7e1b0585e7
Find Document References ahora acepta un parametro opcional 'type' (IPS, MeOW, IT, o un token FHIR system|code) para buscar solo el tipo de documento pedido. Se extrae el mapa de tipos de documento a constants/documentTypes.js para compartirlo entre ITI-65 e ITI-67. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
89 lines
3.6 KiB
JavaScript
89 lines
3.6 KiB
JavaScript
const createError = require('http-errors');
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const config = require('../config');
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const { getBusToken } = require('../utils/busAuth');
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const { findPatient } = require('../services/patient');
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const { findDocumentReferenceByPatient } = require('../services/documentReference');
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const { DOCUMENT_TYPES } = require('../constants/documentTypes');
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const NATIONAL_ID_SYSTEM = 'https://federador.msal.gob.ar/patient-id';
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/**
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* Extracts the Federador national identifier from a Patient resource.
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*/
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function extractNationalIdentifier(patient) {
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const identifiers = Array.isArray(patient.identifier) ? patient.identifier : [];
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return identifiers.find(id => id.system === NATIONAL_ID_SYSTEM) || null;
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}
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/**
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* Resuelve el parámetro de búsqueda `type` a un token FHIR (`system|code`).
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* Acepta tanto las etiquetas conocidas (IPS, MeOW, IT — case-insensitive)
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* como un token FHIR ya armado (`system|code` o `code`), que se pasa tal cual
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* para no acoplar la búsqueda a los tipos de documento ya conocidos.
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*/
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function resolveDocumentType(rawType) {
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if (!rawType) return undefined;
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const knownType = Object.values(DOCUMENT_TYPES).find(
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t => t.label.toLowerCase() === rawType.toLowerCase()
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);
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return knownType ? `${knownType.system}|${knownType.code}` : rawType;
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}
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/**
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* ITI-67: Find Document References (MHD)
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*
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* GET /fhir/DocumentReference?subject=:localId
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* GET /fhir/DocumentReference?patient.identifier=:localId
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* GET /fhir/DocumentReference?subject=:localId&type=:type
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*
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* Flow:
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* 1. Fetch the Patient from the Bus by local ID to obtain the national identifier.
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* 2. Search DocumentReferences in the Bus by that national identifier
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* (opcionalmente filtrando por tipo de documento).
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* 3. Return the resulting Bundle.
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*
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* Required query parameter (one of):
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* subject — local Patient ID in the Bus.
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* patient.identifier — same semantics, alternate FHIR parameter name.
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*
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* Optional query parameter:
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* type — tipo de documento a buscar. Acepta las etiquetas conocidas
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* (IPS, MeOW, IT) o un token FHIR (`system|code`, ej: `http://loinc.org|60591-5`).
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* Si se omite, devuelve documentos de cualquier tipo.
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*/
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async function listDocumentReference(req, res, next) {
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try {
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const localPatientIdentifier = req.query.subject ?? req.query['patient.identifier'];
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if (!localPatientIdentifier) {
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throw createError(400, 'Missing required query parameter: subject or patient.identifier');
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}
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const documentType = resolveDocumentType(req.query.type);
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const token = await getBusToken(
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config.bus.url,
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config.bus.jwtSecret,
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config.bus.issuer,
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[
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config.bus.mpiScope,
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config.bus.documentRegistryScope
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].join(',')
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);
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// 1. Obtengo el identificador nacional del paciente en forma de referencia
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const patientSearchset = await findPatient(token, { identifier: localPatientIdentifier });
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if (!patientSearchset) {
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throw createError(422, 'Could not resolve national identifier for the given patient');
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}
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const patientNationalId = patientSearchset.entry[0].fullUrl
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// 2. Obtengo el listado de entradas del indice de atenciones asociadada al id de paciente
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// (y, si se pidió, al tipo de documento).
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const documentReferenceSearchset = await findDocumentReferenceByPatient(token, patientNationalId, documentType)
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res.status(200).json(documentReferenceSearchset);
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} catch (err) {
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next(err);
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}
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}
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module.exports = { listDocumentReference };
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