(Go) AWS Security Token Service (STS) AssumeRole

See more AWS Security Token Service Examples

Returns a set of temporary security credentials that you can use to access AWS resources. These temporary credentials consist of an access key ID, a secret access key, and a security token. Typically, you use AssumeRole within your account or for cross-account access.

For more information, see https://docs.aws.amazon.com/STS/latest/APIReference/API_AssumeRole.html

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    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    rest := chilkat.NewRest()

    // Connect to the Amazon AWS REST server.
    // such as https://sts.us-west-2.amazonaws.com/
    bTls := true
    port := 443
    bAutoReconnect := true
    success := rest.Connect("sts.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)

    // Provide AWS credentials for the REST call.
    authAws := chilkat.NewAuthAws()
    authAws.SetAccessKey("AWS_ACCESS_KEY")
    authAws.SetSecretKey("AWS_SECRET_KEY")
    // the region should match our URL above..
    // See https://docs.aws.amazon.com/IAM/latest/UserGuide/id_credentials_temp_enable-regions.html
    authAws.SetRegion("us-west-2")
    authAws.SetServiceName("sts")

    rest.SetAuthAws(authAws)

    // Sample Request
    // https://sts.amazonaws.com/
    // ?Version=2011-06-15
    // &Action=AssumeRole
    // &RoleSessionName=testAR
    // &RoleArn=arn:aws:iam::123456789012:role/demo
    // &PolicyArns.member.1.arn=arn:aws:iam::123456789012:policy/demopolicy1
    // &PolicyArns.member.2.arn=arn:aws:iam::123456789012:policy/demopolicy2
    // &Policy={"Version":"2012-10-17","Statement":[{"Sid":"Stmt1",
    // "Effect":"Allow","Action":"s3:*","Resource":"*"}]}
    // &DurationSeconds=3600
    // &Tags.member.1.Key=Project
    // &Tags.member.1.Value=Pegasus
    // &Tags.member.2.Key=Team
    // &Tags.member.2.Value=Engineering
    // &Tags.member.3.Key=Cost-Center
    // &Tags.member.3.Value=12345
    // &TransitiveTagKeys.member.1=Project
    // &TransitiveTagKeys.member.2=Cost-Center
    // &ExternalId=123ABC
    // &SourceIdentity=Alice
    // &AUTHPARAMS

    rest.AddQueryParam("Version","2011-06-15")
    rest.AddQueryParam("Action","AssumeRole")
    rest.AddQueryParam("DurationSeconds","3600")

    rest.AddQueryParam("RoleSessionName","testAR")
    rest.AddQueryParam("RoleArn","arn:aws:iam::123456789012:role/demo")
    rest.AddQueryParam("PolicyArns.member.1.arn","arn:aws:iam::123456789012:policy/demopolicy1")
    rest.AddQueryParam("PolicyArns.member.2.arn","arn:aws:iam::123456789012:policy/demopolicy2")
    rest.AddQueryParam("Policy","{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Stmt1\",\"Effect\":\"Allow\",\"Action\":\"s3:*\",\"Resource\":\"*\"}]}")
    rest.AddQueryParam("Tags.member.1.Key","Project")
    rest.AddQueryParam("Tags.member.1.Value","Pegasus")
    rest.AddQueryParam("Tags.member.2.Key","Team")
    rest.AddQueryParam("Tags.member.2.Value","Engineering")
    rest.AddQueryParam("Tags.member.3.Key","Cost-Center")
    rest.AddQueryParam("Tags.member.3.Value","12345")
    rest.AddQueryParam("TransitiveTagKeys.member.1","Project")
    rest.AddQueryParam("TransitiveTagKeys.member.2","Cost-Center")
    rest.AddQueryParam("ExternalId","123ABC")
    rest.AddQueryParam("SourceIdentity","Alice")

    responseXml := rest.FullRequestNoBody("GET","/")
    if rest.LastMethodSuccess() != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        return
    }

