$import & /fhir/$import

$import is an implementation of the upcoming FHIR Bulk Import API. This is an asynchronous Operation, which returns url to monitor progress. There are two versions of this operation - /fhir/$import accepts data in FHIR format, /$import works with Aidbox format.

Resource requirements for all import operations:

OperationidresourceType

/$import

Required

Not required

/fhir/$import

Required

Not required

Keep in mind that $import does not validate inserted resources for the sake of performance. Pay attention to the structure of data you insert and use the correct URL for your data format, i.e.: use /fhir prefix for FHIR data.

Please consider using Asynchronous validation API to validate data after $import

Example

POST /fhir/$import
Accept: text/yaml
Content-Type: text/yaml

id: synthea
contentEncoding: gzip
inputs:
- resourceType: Encounter
  url: https://storage.googleapis.com/aidbox-public/synthea/100/Encounter.ndjson.gz
- resourceType: Organization
  url: https://storage.googleapis.com/aidbox-public/synthea/100/Organization.ndjson.gz
- resourceType: Patient
  url: https://storage.googleapis.com/aidbox-public/synthea/100/Patient.ndjson.gz

Parameters

ParameterDescription

id

Identifier of the import

contentEncoding

Supports gzip or plain (non-gzipped .ndjson files)

inputs

Resources to import

update

Update history for updated resources (false by default)

You can monitor progress by using id you provided in request body.

GET /BulkImportStatus/synthea

If you didn't provide id in request body, you can use content-location in response header.

Result

ParameterTypeDescription

id

string

Identifier of the import

resourceType

string

Type of resource where the progress of import operation is recorded. Possible value: BulkImportStatus

meta

object

meta.createdAt

string

Timestamp string at which the resource was created

meta.lastUpdated

string

Timestamp string at which the resource was updated last time

meta.versionId

string

Version id of this resource

contentEncoding

string

gzip or plain

time

object

time.start

string

Timestamp string at which the operation started in ISO format

time.end

string

Timestamp string at which the operation was completed in ISO format. Only present after the entire import operation has been completed

type

string

Data format type to be loaded.

Possible values: aidbox, fhir

inputs

object[]

inputs[].url

string

URL from which load resources

inputs[].resourceType

string

Resource type to be loaded

inputs[].status

string

Load status for each input. Only present after the operation for this input has been completed.

Possible values: finished, failed

inputs[].total

integer

The number of loaded resources. Only present after the operation for this input has been completed successfully

inputs[].ts

string

Timestamp string at which the loading was completed in ISO format. Only present after the operation for this input has been completed

inputs[].duration

integer

Duration of loading in milliseconds. Only present after the operation for this input has been completed successfully

status

string

Load status for all inputs.

Only present after the entire import operation has been completed. After completed, this value is always finished, regardless of whether each input is finished or failed.

Possible value: finished

Note

For performance reasons $import does raw upsert into the resource table without history update. If you want to store the previous version of resources in history, please set update = true

With this flag, Aidbox will update the history for updated resources. For each resource:

  • if the resource was not present in DB before the import, the import time will be the same.

  • if the resource was present in DB before and it's updated during the import, it will double the time importing this resource because of the additional insert operation into the _history table.

/v2/$import on top of the Workflow Engine

Improved version of the $import operation, to enhance its reliability and performance. By implementing this operation on top of the Workflow Engine, it allows the $import operation to be more reliable, continue work after restarts, and handle errors correctly. The Task API also enables the operation to accept multiple requests and execute them from a queue while simultaneously processing multiple items from the "inputs" field (with a default of two items processed simultaneously). Users can monitor the status of the operation through the Monitoring.

In the future, the ability to list and cancel $import operations will be added, as well as detailed progress info on the operation.

Changes in the new $import API:

  1. Executing more than one import with the same id is not possible. Users can omit the `id` field from the request, allowing Aidbox to generate the ID.

  2. The status of the workflow can be accessed with a GET request to /v2/$import/<id> instead of /BulkImportStatus/<id>. The URL for the import status is returned in the content-location header of the $import request.

This feature is not available in Multibox

To start import make a POST request to /v2[/fhir]/$import:

POST /v2/fhir/$import
Accept: text/yaml
Content-Type: text/yaml

id: synthea
contentEncoding: gzip
inputs:
- resourceType: Encounter
  url: https://storage.googleapis.com/aidbox-public/synthea/100/Encounter.ndjson.gz
- resourceType: Organization
  url: https://storage.googleapis.com/aidbox-public/synthea/100/Organization.ndjson.gz
- resourceType: Patient
  url: https://storage.googleapis.com/aidbox-public/synthea/100/Patient.ndjson.gz

Parameters

ParameterDescription

id

Identifier of the import. If you don't provide this, the id will be auto-generated. You can check it on Content-Location header in the response

contentEncoding

Supports gzip or plain (non-gzipped .ndjson files)

inputs (required)

Resources to import

  • url - URL from which load resources

  • resourceType - Resource type to be loaded

update

Update history for updated resources (false by default)

allowedRetryCount

Set the maximum number of import retries for each input (2 by default)

To check the status of the import make a GET request to /v2/$import/<id>:

GET /v2/$import/<id>

Import local file

Sometimes you want to import local file into local Aidbox. Possible solutions for local development:

Add volume to the aidboxone container (not aidboxdb):

volumes:
- ./Encounter.ndjson.gz:/resources/Encounter.ndjson.gz
# url: file:///resources/Encounter.ndjson.gz

Use tunneling e.g. ngrok:

python3 -m http.server 
ngrok http 8000
# url: https://<...>.ngrok-free.app/Encounter.ndjson.gz

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