fix(healthcare): update FHIR response handling from buffer to JSON

[angelcaamal]

Description

Fixes #

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Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
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• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
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[gemini-code-assist]

Summary of Changes

Hello @angelcaamal, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses an issue where FHIR API responses were not being correctly interpreted due to an unspecified response type. By explicitly setting the responseType to json, the application can now correctly parse and handle the FHIR resource data returned by the API, improving the reliability of healthcare data operations.

Highlights

• FHIR Response Handling: The createFhirResource function now explicitly requests JSON as the response type for FHIR API calls, ensuring proper parsing of the response body.

Changelog

• healthcare/fhir/createFhirResource.js
  • Added responseType: 'json' to the API client configuration.

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[gemini-code-assist]

Code Review

This pull request correctly fixes an issue in createFhirResource.js by adding responseType: 'json' to the Google Healthcare API client configuration, ensuring the API response is properly parsed as JSON. While this change is correct, the same issue may exist in other FHIR samples within the healthcare/fhir/ directory that also make API calls and process the response. To ensure consistency and correctness across all related samples, I recommend auditing other files (like getFhirResource.js, listFhirResourceHistory.js, etc.) and applying the same fix where needed. Additionally, there's a small typo in the PR title ('healtcare' should be 'healthcare'); correcting it would be beneficial for the commit history.