    // A successful response will have a status code equal to 200.
    if rest.ResponseStatusCode() != 200 {
        fmt.Println("response status code = ", rest.ResponseStatusCode())
        fmt.Println("response status text = ", rest.ResponseStatusText())
        fmt.Println("response header: ", rest.ResponseHeader())
        fmt.Println("response body: ", *responseXml)
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        return
    }

    // Examine the successful XML response (shown below)
    xml := chilkat.NewXml()
    xml.LoadXml(*responseXml)
    fmt.Println(*xml.GetXml())

    // Sample response:

    // <AssumeRoleResponse xmlns="https://sts.amazonaws.com/doc/2011-06-15/">
    //   <AssumeRoleResult>
    //   <SourceIdentity>Alice</SourceIdentity>
    //     <AssumedRoleUser>
    //       <Arn>arn:aws:sts::123456789012:assumed-role/demo/TestAR</Arn>
    //       <AssumedRoleId>ARO123EXAMPLE123:TestAR</AssumedRoleId>
    //     </AssumedRoleUser>
    //     <Credentials>
    //       <AccessKeyId>ASIAIOSFODNN7EXAMPLE</AccessKeyId>
    //       <SecretAccessKey>wJalrXUtnFEMI/K7MDENG/bPxRfiCYzEXAMPLEKEY</SecretAccessKey>
    //       <SessionToken>
    //        AQoDYXdzEPT//////////wEXAMPLEtc764bNrC9SAPBSM22wDOk4x4HIZ8j4FZTwdQW
    //        LWsKWHGBuFqwAeMicRXmxfpSPfIeoIYRqTflfKD8YUuwthAx7mSEI/qkPpKPi/kMcGd
    //        QrmGdeehM4IC1NtBmUpp2wUE8phUZampKsburEDy0KPkyQDYwT7WZ0wq5VSXDvp75YU
    //        9HFvlRd8Tx6q6fE8YQcHNVXAkiY9q6d+xo0rKwT38xVqr7ZD0u0iPPkUL64lIZbqBAz
    //        +scqKmlzm8FDrypNC9Yjc8fPOLn9FX9KSYvKTr4rvx3iSIlTJabIQwj2ICCR/oLxBA==
    //       </SessionToken>
    //       <Expiration>2019-11-09T13:34:41Z</Expiration>
    //     </Credentials>
    //     <PackedPolicySize>6</PackedPolicySize>
    //   </AssumeRoleResult>
    //   <ResponseMetadata>
    //     <RequestId>c6104cbe-af31-11e0-8154-cbc7ccf896c7</RequestId>
    //   </ResponseMetadata>
    // </AssumeRoleResponse>

    // Sample parse code:

    AssumeRoleResponse_xmlns := xml.GetAttrValue("xmlns")
    SourceIdentity := xml.GetChildContent("AssumeRoleResult|SourceIdentity")
    Arn := xml.GetChildContent("AssumeRoleResult|AssumedRoleUser|Arn")
    AssumedRoleId := xml.GetChildContent("AssumeRoleResult|AssumedRoleUser|AssumedRoleId")
    AccessKeyId := xml.GetChildContent("AssumeRoleResult|Credentials|AccessKeyId")
    SecretAccessKey := xml.GetChildContent("AssumeRoleResult|Credentials|SecretAccessKey")
    SessionToken := xml.GetChildContent("AssumeRoleResult|Credentials|SessionToken")
    Expiration := xml.GetChildContent("AssumeRoleResult|Credentials|Expiration")
    PackedPolicySize := xml.GetChildIntValue("AssumeRoleResult|PackedPolicySize")
    RequestId := xml.GetChildContent("ResponseMetadata|RequestId")

    // Save the session token XML to a file for use by another Chilkat example..
    success = xml.SaveXml("qa_data/tokens/aws_session_token.xml")

    rest.DisposeRest()
    authAws.DisposeAuthAws()
    xml.DisposeXml()