igpop is Sugar FHIR Profiling

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• Demo
• Example

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Specification

DRY FHIR profiling for programming beings

• 80/20 of profiling
• convention over configuration
• to be manually written
• Data DSL - no grammars and parsers

Features

• generate JSON Schema
• generate FHIR StructureDefinition, ValueSets etc
• generate IG static site
• linter for profiles

New Project

Install igpop util and start your project

src/
  Patient.yaml <- basic profile for Patient
  Observation/smoking-status.yaml <- smoking status profile for Observation
  vs.smoking-status.yaml <- valuset for smoking status
  vs.smoking-status.csv <- you can put concepts as a csv file
  ...
build/
  fhir/ <- SD, VS etc
  json-schema/ <- json-schema
  igpop/ <- igpop build
  site/  <- static site
ig.yaml <- manifest file
package.json

Profiles

You create basic profile for resource type by creating src/<resource-type>.yaml file.

For example src/Patient.yaml is your basic Patient. Id and url for generated structure definition will be deduced from ig.yaml id and url by convetion.

Basic structure of your profile is:

# profile description
description: ...
  
# constraints & extensions definitions
elements: ...

# REST API definitions
api: ...

# Examples section
examples: ...

elements

Object which defines element selectors to put constraints or define extensions. Complex elements can have nested elements definitions.

Each element can have keys:

• description - description
• type - primitive or complex type name
• valuset - binding to valueset
• elements - nested elements for complex elements
• constant - check for equality
• Collections:
  • maxItems & minItems - constraints for collection
  • contains - rule wich check inclusion of pattern in collection
• Single elements
  • required - make element required
  • match - rule wich check inclusion of pattern

Example src/Patient.yaml:

description: My Basic Patient Profile
elements:
  identifier: # []
    # require at least one element in collection
    minItems: 1
    elements:
      # require value in identifier
      value: { required: true }
      system:
        required: true
        # define binding and inline definition for valuset
        valueset:
          id: patient-systems
          strength: extensible
          system: local
          concepts:
          - {code: 'ssn'}
          - {code: 'driver-license}
  name:
    minItems: 1
    elements:
      family: { required: true }
      given:  { minItems: 1 }
  # if element listed without attributes - that means 'mustSupport' will be added
  birthDate: {}

Development notes

This section is for people doing development on this package.

Local development

Run repl in project's home directory:

make repl

Then connect to repl, eval ./src/igpop/site/core.clj file and it's lines:

(def hm (.getAbsolutePath (io/file  "example")))

and

(def srv (start hm 8899))

Open browser on localhost:8899.

Building static pages

Build jar file:

make build

Build static pages:

cd example
java -jar "../npm/igpop/bin/igpop.jar" build "/igpop" igpop.core