chore: use Zlib for gzip demo

Author: brettz9

package-lock.json

@@ -73,7 +73,6 @@
  "globals": "^16.4.0",
  "mocha": "^11.7.4",
  "node-fetch": "^2.6.6",
- "node-gzip": "^1.1.2",
  "rollup": "^4.52.4",
  "typescript": "^5.9.3"
  },

package.json

@@ -1,7 +1,22 @@
-import {writeFile} from 'fs/promises';
-import {gzip} from 'node-gzip';
+import {
+ createReadStream,
+ createWriteStream,
+} from 'node:fs';
+import { createGzip } from 'node:zlib';
+import { pipeline } from 'node:stream/promises';
 
-await writeFile(
- import.meta.dirname + '/fixtures/hello.txt.gz',
- await gzip('hello world')
+/**
+ * @param {string} input
+ * @param {string} output
+ */
+async function gzip (input, output) {
+ const gzip = createGzip();
+ const source = createReadStream(input);
+ const destination = createWriteStream(output);
+ await pipeline(source, gzip, destination);
+}
+
+await gzip(
+ import.meta.dirname + '/fixtures/hello.txt',
+ import.meta.dirname + '/fixtures/hello.txt.gz'
 );