[miniflare] Expose R2 via an S3-compatible API locally#14280

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tahmid-23 wants to merge 26 commits into

cloudflare:mainfrom

tahmid-23:r2-local-s3-staged

Commits on Jun 12, 2026

[miniflare] Match r2.dev's write and precondition errors on the local R2 public endpoint

tahmid-23
and
claude
committed
[miniflare] Reject malformed, multiple, and inverted ranges with 400 on the local R2 public endpoint

tahmid-23
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claude
committed
[miniflare] Honor Range on HEAD requests to the local R2 public endpoint

tahmid-23
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claude
committed

Commits on Jun 16, 2026

[miniflare] Fix Content-Range for suffix ranges on the local R2 public endpoint

tahmid-23
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claude
committed
[miniflare] Reject unsatisfiable ranges with 416 on the local R2 public endpoint

tahmid-23
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claude
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[miniflare] Decode object keys exactly once on the local R2 public endpoint

tahmid-23
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claude
committed
[miniflare] Cancel unread object bodies when serving R2 objects

tahmid-23
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claude
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Add a changeset for the local R2 public bucket fixes and body cancellation

tahmid-23
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claude
committed
[wrangler] Add experimental_local_s3_credentials to r2_buckets config

tahmid-23
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claude
committed
[miniflare] Generalize namespaceEntries over the entry type

tahmid-23
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claude
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[miniflare] Scaffold the local S3-compatible endpoint for R2 buckets

tahmid-23
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claude
committed
[miniflare] Add the shared AWS SigV4 verification core to the local S3 endpoint

tahmid-23
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claude
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[miniflare] Verify Authorization-header SigV4 signatures on the local S3 endpoint

tahmid-23
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claude
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[miniflare] Verify presigned-URL SigV4 signatures on the local S3 endpoint

tahmid-23
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claude
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[miniflare] Route S3 requests through detected operations, serving R2's errors for unimplemented surfaces

tahmid-23
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claude
committed
[miniflare] Extract shared R2 object serving into serve.worker.ts

tahmid-23
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claude
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[miniflare] Implement object reads on the local S3 endpoint

tahmid-23
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claude
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[miniflare] Implement object writes on the local S3 endpoint

tahmid-23
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claude
committed
[miniflare] Implement bucket reads on the local S3 endpoint

tahmid-23
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claude
committed
[miniflare] Implement object listing on the local S3 endpoint

tahmid-23
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claude
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[miniflare] Implement DeleteObjects on the local S3 endpoint

tahmid-23
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claude
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[miniflare] Implement CopyObject on the local S3 endpoint

tahmid-23
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claude
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[miniflare] Implement multipart operations on the local S3 endpoint

tahmid-23
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claude
committed
[miniflare] Implement ListBuckets on the local S3 endpoint

tahmid-23
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claude
committed
[wrangler] Serve buckets with experimental_local_s3_credentials over the local S3 endpoint

tahmid-23
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claude
committed
Add changesets for the local R2 S3 endpoint

tahmid-23
and
claude
committed

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[miniflare] Expose R2 via an S3-compatible API locally#14280

[miniflare] Expose R2 via an S3-compatible API locally#14280
tahmid-23 wants to merge 26 commits into
cloudflare:mainfrom
tahmid-23:r2-local-s3-staged

Commits on Jun 12, 2026

[miniflare] Match r2.dev's write and precondition errors on the local R2 public endpoint

[miniflare] Reject malformed, multiple, and inverted ranges with 400 on the local R2 public endpoint

[miniflare] Honor Range on HEAD requests to the local R2 public endpoint

Commits on Jun 16, 2026

[miniflare] Fix Content-Range for suffix ranges on the local R2 public endpoint

[miniflare] Reject unsatisfiable ranges with 416 on the local R2 public endpoint

[miniflare] Decode object keys exactly once on the local R2 public endpoint

[miniflare] Cancel unread object bodies when serving R2 objects

Add a changeset for the local R2 public bucket fixes and body cancellation

[wrangler] Add experimental_local_s3_credentials to r2_buckets config

[miniflare] Generalize namespaceEntries over the entry type

[miniflare] Scaffold the local S3-compatible endpoint for R2 buckets

[miniflare] Add the shared AWS SigV4 verification core to the local S3 endpoint

[miniflare] Verify Authorization-header SigV4 signatures on the local S3 endpoint

[miniflare] Verify presigned-URL SigV4 signatures on the local S3 endpoint

[miniflare] Route S3 requests through detected operations, serving R2's errors for unimplemented surfaces

[miniflare] Extract shared R2 object serving into serve.worker.ts

[miniflare] Implement object reads on the local S3 endpoint

[miniflare] Implement object writes on the local S3 endpoint

[miniflare] Implement bucket reads on the local S3 endpoint

[miniflare] Implement object listing on the local S3 endpoint

[miniflare] Implement DeleteObjects on the local S3 endpoint

[miniflare] Implement CopyObject on the local S3 endpoint

[miniflare] Implement multipart operations on the local S3 endpoint

[miniflare] Implement ListBuckets on the local S3 endpoint

[wrangler] Serve buckets with experimental_local_s3_credentials over the local S3 endpoint

Add changesets for the local R2 S3 endpoint