gRPC [Java] Master Class: Build Modern API and Microservices - Client Streaming API Client Implementation - Part 2 - Ref

The video tutorial explains how to implement a client streaming function using gRPC. It covers creating an asynchronous client, handling server responses with a stream observer, sending data to the server, and using a countdown latch for synchronization. The tutorial concludes with testing the implementation to ensure it works correctly.

What is the primary reason for using an asynchronous client in the 'do client streaming call' function?

• To handle multiple requests simultaneously

• To support streaming client operations

• To improve server response time

• To simplify the code structure

What is the main advantage of using an asynchronous client over a blocking stub?

• It reduces server load

• It allows for synchronous operations

• It supports streaming operations

• It simplifies error handling

Which method in the response observer is called when the server has finished sending data?

• onNext

• onError

• onCompleted

• onResponse

Which of the following is NOT a method in the response observer?

• onNext

• onError

• onCompleted

• onStart

What is the role of the request observer in the client streaming call?

• To log server responses

• To manage server errors

• To send data to the server

• To receive data from the server

Why is a countdown latch used in asynchronous programming?

• To increase the speed of data processing

• To manage multiple threads

• To block the program until a condition is met

• To simplify error handling

What happens if the countdown latch is not used in the client streaming call?

• The server will not receive any data

• The program will run faster

• The client will not wait for the server's response

• The client will send duplicate data

What is the purpose of calling 'onCompleted' on the request observer?

• To handle errors in data transmission

• To notify the server that the client has finished sending data

• To log the completion of data processing

• To start sending data to the server

How does the countdown latch ensure that the client waits for the server's response?

• By blocking the client until the latch count reaches zero

• By increasing the server's processing speed

• By sending multiple requests to the server

• By pausing the server

What is the significance of setting a timeout for the countdown latch?

• To simplify the client code

• To reduce the number of server requests

• To speed up the server's response

• To prevent the client from waiting indefinitely