Export To S3

S3 export writes files to object storage for warehouse, lakehouse, or downstream batch ingestion. The destination form also supports S3-compatible storage targets.

Open Export Settings

In the dashboard, open Settings, then Export.

Export destinations

Add Object Storage

Click Add Object Storage and choose AWS or an S3-compatible target.

Add S3 destination

Enter:

Destination name.
Endpoint.
Region.
Bucket.
Access key ID.
Secret access key.
File type: NDJSON or zipped NDJSON.

Medblocks tests the bucket connection before saving.

File Format

For NDJSON, each line is one FHIR resource JSON object.

{"resourceType":"Patient","id":"example-patient"}
{"resourceType":"Observation","id":"example-observation","status":"final"}

Downstream systems can stream these files into a warehouse without parsing a large JSON array.

Backfill And Deltas

When a destination is first added, Medblocks exports existing data. Later pulls send new data based on the destination watermark.

If a run is partial, retry only the failed work from the dashboard.

Monitor Runs

Open the destination detail page to see run history and errors.

Export history

Operational Notes

Rotate storage credentials from your cloud provider and update the destination.
Disable a destination when you want to pause delivery without deleting history.
Use retry after fixing bucket permissions, auth, or network errors.

Read Export for the shared model.
Read Background Pull for the upstream retrieval step.