Send files from any S3-compatible bucket to an AS2 partner
DocEvent polls your S3 or S3-compatible bucket on a schedule — Cloudflare R2, MinIO, Backblaze B2, Wasabi or Amazon S3 — and sends each collected file to your trading partner over AS2, signed, encrypted and receipt-tracked. No bucket notifications, no AS2 server.
From
S3 Compatible (pull)
To
AS2
Receive endpoints
Cloud storage
Amazon S3
S3 Compatiblepull
GCS Blobpull
Azure Blobpull
Azure Data Lakepull
Azure Filespull
Servers & protocols
FTP Pull
SFTP Pull
HTTP Upload
Email
Apps & trading partners
SharePointpull
AS2trading partner
On-premise
Filerouterlocal filesystem
Agentlocal filesystem
DocEvent
routes · retries · logs
Send endpoints
Servers & protocols
FTP / FTPS
SFTP
Webhook
Email
Apps & trading partners
SharePoint
AS2trading partner
On-premise
Filerouterlocal filesystem
Agentlocal filesystem
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How S3 Compatible (pull) to AS2 routing works
Source
S3 Compatible
DocEvent checks your S3 or S3-compatible bucket on a schedule and collects new files — Cloudflare R2, MinIO, Backblaze B2, Wasabi and more.
DocEvent Channel
routes · retries · logs
Destination
AS2
Files are delivered to an AS2 trading partner — signed, encrypted, and tracked until the MDN receipt comes back.
1
File arrives via S3 Compatible (pull)
Scheduled polling of any bucket that speaks the S3 API — Amazon S3, Cloudflare R2, MinIO, Backblaze B2, Wasabi, Supabase Storage and friends (custom endpoint URL and path-style addressing supported). Collects from a prefix with filename pattern filtering, then each collected file is deleted or moved to an archive prefix. No bucket notifications or event plumbing needed.
2
Channel routes it
DocEvent's channel server matches the incoming file to your configured route, queues it for delivery, and ensures no file is ever lost — even during downstream outages.
3
Delivered to AS2
Outbound AS2 (RFC 4130) delivery to your partner's AS2 URL. Messages are signed (SHA-256, SHA-384 or SHA-512) and encrypted (AES-256, AES-192, AES-128 or 3DES for legacy partners) using the partner's certificate, and can be compressed. Ask for a synchronous MDN, an asynchronous MDN, or none at all — signed receipts are verified and recorded, and a message whose receipt never arrives is parked for reprocessing instead of being quietly lost. Re-sends carry the same Message-ID, so a partner's duplicate detection suppresses them.
Common use cases
Real workflows that teams automate with a S3 Compatible (pull) → AS2 channel.
- Transmit EDI staged in Cloudflare R2, MinIO, Backblaze B2 or Wasabi
- Add AS2 delivery to a bucket that has no event notifications configured
- Send partner documents from a self-hosted object store
- Collect from a bucket prefix on a schedule and transmit over AS2
The two ends don't have to be the same company — invite a customer or trading partner into the channel and they run the S3 Compatible (pull) or AS2 side under their own account, with their own credentials. Learn how shared channels work.
Technical details
Source:
S3 Compatible
Scheduled polling of any bucket that speaks the S3 API — Amazon S3, Cloudflare R2, MinIO, Backblaze B2, Wasabi, Supabase Storage and friends (custom endpoint URL and path-style addressing supported). Collects from a prefix with filename pattern filtering, then each collected file is deleted or moved to an archive prefix. No bucket notifications or event plumbing needed.
DocEvent checks your S3 or S3-compatible bucket on a schedule and collects new files — Cloudflare R2, MinIO, Backblaze B2, Wasabi and more.Destination:
AS2
Outbound AS2 (RFC 4130) delivery to your partner's AS2 URL. Messages are signed (SHA-256, SHA-384 or SHA-512) and encrypted (AES-256, AES-192, AES-128 or 3DES for legacy partners) using the partner's certificate, and can be compressed. Ask for a synchronous MDN, an asynchronous MDN, or none at all — signed receipts are verified and recorded, and a message whose receipt never arrives is parked for reprocessing instead of being quietly lost. Re-sends carry the same Message-ID, so a partner's duplicate detection suppresses them.
Files are delivered to an AS2 trading partner — signed, encrypted, and tracked until the MDN receipt comes back.Automatic retries with exponential back-off
Full end-to-end audit log for every file
Zero-code setup via the DocEvent UI
Reliable delivery even during downstream outages