What is it?

The goamz package enables Go programs to interact with the Amazon Web Services.

It was developed within Canonical as part of an experiment related to using the Go language with the juju project, but is now a set of generally adopted and maintained Go packages that talk to several Amazon Web Services.

The API of AWS is very comprehensive, though, and goamz doesn't even scratch the surface of it. That said, it's fairly well tested, and is the foundation in which further calls can easily be integrated. We'll continue extending the API as necessary.

The following packages are available at the moment:

  • gopkg.in/amz.v1/aws
  • gopkg.in/amz.v1/ec2
  • gopkg.in/amz.v1/s3
  • gopkg.in/amz.v1/exp/mturk
  • gopkg.in/amz.v1/exp/sdb
  • gopkg.in/amz.v1/exp/sns

Packages under exp/ are still in an experimental or unfinished/unpolished state.

IMPORTANT: goamz source code was migrated from Launchpad to Github. Source on Launchpad is retained for historical reasons. Bugs should be reported on GitHub as well.

API documentation

The API documentation is currently available at:


Here is a simple example which connects to AWS and creates an instance (make sure you shut it down afterwards):

package main

import (

func main() {
    auth, err := aws.EnvAuth()
    if err != nil {
    e := ec2.New(auth, aws.USEast)

    options := ec2.RunInstances{
        ImageId:      "ami-ccf405a5", // Ubuntu Maverick, i386, EBS store
        InstanceType: "t1.micro",
    resp, err := e.RunInstances(&options)
    if err != nil {

    for _, instance := range resp.Instances {
        println("Now running", instance.InstanceId)
    println("Make sure you terminate instances to stop the cash flow.")

This example will generate the following output:

Source code

To obtain the source code, use Git to download projects from GitHub:

$ git clone https://github.com/go-amz/amz.git

Reporting bugs

Please report bugs on GitHub.

How to build and install goamz

Just use "go get" with any of the available packages. For example:

$ go get gopkg.in/amz.v1/ec2
$ go get gopkg.in/amz.v1/s3

Running tests

To run tests, first install gocheck with:

$ go install gopkg.in/check.v1

Then run go test as usual:

$ go test gopkg.in/amz.v1/...

If you want to run integration tests (costs money), set up the EC2 environment variables as usual, and run:

$ go test -i

Mailing list

To talk about usage and development of goamz, please join the mailing list:


goamz is licensed under the LGPLv3.

goamz (last edited 2015-01-09 12:05:39 by 176-12-31-220)