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awslabs/aws-sdk-go

2260

awslabs / aws-sdk-go

Go

AWS SDK for the Go programming language.


READ ME

AWS SDK for Go

API Reference Join the chat at https://gitter.im/aws/aws-sdk-go Build Status Apache V2 License

aws-sdk-go is the official AWS SDK for the Go programming language.

Checkout our release notes for information about the latest bug fixes, updates, and features added to the SDK.

Release v0.10.0 introduced a breaking change to the SDK.

Updates SDK by adding session.Session replacing the global defaults.DefaultConfig. A session is used to store configuration and request handler settings for service clients. Each service client's New function now takes a session as the first parameter, and an optional aws.Config, which will be used for the specific client instance being created.

See the Getting Started Configuration wiki for more information on how to use sessions within your application.

Caution

The SDK is currently in the process of being developed, and not everything may be working fully yet. Please be patient and report any bugs or problems you experience. The APIs may change radically without much warning, so please vendor your dependencies with Godep or similar.

Please do not confuse this for a stable, feature-complete library.

If you've encountered any issues usign the SDK please open a GitHub issue.

Installing

If you are using Go 1.5 with the GO15VENDOREXPERIMENT=1 vendoring flag you can use the following to get the SDK as the SDK's runtime dependancies are vendored in the vendor folder.

$ go get -u github.com/aws/aws-sdk-go

Otherwise you'll need to tell Go to get the SDK and all of its dependancies.

$ go get -u github.com/aws/aws-sdk-go/...

Configuring Credentials

Before using the SDK, ensure that you've configured credentials. The best way to configure credentials on a development machine is to use the ~/.aws/credentials file, which might look like:

[default]
aws_access_key_id = AKID1234567890
aws_secret_access_key = MY-SECRET-KEY

You can learn more about the credentials file from this blog post.

Alternatively, you can set the following environment variables:

AWS_ACCESS_KEY_ID=AKID1234567890
AWS_SECRET_ACCESS_KEY=MY-SECRET-KEY

Using the Go SDK

To use a service in the SDK, create a service variable by calling the New() function. Once you have a service client, you can call API operations which each return response data and a possible error.

To list a set of instance IDs from EC2, you could run:

package main

import (
    "fmt"

    "github.com/aws/aws-sdk-go/aws"
    "github.com/aws/aws-sdk-go/aws/session"
    "github.com/aws/aws-sdk-go/service/ec2"
)

func main() {
    // Create an EC2 service object in the "us-west-2" region
    // Note that you can also configure your region globally by
    // exporting the AWS_REGION environment variable
    svc := ec2.New(session.New(), &aws.Config{Region: aws.String("us-west-2")})

    // Call the DescribeInstances Operation
    resp, err := svc.DescribeInstances(nil)
    if err != nil {
        panic(err)
    }

    // resp has all of the response data, pull out instance IDs:
    fmt.Println("> Number of reservation sets: ", len(resp.Reservations))
    for idx, res := range resp.Reservations {
        fmt.Println("  > Number of instances: ", len(res.Instances))
        for _, inst := range resp.Reservations[idx].Instances {
            fmt.Println("    - Instance ID: ", *inst.InstanceId)
        }
    }
}

You can find more information and operations in our API documentation.

License

This SDK is distributed under the Apache License, Version 2.0, see LICENSE.txt and NOTICE.txt for more information.