I use CF Worker to deliver the static copy of my old blogs. Files are stored in Backblaze’ B2. Here is how this works:
import { AwsClient } from 'aws4fetch'
// Those come from Workers secrets
const aws = new AwsClient({
"accessKeyId": ACCESSKEYID,
"secretAccessKey": SECRETACCESSKEY
});
// Hosting static web files on BackBlaze's B2
// Bucket: blog
// Directory inside bucket: static/
const B2BaseUrl = 'https://s3.us-west-000.backblazeb2.com/blog/static/';
addEventListener('fetch', event => {
event.respondWith(handleRequest(event.request))
})
async function handleRequest(request) {
let response;
if (request.method !== 'GET') {
response = new Response('Expect only GET requests', { status: 400 })
} else {
let b2Url = request.url.split('/').slice(3).join('/');
if (b2Url == "" || b2Url == "/") {
b2Url = "index.html";
}
b2Url = B2BaseUrl + b2Url;
let signedRequest = await aws.sign(b2Url);
response = await fetch(signedRequest);
// Make the headers mutable by re-constructing the Response.
response = new Response(response.body, response);
response.headers.set('Cache-Control', 'max-age=7200')
}
return response;
}
To set up the 2 secrets (repeat with SECRETACCESSKEY):
❯ wrangler secret put ACCESSKEYID
Enter the secret text you'd like assigned to the variable ACCESSKEYID on the script named blog-static:
I used the native B2 API before, but there’s no way (I found) to not constantly refresh the download key as the max lifetime for such a key was 1 week. The S3 API is much easier as it’s fixed (inside the secrets).
