3/2/2024 0 Comments Golang grpc vs restOur first approach was to use Go language library net/rpc and implement custom encoding in it. So, our goal was to implement communication using RPC over custom encoding utilizing Flatbuffers. Responses can contain millions of entities and binary blob values.Īnd the fact that Flatbuffers doesn’t need to recreate the entire information in language specific data structures is very helpful for both memory and speed.Īlso, TCP is always going to be faster than HTTP, because HTTP is one extra layer on top of TCP. How is Flatbuffers better than Protocol Buffers? FlatBuffers does not need a parsing/unpacking step to a secondary representation before you can access data, often coupled with per-object memory allocation. The only memory needed to access your data is that of the buffer. What sets FlatBuffers apart is that it represents hierarchical data in a flat binary buffer in such a way that it can still be accessed directly without parsing/unpacking, while also still supporting data structure evolution (forwards/backwards compatibility). ![]() ![]() To keep our latency of communication low, we use a new form of serialization library called Flatbuffers. This means our data is distributed among nodes in the cluster.Įxecuting a query means multiple nodes are communicating with each other. , we aim to build a low latency, distributed graph database. We built up a basic server that accepts incoming messages from a client and then returns a response to those clients.Custom encoding: Go implementation in net/rpc vs grpc and why we switched So, in this tutorial, we’ve looked at how you can build out a simple gRPC client and server in Go. Body)Īwesome! You have successfully added a new gRPC endpoint! Conclusion Printf( "Response from server: %s", response. Fatalf( "Error when calling Broadcast Message: %s", err) "log" "/x/net/context" "/grpc" "/tutorialedge/go-grpc-beginners-tutorial/chat" We will start off by writing the logic within our main function to listen on a port for incoming TCP connections: Once we have a simple server up and running we can set about creating a gRPC client that will be able to interact with it. Let’s start off by defining a really simple gRPC server in Go. There are options to use tools such as envoy to reverse proxy standard JSON requests and transcode them into the right data format but this is an additional dependency that can be tricky to set up for simple projects. You do have options that make this possible, but it’s not something that’s readily available natively. You should bear in mind that whilst gRPC does allow you to utilize these newer bits of technology, it is more challenging prototyping a gRPC service due to the fact that tools like the Postman HTTP client cannot be used in order to easily interact with your exposed gRPC service. Or even bidirectional-streaming should you wish. With gRPC you can utilize HTTP/2 capabilities such as server-side streaming, client-side streaming.gRPC utilizes the protocol buffer data format as opposed to the standard JSON data format. ![]() gRPC utilizes HTTP/2 whereas REST utilizes HTTP 1.1.Whilst REST and gRPC are somewhat similar, there are some fundamental differences in how they work that you should be aware of. It’s similar to REST API communication in the sense that with it, you are effectively exposing functionality within your app to other apps using a HTTP connection as the communication medium. More specifically, it allows us to expose methods within our application that we want other applications to be able to invoke. Remote Procedure Calls are something that we use within distributed systems that allow us to communicate between applications. So, before we dive in, we first need to understand what gRPC is, how it works and so on.ĭefinition - gRPC is a modern, open source remote procedure call (RPC) framework that can run anywhere You will have to ensure that $GOPATH/bin is on your environment path so that you can use the protoc tool later on in this tutorial. Protocol Buffers v3 installed - this can be done by running go get -u /golang/protobuf/protoc-gen-go.Before you can complete this tutorial, you will have to have the following installed on your machine:
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