chore(grpc): migrate from grpc to @grpc/grpc-js in getting-started-grpc example

[hivanalejandro]

Description

Fixes b/410998134

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)
• Please merge this PR for me once it is approved

[gemini-code-assist]

Hello @hivanalejandro, 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!

Summary of Changes

This pull request migrates the gRPC implementation in the getting-started-grpc example from the deprecated grpc package to @grpc/grpc-js. This involves updating the dependencies in package.json, and modifying the client and server code to use the new @grpc/grpc-js package and @grpc/proto-loader for loading protobuf definitions. The bind call on the server is also updated to bindAsync.

Highlights

• Dependency Update: The grpc dependency is replaced with @grpc/grpc-js and @grpc/proto-loader in package.json.
• Code Migration: The client and server code are updated to use @grpc/grpc-js and @grpc/proto-loader for loading protobuf definitions. This includes changes to how the proto file is loaded and how the server is started.
• API Change: The server.bind call is updated to server.bindAsync in server.js to align with the new gRPC implementation.

Changelog

• endpoints/getting-started-grpc/client.js
  • Replaced grpc with @grpc/grpc-js and @grpc/proto-loader.
  • Updated protobuf loading to use protoLoader.loadSync and grpc.loadPackageDefinition.
• endpoints/getting-started-grpc/package.json
  • Replaced grpc dependency with @grpc/grpc-js and added @grpc/proto-loader.
  • Removed trailing newline.
• endpoints/getting-started-grpc/server.js
  • Replaced grpc with @grpc/grpc-js and @grpc/proto-loader.
  • Updated protobuf loading to use protoLoader.loadSync and grpc.loadPackageDefinition.
  • Updated server.bind to server.bindAsync.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in issue comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist is currently in preview and may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments to provide feedback.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

---

gRPC's call,
Async binds enthrall,
New versions arise,
Old code slowly dies,
Progress for us all.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

The pull request migrates the getting-started-grpc example from the deprecated grpc package to @grpc/grpc-js. This is a necessary update to ensure the example remains functional and uses the recommended gRPC library for Node.js. The changes look good overall, but there are a few minor points to consider.

Summary of Findings

• gRPC method call: The addProtoService method is deprecated and has been replaced with addService. The code has been updated to use addService.
• Asynchronous binding: The bind method is deprecated and has been replaced with bindAsync. The code has been updated to use bindAsync.

Merge Readiness

The pull request is almost ready to be merged. The migration from the deprecated grpc package to @grpc/grpc-js is well-handled. Please address the comments regarding the deprecated methods to ensure the code is up-to-date with the latest gRPC practices. I am unable to directly approve the pull request, and recommend that others review and approve this code before merging.

[eapl-gemugami]

It runs well in my local environment, good work!
I found a question while trying to run it, and a warning which you might address.

[eapl-gemugami]

LGTM