gRPC [Java] Master Class: Build Modern API and Microservices - [Hands-On] Errors implementation

This tutorial introduces a new square roots unary API for a calculator service. It covers the creation of RPC, implementation of server-side error handling for negative numbers, and client-side error testing. The video emphasizes the importance of documenting APIs and handling exceptions effectively.

What is the primary focus of the new API introduced for the calculator service?

• Integration of trigonometric functions

• Multiplication of matrices

• Square roots unary API

• Addition of complex numbers

In the calculator proto file, what is the response type for the square root request?

• Boolean

• Integer

• Double

• String

What should be documented about the RPC in the calculator proto file?

• The color of the UI

• The number of users

• The speed of execution

• The type of error it throws

What happens if a negative number is sent to the square root API?

• The server crashes

• An error is sent back

• The request is ignored

• A positive number is returned

Which status code is used for a negative number input in the square root API?

• Status.NOT_FOUND

• Status.INVALID_ARGUMENT

• Status.PERMISSION_DENIED

• Status.OK

What is the purpose of the 'doSquareErrorCall' method in the client-side implementation?

• To optimize the server response time

• To calculate the square root of a positive number

• To handle errors when a negative number is input

• To log successful calculations

What is printed when a runtime exception occurs in the client-side implementation?

• The API version

• The user's input

• The error stack trace

• The server status