How can gRPC be used in a microservices architecture ?

Pragya Keshap answered on February 3, 2023 Popularity 6/10 Helpfulness 1/10

answer How can gRPC be used in a microservices architecture ?

How can gRPC be used in a microservices architecture ?

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In a microservices architecture, gRPC can be used to allow microservices to communicate with each other efficiently and securely.

Each microservice can implement a gRPC server that exposes a set of methods that can be called by other microservices.

The methods can be defined in a Protocol Buffer service definition file, which specifies the input and output types for each method.

The microservices can then use a gRPC client to call the methods exposed by other microservices.

public class ProductService extends ProductServiceGrpc.ProductServiceImplBase {

  private final ProductRepository productRepository;

  public ProductService() {
    this.productRepository = new ProductRepository();
  }

  @Override
  public void getProduct(
      GetProductRequest request, StreamObserver<GetProductResponse> responseObserver) {


    var productId = request.getProductId();
    Optional<ProductInfo> productInfo = productRepository.get(productId);

    if (productInfo.isPresent()) {
      var product = productInfo.get();

      var getProductResponse =
          GetProductResponse.newBuilder()
              .setName(product.getName())
              .setDescription(product.getDescription())
              .setPrice(product.getPrice())
              .build();
      responseObserver.onNext(getProductResponse);
      responseObserver.onCompleted();
    } else {
      responseObserver.onError(new StatusException(Status.NOT_FOUND));
    }
   
  }
}

https://techdozo.dev/grpc-for-microservices-communication/

Popularity 6/10 Helpfulness 1/10 Language csharp

Source: Grepper

Tags: architecture c# grpc microservices

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Contributed on Feb 03 2023

Pragya Keshap

0 Answers Avg Quality 2/10

How can gRPC be used in a microservices architecture ?

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