fix(healthcare): set responseType to JSON instead of Buffer in exportFhirResources.js

[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, 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 in the FHIR resource export functionality by ensuring that API responses are correctly parsed as JSON and by implementing more comprehensive error handling. These changes improve the reliability and diagnostic capabilities of the export process, making it easier to understand the outcome of an export operation, whether it succeeds, fails, or is still in progress.

Highlights

• API Client Configuration: The Google API client for healthcare operations has been configured to explicitly expect JSON responses by setting responseType: 'json'.
• Robust Error Handling: A try-catch block has been introduced around the FHIR resource export operation to gracefully handle potential errors during the export process.
• Improved LRO Status Reporting: The logic for checking the status of the long-running operation (LRO) has been enhanced to provide more specific feedback, distinguishing between successful completion, failure with an error message, and an ongoing operation.

Changelog

• healthcare/fhir/exportFhirResources.js
  • Configured the Google API client to expect JSON responses.
  • Wrapped the FHIR export operation in a try-catch block for error handling.
  • Updated the long-running operation (LRO) status check to provide detailed feedback on success, failure, or ongoing status.

Activity

• The pull request was opened by angelcaamal to fix an issue related to FHIR resource export.

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[gemini-code-assist]

Code Review

This pull request correctly fixes an issue by setting the responseType to json for the Healthcare API client, ensuring the response is parsed correctly. The added try...catch block and improved status checking logic also enhance the sample's robustness. I've included a suggestion to replace the fixed-duration sleep with a polling mechanism for the long-running operation, which will make the sample more reliable and demonstrate a best practice for handling asynchronous operations in Google Cloud. Additionally, the suggestion to use console.error for logging failures aligns with repository guidelines for error reporting.