@browsery/type-is/types/index.d.ts

Browser compatible type-is module

/// <reference types="node" />
import { IncomingMessage } from 'http';

export default typeIs;

declare function typeIs(
  request: IncomingMessage,
  types: string[],
): string | false | null;
declare function typeIs(
  request: IncomingMessage,
  ...types: string[]
): string | false | null;

declare namespace typeIs {
  function normalize(type: string): string | false;
  function hasBody(request: IncomingMessage): boolean;
  function is(mediaType: string, types: string[]): string | false;
  function is(mediaType: string, ...types: string[]): string | false;
  function mimeMatch(expected: false | string, actual: string): boolean;
}