Dev Days

Let's Build a Synthetic Dataset

In a classroom setting, the instructor will walk you through the process of using, configuring, and customizing SyntheaTM – an open-source synthetic patient generator – to create a patient and provider cohort and all the FHIR DSTU2, STU3, or R4 resources you need for your next software development, testing or integration event…

Prerequisites

• Git
  • https://git-scm.com/downloads
• Java JDK 8, 11, 12
  • https://adoptopenjdk.net

Clone and Build the Repository

git clone https://github.com/synthetichealth/synthea.git
cd synthea
./gradlew test

Estimate 5-10 minutes

Browse the Diseases

Browse the diseases in the Module Builder

The instructor will make a change to the CHF module. Follow along.

Download the JSON, and overwrite your current module with the changes.

cp ~/Downloads/congestive_heart_failure.json ./src/main/resources/modules/congestive_heart_failure.json
./run_synthea -p 10

When finished, undo the changes:

git checkout -- src

Run Synthea

./run_synthea –s 0

Look at the FHIR record in ./output/fhir

Configuring Properties

Examine the configurable properties in the synthea.properties file.

POST our patient record to a server

curl http://hapi.fhir.org/baseR4 --data-binary "@/Users/Path/synthea/output/fhir/Brigitte394_Jaskolski867_f45fe01f-de94-4587-97f0-4cbd39f775c5.json" -H "Content-Type: application/fhir+json" 

Generate a lot of data

./run_synthea -p 10000 Washington

Estimate 5-10 minutes and 5-10 GB storage

POST all the data to a server

cd output/fhir/
for file in *; do curl --write-out '.' http://hapi.fhir.org/baseR4 --data-binary "@$file" -H "Content-Type: application/fhir+json" > /dev/null; done;

Estimate: long time...