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

[angelcaamal]

Description

Fixes #

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Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
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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 a bug in the getFhirStoreIamPolicy.js sample by correctly configuring the API client to expect JSON responses, preventing potential parsing issues. Additionally, it enhances the robustness of the sample by implementing error handling for the API call, providing clearer feedback in case of failures.

Highlights

• Response Type Configuration: The responseType for the GoogleAuth client in getFhirStoreIamPolicy.js has been explicitly set to json to ensure proper parsing of the API response.
• Error Handling Improvement: A try-catch block has been added around the getIamPolicy API call to gracefully handle potential errors and log them to the console.

Changelog

• healthcare/fhir/getFhirStoreIamPolicy.js
  • Configured the GoogleAuth client to use responseType: 'json' for API calls.
  • Implemented a try-catch block around the getIamPolicy method to catch and log errors.

Activity

• The author has confirmed adherence to contributing guidelines and the samples style guide.
• Linting checks have passed successfully.
• The author has requested that the PR be merged once approved.

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[gemini-code-assist]

Code Review

This pull request correctly sets the responseType to json and adds error handling with a try...catch block, which improves the robustness of the script. One suggestion for improving code clarity and robustness is to make the main function async and await the call to getFhirStoreIamPolicy(). While the current code may work for this simple script due to the Node.js event loop, explicitly awaiting asynchronous operations is a best practice that makes the execution flow clearer and prevents potential issues in more complex scenarios. You could also consider removing the nested getFhirStoreIamPolicy function and moving its logic directly into main for simplicity.