Medplum

// SPDX-FileCopyrightText: Copyright Orangebot, Inc. and Medplum contributors // SPDX-License-Identifier: Apache-2.0 import { convertCcdaToXml, convertFhirToCcda } from '@medplum/ccda'; import { allOk, ContentType } from '@medplum/core'; import type { FhirRequest, FhirResponse } from '@medplum/fhir-router'; import type { Binary, OperationDefinition } from '@medplum/fhirtypes'; import { getAuthenticatedContext } from '../../context'; import type { PatientSummaryParameters } from './patientsummary'; import { getPatientSummary, operation as patientSummaryOperation } from './patientsummary'; import { parseInputParameters } from './utils/parameters'; export const operation = { ...patientSummaryOperation, id: 'ccda-export', name: 'C-CDA Export', title: 'C-CDA Export', code: 'ccda-export', parameter: [{ name: 'type', use: 'in', min: 0, max: '1', type: 'code' }, ...patientSummaryOperation.parameter], } satisfies OperationDefinition; /** * C-CDA export operation parameters. * * Currently, these are the same as PatientSummaryParameters. */ export interface CcdaExportParameters extends PatientSummaryParameters { /** * Type of C-CDA document to generate. */ type?: 'referral' | 'discharge' | 'summary'; } /** * Handles a C-CDA export request. * * @param req - The FHIR request. * @returns The FHIR response. */ export async function ccdaExportHandler(req: FhirRequest): Promise<FhirResponse> { const ctx = getAuthenticatedContext(); const { id } = req.params; const params = parseInputParameters<CcdaExportParameters>(operation, req); // Generate the patient summary bundle const summaryBundle = await getPatientSummary(ctx, { reference: `Patient/${id}` }, params); // Convert the summary bundle to C-CDA const ccda = convertFhirToCcda(summaryBundle, { type: params.type }); // Convert C-CDA to XML const xmlString = convertCcdaToXml(ccda); // To workaround FHIR router, we conver this to a FHIR Binary // See `sendFhirResponse` in `packages/server/src/fhir/response.ts` const xmlBinary: Binary = { resourceType: 'Binary', contentType: ContentType.CDA_XML, data: Buffer.from(xmlString).toString('base64'), }; return [allOk, xmlBinary, { forceRawBinaryResponse: true }]; }