The answer
No. R2 supports a documented subset of the S3 API. Verify the exact operations, headers, and integrations your application needs before treating the services as interchangeable.
How does Cloudflare R2 compare with Amazon S3?
Can every Amazon S3 feature be used unchanged against Cloudflare R2?
More FAQs in How does Cloudflare R2 compare with Amazon S3?
No. Stored data, operations, and additional processing or delivery services can still create costs. Estimate the complete usage pattern rather than focusing on one fee category.
Exercise the gallery's required upload, metadata, read, and delete paths with its actual SDK configuration. Check permission and error behavior as well as successful requests.
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