Building FHIR Apps with Typescript
summary
Publishes TypeScript FHIR definitions to DefinitelyTyped (R2, R3, R4) using the FHIR COGEN generator, shows a working $extract implementation that compiles with ts‑node and outputs three Observations (two from a repeated answer, one from an A1c), and demonstrates editor autocompletion in VS Code/neovim. Uses r4 bundle types, installs types-fire and uuid, adds type predicate guard functions, and wires a Fastify CDS Hooks endpoint plus a Firekit client call that successfully fetches a Patient from a HAPI test server.
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chapters (17)
- 0:00Introduction
- 1:38Typescript 101
- 3:48Why Typescript
- 6:00FHIR Type Library
- 9:34Editor IDE
- 10:47Examples
- 11:19Exercise 1 Dollar Sign Extract
- 12:13Requirements
- 14:21Typescript Example
- 16:01Typescript Signature
- 18:29Compile
- 19:49TypePredicate Guard
- 27:46Questionnaire
- 30:56CSHooks
- 37:41Firekit Client
- 44:04Browserbased smarts
- 45:49Handling extensions
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