diff --git a/imports/dashboard/files/massActionDialog.tsx b/imports/dashboard/files/massActionDialog.tsx
index efa679f..dbb6ecb 100644
--- a/imports/dashboard/files/massActionDialog.tsx
+++ b/imports/dashboard/files/massActionDialog.tsx
@@ -28,22 +28,53 @@ const MassActionDialog = ({
     handleClose()
     if (operation === 'compress') {
       setOverlay(`Compressing ${files.length} files on the server.`)
-      const json = files.map(f => path + f)
       const archiveTypeParam = archiveType.startsWith('tar') ? '&archiveType=tar&compress=' + (
         archiveType === 'tar.gz' ? 'gzip'
           : archiveType === 'tar.xz' ? 'xz'
             : archiveType === 'tar.zst' ? 'zstd'
               : 'false'
       ) : ''
-      const uri = archiveTypeParam === 'zip' ? endpoint : endpoint + '/v2'
-      ky.post(`${uri}?path=${encodeURIComponent(path + newPath + '.' + archiveType)}${archiveTypeParam}`, { json }).then(res => {
-        setOverlay('')
+      ky.post(`${endpoint}/v2\
+?async=true\
+&path=${encodeURIComponent(path + newPath + '.' + archiveType)}${archiveTypeParam}\
+&basePath=${encodeURIComponent(path)}`, { json: files }).then(res => {
         if (res.ok) {
-          reload()
-          setMessage('Compressed all files successfully!')
-        } else if (res.status === 404 && archiveTypeParam !== 'zip') {
+          // Poll the token every second until the compression is finished.
+          res.json<{ token: string }>().then(async ({ token }) => {
+            while (true) {
+              const res = await ky.get(`${endpoint}/v2?token=${token}`).json<{ finished: boolean, error: string }>()
+              if (res.finished || res.error) {
+                reload()
+                setOverlay('')
+                setMessage(res.error ?? 'Compressed all files successfully!')
+                break
+              }
+              await new Promise(resolve => setTimeout(resolve, 1000))
+            }
+          }).catch(() => setMessage('Failed to compress the files!'))
+        } else if (res.status === 404 && archiveType !== 'zip') {
+          setOverlay('')
           setMessage('Compressing `tar` archives requires Octyne v1.2 or newer!')
-        } else setMessage('Failed to compress the files!')
+        } else if (res.status === 404) {
+          // Fallback to v1 API without async compression and basePath.
+          const json = files.map(f => path + f)
+          ky.post(`${endpoint}?path=${encodeURIComponent(path + newPath + '.zip')}`, { json }).then(res => {
+            setOverlay('')
+            if (res.ok) {
+              reload()
+              setMessage('Compressed all files successfully!')
+            } else {
+              res.json<{ error: string }>()
+                .then(({ error }) => setMessage(error ?? 'Failed to compress the files!'))
+                .catch(() => setMessage('Failed to compress the files!'))
+            }
+          }).catch(() => { setOverlay(''); setMessage('Failed to compress the files!') })
+        } else {
+          setOverlay('')
+          res.json<{ error: string }>()
+            .then(({ error }) => setMessage(error ?? 'Failed to compress the files!'))
+            .catch(() => setMessage('Failed to compress the files!'))
+        }
       }).catch(() => { setOverlay(''); setMessage('Failed to compress the files!') })
       return
     }