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Editor to share with you how the gRPC server creation process is, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

GRPC server creates key process analysis:

NettyServer instance creation:

To create a gRPC server, you first need to initialize NettyServer, which is a HTTP/2 server encapsulated by gRPC based on the Netty 4.1 HTTP/2 stack.

NettyServer instances are built by NettyServerBuilder's buildTransportServer method

After the construction of NettyServer is completed, listen to the specified Socket address to realize the request message access based on HTTP/2 protocol.

Bind the service interface implementation class defined by IDL:

The difference between gRPC and some other RPC frameworks is that the service interface implements the invocation of classes not through dynamic proxy and reflection mechanisms, but through proto tools to generate code.

When the server starts, register the service interface implementation class instance with the service registry within the gRPC.

After the request message access, the service instance registered at startup can be called directly according to the service name and method name, without the need to call through reflection, so the performance is better.

GRPC service instance (ServerImpl) construction:

For example, thread pool resources of Netty, thread pools of gRPC, internal service registration classes (InternalHandlerRegistry), etc.

ServerImpl is responsible for scheduling and processing messages on the entire gRPC server.

During the creation of a ServerImpl instance, the objects that the server depends on are initialized.

After ServerImpl initialization is complete, you can call the start method of NettyServer to start the HTTP/2 server and receive the service invocation request from the gRPC client.

These are all the contents of the article "what is the process of creating a gRPC server?" Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

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