garage/doc/book/src/reference_manual/s3_compatibility.md

# S3 Compatibility status

## Global S3 features

Implemented:

- path-style URLs (`garage.tld/bucket/key`)
- vhost-style URLs (`bucket.garage.tld/key`)
- putting and getting objects in buckets
- multipart uploads
- listing objects
- access control on a per-access-key-per-bucket basis
- CORS headers on web endpoint

Not implemented:

- object-level ACL
- [object versioning](https://git.deuxfleurs.fr/Deuxfleurs/garage/issues/166)
- encryption
- most `x-amz-` headers


## Endpoint implementation

All APIs that are not mentionned are not implemented and will return a 400 bad request.

| Endpoint                     | Status                           |
|------------------------------|----------------------------------|
| AbortMultipartUpload         | Implemented                      |
| CompleteMultipartUpload      | Implemented                      |
| CopyObject                   | Implemented                      |
| CreateBucket                 | Implemented                      |
| CreateMultipartUpload        | Implemented                      |
| DeleteBucket                 | Implemented                      |
| DeleteBucketCors             | Implemented                      |
| DeleteBucketWebsite          | Implemented                      |
| DeleteObject                 | Implemented                      |
| DeleteObjects                | Implemented                      |
| GetBucketCors                | Implemented                      |
| GetBucketLocation            | Implemented                      |
| GetBucketVersioning          | Stub (see below)                 |
| GetBucketWebsite             | Implemented                      |
| GetObject                    | Implemented                      |
| HeadBucket                   | Implemented                      |
| HeadObject                   | Implemented                      |
| ListBuckets                  | Implemented                      |
| ListObjects                  | Implemented, bugs? (see below)   |
| ListObjectsV2                | Implemented                      |
| PutObject                    | Implemented                      |
| PutBucketCors                | Implemented                      |
| PutBucketWebsite             | Partially implemented (see below)|
| UploadPart                   | Implemented                      |


- **GetBucketVersioning:** Stub implementation (Garage does not yet support versionning so this always returns
"versionning not enabled").

- **ListObjects:** Implemented, but there isn't a very good specification of what `encoding-type=url` covers so there might be some encoding bugs. In our implementation the url-encoded fields are in the same in ListObjects as they are in ListObjectsV2.

- **PutBucketWebsite:** Implemented, but only stores the index document suffix and the error document path. Redirects are not supported.