feat(storage): add content-encoding support for uploads

packages/core/storage-js/src/lib/types.ts

@@ -88,6 +88,10 @@ export interface FileOptions {
    * the `Content-Type` header value. Should be specified if using a `fileBody` that is neither `Blob` nor `File` nor `FormData`, otherwise will default to `text/plain;charset=UTF-8`.
    */
   contentType?: string
+  /**
+   * The `Content-Encoding` header value (e.g., `gzip`).
+   */
+  contentEncoding?: string
   /**
    * When upsert is set to true, the file is overwritten if it exists. When set to false, an error is thrown if the object already exists. Defaults to false.
    */

packages/core/storage-js/src/packages/StorageFileApi.ts

@@ -124,6 +124,10 @@ export default class StorageFileApi {
         headers['cache-control'] = `max-age=${options.cacheControl}`
         headers['content-type'] = options.contentType as string
 
+        if (options.contentEncoding) {
+          headers['content-encoding'] = options.contentEncoding
+        }
+
         if (metadata) {
           headers['x-metadata'] = this.toBase64(this.encodeMetadata(metadata))
         }
@@ -291,6 +295,9 @@ export default class StorageFileApi {
         body = fileBody
         headers['cache-control'] = `max-age=${options.cacheControl}`
         headers['content-type'] = options.contentType as string
+        if (options.contentEncoding) {
+          headers['content-encoding'] = options.contentEncoding
+        }
       }
 
       const data = await put(this.fetch, url.toString(), body as object, { headers })

packages/core/storage-js/test/storageFileApi.test.ts

@@ -7,6 +7,7 @@ import ReadableStream from 'node:stream'
 import { StorageApiError, StorageError } from '../src/lib/errors'
 import BlobDownloadBuilder from '../src/packages/BlobDownloadBuilder'
 import StreamDownloadBuilder from '../src/packages/StreamDownloadBuilder'
+import StorageFileApi from '../src/packages/StorageFileApi'
 
 // TODO: need to setup storage-api server for this test
 const URL = 'http://localhost:8000/storage/v1'
@@ -851,5 +852,17 @@ describe('StorageFileApi Edge Cases', () => {
       expect(body).toBe(testFormData)
       expect(headers[testHeaderKey]).toBe(testHeaderValue)
     })
+
+    test('upload sets Content-Encoding when provided', async () => {
+      await storage.from('test-bucket').upload('test-path', new Uint8Array([1, 2, 3]), {
+        contentType: 'application/octet-stream',
+        contentEncoding: 'gzip',
+      })
+
+      expect(mockPost).toHaveBeenCalled()
+      const [, , body, { headers }] = mockPost.mock.calls[0]
+      expect(headers['content-type']).toBe('application/octet-stream')
+      expect(headers['content-encoding']).toBe('gzip')
+    })
   })
 })