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grpc-go

Sun, 14 Sep 2025 15:24:41 +0800

grpc/grpc-go

gRPC-Go

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.

Prerequisites

Go: any one of the two latest major releases.

Installation

Simply add the following import to your code, and then go [build|run|test] will automatically fetch the necessary dependencies:

`1`	`import "google.golang.org/grpc"`

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

Learn more

Go gRPC docs, which include a quick start and API reference among other resources
Low-level technical docs from this repository
Performance benchmark
Examples
Contribution guidelines

FAQ

I/O Timeout Errors

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

1
2

$ go get -u google.golang.org/grpc
package google.golang.org/grpc: unrecognized import path "google.golang.org/grpc" (https fetch: Get https://google.golang.org/grpc?go-get=1: dial tcp 216.239.37.1:443: i/o timeout)

To build Go code, there are several options:

Set up a VPN and access google.golang.org through that.
With Go module support: it is possible to use the replace feature of go mod to create aliases for golang.org packages. In your project’s directory:
1 2 3 4

go mod edit -replace=google.golang.org/grpc=github.com/grpc/grpc-go@latest go mod tidy go mod vendor go build -mod=vendor
Again, this will need to be done for all transitive dependencies hosted on golang.org as well. For details, refer to golang/go issue #28652.

Compiling error, undefined: grpc.SupportPackageIsVersion

Please update to the latest version of gRPC-Go using go get google.golang.org/grpc.

How to turn on logging

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

1
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$ export GRPC_GO_LOG_VERBOSITY_LEVEL=99
$ export GRPC_GO_LOG_SEVERITY_LEVEL=info

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:

mis-configured transport credentials, connection failed on handshaking
bytes disrupted, possibly by a proxy in between
server shutdown
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.

gofr

Wed, 16 Apr 2025 15:29:42 +0800

gofr-dev/gofr

GoFr

GoFr: An Opinionated Microservice Development Framework

Listed in the CNCF Landscape

🎯 Goal

GoFr is designed to simplify microservice development, with key focuses on Kubernetes deployment and out-of-the-box observability. While capable of building generic applications, microservices remain at its core.

💡 Key Features

Simple API Syntax
REST Standards by Default
Configuration Management
Observability (Logs, Traces, Metrics)
Inbuilt Auth Middleware & Custom Middleware Support
gRPC Support
HTTP Service with Circuit Breaker Support
Pub/Sub
Health Check for All Datasources
Database Migration
Cron Jobs
Support for Changing Log Level Without Restarting
Swagger Rendering
Abstracted File Systems
Websockets

🚀 Getting Started

Prerequisites

GoFr requires Go version 1.21 or above.

Installation

To get started with GoFr, add the following import to your code and use Go’s module support to automatically fetch dependencies:

`1`	`import "gofr.dev/pkg/gofr"`

Alternatively, use the command:

`1`	`go get -u gofr.dev/pkg/gofr`

🏃 Running GoFr

Here’s a simple example to get a GoFr application up and running:

package main

import "gofr.dev/pkg/gofr"

func main() {
	app := gofr.New()

	app.GET("/greet", func(ctx *gofr.Context) (any, error) {
		return "Hello World!", nil
	})

	app.Run() // listens and serves on localhost:8000
}

To run this code:

`1`	`$ go run main.go`

Visit localhost:8000/greet to see the result.

📂 More Examples

Explore a variety of ready-to-run examples in the GoFr examples directory.

👩‍💻 Documentation

GoDoc: Official API documentation.
GoFr Documentation: Comprehensive guides and resources.

👍 Contribute

Help us make GoFr even better:

Star this repo on GitHub! 🌟
Write a review or tutorial on Medium, Dev.to, or your blog.
Review the CONTRIBUTING.md guide to learn how to contribute to the project.

🔒 Secure Cloning

To securely clone the GoFr repository, you can use HTTPS or SSH:

Cloning with HTTPS

`1`	`git clone https://github.com/gofr-dev/gofr.git`

Cloning with SSH

`1`	`git clone git@github.com:gofr-dev/gofr.git`

🎁 Get a GoFr T-Shirt & Stickers!

If your PR is merged, or if you contribute by writing articles or promoting GoFr, we invite you to fill out this form to claim your GoFr merchandise as a token of our appreciation!

GRPC on Producthunt daily

grpc-go

grpc/grpc-go

gRPC-Go

Prerequisites

Installation

Learn more

FAQ

I/O Timeout Errors

Compiling error, undefined: grpc.SupportPackageIsVersion

How to turn on logging

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

gofr

gofr-dev/gofr

GoFr

GoFr: An Opinionated Microservice Development Framework

Listed in the CNCF Landscape

🎯 Goal

💡 Key Features

🚀 Getting Started

Prerequisites

Installation

🏃 Running GoFr

📂 More Examples

👩‍💻 Documentation

👍 Contribute

🔒 Secure Cloning

Cloning with HTTPS

Cloning with SSH

🎁 Get a GoFr T-Shirt & Stickers!

Partners

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