (req: Pick<Request, 'headers'>) => (header: string): string | string[] => {
  const lc = header.toLowerCase()

  switch (lc) {
    case 'referer':
    case 'referrer':
      return req.headers.referrer || req.headers.referer
    default:
      return req.headers[lc]
  }
}

export const getRangeFromHeader = (req: Pick<Request, 'headers'>) => (size: number, options?: Options) => {
  const range = getRequestHeader(req)('Range') as string