Grpc Go

The Go language implementation of gRPC. HTTP/2 based RPC
Alternatives To Grpc Go
Project NameStarsDownloadsRepos Using ThisPackages Using ThisMost Recent CommitTotal ReleasesLatest ReleaseOpen IssuesLicenseLanguage
Flatbuffers20,5635287 hours ago236August 30, 2022128apache-2.0C++
FlatBuffers: Memory Efficient Serialization Library
Grpc Go18,21511,22319,8928 hours ago710August 23, 2022145apache-2.0Go
The Go language implementation of gRPC. HTTP/2 based RPC
Rpcx7,5981911023 days ago151September 06, 202212otherGo
Best microservices framework in Go, like alibaba Dubbo, but with more features, Scale easily. Try it. Test it. If you feel it's better, use it! 𝐉𝐚𝐯𝐚有𝐝𝐮𝐛𝐛𝐨, 𝐆𝐨𝐥𝐚𝐧𝐠有𝐫𝐩𝐜𝐱! build for cloud!
Tonic7,4198345a day ago30September 07, 2022144mitRust
A native gRPC client & server implementation with async/await support.
Twirp6,47335120a month ago51April 05, 20225apache-2.0Go
A simple RPC framework with protobuf service definitions
Dubbo Go4,468325 days ago151June 05, 202289apache-2.0Go
Go Implementation For Apache Dubbo .
Go Plugin4,4231,1222,1202 days ago21August 18, 202268mpl-2.0Go
Golang plugin system over RPC.
Armeria4,27410788 hours ago205September 13, 2022564apache-2.0Java
Your go-to microservice framework for any situation, from the creator of Netty et al. You can build any type of microservice leveraging your favorite technologies, including gRPC, Thrift, Kotlin, Retrofit, Reactive Streams, Spring Boot and Dropwizard.
Grpcui4,173136 days ago23August 04, 202250mitGo
An interactive web UI for gRPC, along the lines of postman
Evans3,7175a day ago48August 26, 202224mitGo
Evans: more expressive universal gRPC client
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The Go implementation of gRPC: A high performance, open source, general RPC framework that puts mobile and HTTP/2 first. For more information see the Go gRPC docs, or jump directly into the quick start.



With Go module support (Go 1.11+), simply add the following import

import ""

to your code, and then go [build|run|test] will automatically fetch the necessary dependencies.

Otherwise, to install the grpc-go package, run the following command:

$ go get -u

Note: If you are trying to access grpc-go from China, see the FAQ below.

Learn more


I/O Timeout Errors

The domain may be blocked from some countries. go get usually produces an error like the following when this happens:

$ go get -u
package unrecognized import path "" (https fetch: Get dial tcp i/o timeout)

To build Go code, there are several options:

  • Set up a VPN and access through that.

  • Without Go module support: git clone the repo manually:

    git clone $GOPATH/src/

    You will need to do the same for all of grpc's dependencies in, e.g.

  • With Go module support: it is possible to use the replace feature of go mod to create aliases for packages. In your project's directory:

    go mod edit[email protected]
    go mod tidy
    go mod vendor
    go build -mod=vendor

    Again, this will need to be done for all transitive dependencies hosted on as well. For details, refer to golang/go issue #28652.

Compiling error, undefined: grpc.SupportPackageIsVersion

If you are using Go modules:

Ensure your gRPC-Go version is required at the appropriate version in the same module containing the generated .pb.go files. For example, SupportPackageIsVersion6 needs v1.27.0, so in your go.mod file:

module <your module name>

require ( v1.27.0

If you are not using Go modules:

Update the proto package, gRPC package, and rebuild the .proto files:

go get -u{proto,protoc-gen-go}
go get -u
protoc --go_out=plugins=grpc:. *.proto

How to turn on logging

The default logger is controlled by environment variables. Turn everything on like this:


The RPC failed with error "code = Unavailable desc = transport is closing"

This error means the connection the RPC is using was closed, and there are many possible reasons, including:

  1. mis-configured transport credentials, connection failed on handshaking
  2. bytes disrupted, possibly by a proxy in between
  3. server shutdown
  4. Keepalive parameters caused connection shutdown, for example if you have configured your server to terminate connections regularly to trigger DNS lookups. If this is the case, you may want to increase your MaxConnectionAgeGrace, to allow longer RPC calls to finish.

It can be tricky to debug this because the error happens on the client side but the root cause of the connection being closed is on the server side. Turn on logging on both client and server, and see if there are any transport errors.

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