Cloudflare R2 #88

gianpaj · 2025-07-06T16:24:19Z

/generate-audio route
/clone-voice route

update

next.config.js - remotePatterns
remove @vercel/blob package
update or remove scripts/sync-with-redis.js file

later

upload sample files to R2 and update app/[lang]/page.tsx

…ject lifecycle rule: - Delete uploaded objects after 30 days (for free users)

bolt-new-by-stackblitz · 2025-07-06T16:24:21Z

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jazzberry-ai · 2025-07-06T16:24:22Z

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vercel · 2025-07-06T16:24:24Z

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
sexyvoice	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jul 6, 2025 5:42pm

socket-security · 2025-07-06T16:24:42Z

Review the following changes in direct dependencies. Learn more about Socket for GitHub.

Diff	Package	Supply Chain Security	Vulnerability	Quality	Maintenance	License
	@aws-sdk/client-s3@3.842.0

View full report

gemini-code-assist

Summary of Changes

Hello @gianpaj, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request implements a significant infrastructure change by transitioning the application's audio file storage from Vercel Blob to Cloudflare R2. This migration primarily affects the audio generation API, which now leverages R2 for storage and introduces a mechanism to organize generated audio based on user subscription tiers.

Highlights

Storage Migration to Cloudflare R2: The core change in this pull request is the migration of audio file storage from Vercel Blob to Cloudflare R2. This involves updating configuration, documentation, and the API logic to interact with R2.
R2 Integration for Audio Generation: The /api/generate-voice route has been refactored to use Cloudflare R2 for storing generated audio files. A new utility function (uploadFileToR2) is introduced to handle the upload process.
Tiered Storage for Users: The system now differentiates storage paths for generated audio based on a user's paid status. Paid users' audio is stored in a dedicated folder, while free users' audio goes into a separate 'free' folder.
Documentation and Configuration Updates: All relevant documentation files (.env.example, ARCHITECTURE.md, CLAUDE.md, README.md) have been updated to reflect the switch to Cloudflare R2 and its required environment variables. The next.config.js file was also updated to allow the new R2 domain in the Content Security Policy.

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gemini-code-assist

Code Review

This pull request migrates audio file storage from Vercel Blob to Cloudflare R2 for the /generate-audio route, updating environment variables, documentation, and file upload logic to use the AWS S3 SDK with R2. A critical issue exists in the WAV file generation that could lead to corrupted files, and a high severity issue exists in the new R2 upload utility function.

gemini-code-assist · 2025-07-06T16:25:55Z

lib/audio.ts

  const buffer = Buffer.from(rawData, 'base64');
+  const wavHeader = createWavHeader(rawData.length, options);


The createWavHeader function is being called with rawData.length. rawData is a base64 encoded string, so its length is not the correct byte length of the decoded audio data. This will result in a WAV file with an incorrect header, specifically the Subchunk2Size will be wrong, which can cause playback issues or file corruption.

The length of the decoded Buffer should be used instead. The commented-out line contains the correct implementation.

Suggested change

const wavHeader = createWavHeader(rawData.length, options);

const wavHeader = createWavHeader(buffer.length, options);

gemini-code-assist · 2025-07-06T16:25:55Z

lib/storage/upload.ts

+  contentType: string,
+) => {
+  const params: PutObjectCommandInput = {
+    Bucket: process.env.R2_BUCKET_NAME,


The R2_BUCKET_NAME environment variable is used without a non-null assertion (!). This is inconsistent with how other environment variables are accessed in this file (e.g., R2_ACCESS_KEY_ID!). If R2_BUCKET_NAME is not set in the environment, Bucket will be undefined, causing a runtime error when the S3 command is sent. To prevent this and maintain consistency, a non-null assertion should be added.

Suggested change

Bucket: process.env.R2_BUCKET_NAME,

Bucket: process.env.R2_BUCKET_NAME!,

jazzberry-ai · 2025-07-06T16:54:59Z

Bug Report

Name	Severity	Example test case	Description
Inconsistent User Paid Status due to Redis Cache Invalidation	Medium	A user subscribes to a paid plan, but the Redis cache is not updated promptly. The user attempts to generate a voice and gets incorrectly identified as a free user, leading to audio stored in the wrong folder.	The `checkUserPaidStatus` relies on Redis for subscription status. Delays/failures in webhook updates can lead to stale data, causing paid users to be treated as free users or vice versa.
Hardcoded CDN URL in `uploadFileToR2`	High	Deploy the app with a custom domain for the R2 bucket. Generate audio. The generated URL will still point to `https://files.sexyvoice.ai/${filename}`, ignoring the custom domain.	The `uploadFileToR2` hardcodes the CDN URL, preventing the use of custom domains for serving audio. This can lead to CDN issues, SSL errors, or access restrictions.
Lack of Specific Error Handling for R2 Uploads	Low	Misconfigure R2 credentials. Generate audio. A generic error is returned ("Failed to generate voice"). Sentry captures the exception, but lacks R2-specific details (e.g., "Invalid access key").	The `uploadFileToR2` lacks specific error handling. R2 upload failures result in generic error messages, making debugging difficult.

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jazzberry-ai · 2025-07-06T17:39:46Z

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gianpaj added 4 commits July 5, 2025 20:24

Cloudflare R2 storage

0bc1aed

update README, CLAUDE.md and ARCHITECTURE.md

7720bc1

generate-voice: upload to Cloudflare R2

2df5dc8

upload to generated-audio-free or not folder in R2 bucket to use a Ob…

7601162

…ject lifecycle rule: - Delete uploaded objects after 30 days (for free users)

gemini-code-assist bot reviewed Jul 6, 2025

View reviewed changes

minor

1b8edcd

vercel bot deployed to Preview July 6, 2025 16:59 View deployment

Merge branch 'main' into r2

b7f50d2

vercel bot deployed to Preview July 6, 2025 17:42 View deployment

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		const buffer = Buffer.from(rawData, 'base64');
		const wavHeader = createWavHeader(rawData.length, options);

	const wavHeader = createWavHeader(rawData.length, options);
	const wavHeader = createWavHeader(buffer.length, options);

	Bucket: process.env.R2_BUCKET_NAME,
	Bucket: process.env.R2_BUCKET_NAME!,

Cloudflare R2 #88

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