http-header-helper v2.0.1

http-header-helper

A collection of simple helpers to generate frequently used http headers

This package is mostly private used, however I would be pleasant to receive community requests.

Usage

To create a helper instance, pass file name to it:

import {HttpHeaderHelper} from 'http-header-helper';

const helper = new HttpHeaderHelper(filename);

All helper generation methods return this so you can chain them.

• helper.cacheNever(): add http headers indicating a resource should never be cached and should be revalidated on every request.
• helper.cacheForever(): add https headers indicating a resource should be cached a very long time, this cache is also immutable.
• helper.cacheIfHashed(filename): by providing a filename, this function automatically detects whether a hash sign is in the name, a hash sign is a string containing 8 or more hex characters surrounded by . or -, when filename contains a hash sign, it returns a long term cache header, otherwise the cache is disabled.
• helper.contentType(filename): add http headers containing Content-Type looked up from given filename, application/octstream is used as a fallback.

After all, use helper.getHttpHeaders() to dump a headers object.

Example

import {HttpHeaderHelper} from 'http-header-helper';

const helper = new HttpHeaderHelper(request.url);
const headers = helper.contentType().cacheIfHashed().getHttpHeaders();
response.writeHeader(200, headers);