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

[angelcaamal]

Description

Fixes #

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Checklist

• I have followed guidelines from CONTRIBUTING.MD and Samples Style Guide
• Tests pass: npm test (see Testing)
• Lint pass: npm run lint (see Style)
• Required CI tests pass (see CI testing)
• These samples need a new API enabled in testing projects to pass (let us know which ones)
• These samples need a new/updated env vars in testing projects set to pass (let us know which ones)
• This pull request is from a branch created directly off of GoogleCloudPlatform/nodejs-docs-samples. Not a fork.
• This sample adds a new sample directory, and I updated the CODEOWNERS file with the codeowners for this sample
• This sample adds a new sample directory, and I created GitHub Actions workflow for this sample
• This sample adds a new Product API, and I updated the Blunderbuss issue/PR auto-assigner with the codeowners for this sample
• Please merge this PR for me once it is approved

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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 a bug in the getFhirResourceHistory function within the healthcare samples. By explicitly configuring the API client to expect a JSON response, it resolves an issue where the API's output might have been incorrectly processed as a binary buffer. This change improves the reliability and correctness of data retrieval from the FHIR API.

Highlights

• Bug Fix: Corrected the getFhirResourceHistory function to explicitly set the responseType to 'json' when making API requests to the Google Cloud Healthcare API.
• API Response Handling: Ensured that the API response is parsed as a JSON object instead of a raw buffer, resolving potential issues with data interpretation.

Changelog

• healthcare/fhir/getFhirResourceHistory.js
  • Set responseType to 'json' for API requests.

Activity

• No specific activity has been recorded for this pull request yet, beyond its initial creation.

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[gemini-code-assist]

Code Review

The pull request correctly addresses the issue of setting the responseType to json for the getFhirResourceHistory function, which is crucial for proper data handling. The change is minimal and directly resolves the problem as described in the title.