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Cloudflare Worker Reverse Proxy Sample
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/* | |
Permission is hereby granted, free of charge, to any person obtaining a copy of this | |
software and associated documentation files (the "Software"), to deal in the Software | |
without restriction, including without limitation the rights to use, copy, modify, merge, | |
publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons | |
to whom the Software is furnished to do so, subject to the following conditions: | |
The above copyright notice and this permission notice shall be included in all copies or | |
substantial portions of the Software. | |
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING | |
BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND | |
NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, | |
DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | |
*/ | |
// if the worker route was yourdomain.com/blog* | |
addEventListener('fetch', event => { | |
event.respondWith(handleRequest(event.request)) | |
}) | |
async function handleRequest(request) { | |
// new URL object to play with, | |
// based on the one being requested. | |
// e.g. https://domain.com/blog/page | |
var url = new URL(request.url) | |
// set hostname to the place we're proxying requests from | |
url.hostname = "blog.yourdomain.com" | |
// remove the first occurence of /blog | |
// so it requests / of the proxy domain | |
url.pathname = url.pathname.replace('/blog', '') | |
// pass the modified url back to the request, | |
let response = await fetch(url, request) | |
return response; | |
} |
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