(Go) Amazon Glacier Get Vault Access Policy

Demonstrates how to retrieve the access-policy subresource set on the vault

Chilkat Go Downloads Go Package for Windows, MacOS, Linux, Alpine Linux, Solaris

    // 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 in the desired region.
    bTls := true
    port := 443
    bAutoReconnect := true
    success := rest.Connect("glacier.us-west-2.amazonaws.com",port,bTls,bAutoReconnect)

    // Provide AWS credentials.
    authAws := chilkat.NewAuthAws()
    authAws.SetAccessKey("AWS_ACCESS_KEY")
    authAws.SetSecretKey("AWS_SECRET_KEY")
    authAws.SetServiceName("glacier")
    authAws.SetRegion("us-west-2")

    success = rest.SetAuthAws(authAws)

    // --------------------------------------------------------------------------
    // Note: The above REST connection and setup of the AWS credentials
    // can be done once.  After connecting, any number of REST calls can be made.
    // The "auto reconnect" property passed to rest.Connect indicates that if
    // the connection is lost, a REST method call will automatically reconnect
    // if needed.
    // --------------------------------------------------------------------------

    // 
    // For more information, see Glacier Get Vault Access Policy Reference Documentation
    // 
    rest.AddHeader("x-amz-glacier-version","2012-06-01")

    // Get the access policy for the "chilkat" vault.
    sbResponseBody := chilkat.NewStringBuilder()
    success = rest.FullRequestNoBodySb("GET","/AWS_ACCOUNT_ID/vaults/chilkat/access-policy",sbResponseBody)
    if success != true {
        fmt.Println(rest.LastErrorText())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        sbResponseBody.DisposeStringBuilder()
        return
    }

    respStatusCode := rest.ResponseStatusCode()
    if respStatusCode >= 400 {
        fmt.Println("Response Status Code = ", respStatusCode)
        fmt.Println("Response Header:")
        fmt.Println(rest.ResponseHeader())
        fmt.Println("Response Body:")
        fmt.Println(*sbResponseBody.GetAsString())
        rest.DisposeRest()
        authAws.DisposeAuthAws()
        sbResponseBody.DisposeStringBuilder()
        return
    }

    // Success is indicated by a 200 response status.
    fmt.Println("response status code = ", respStatusCode)

    json := chilkat.NewJsonObject()
    json.LoadSb(sbResponseBody)
    json.SetEmitCompact(false)

    // Returns JSON such as this:
    // {
    //   "Policy": "{\"Version\":\"2012-10-17\",\"Statement\":[{\"Sid\":\"Define-owner-access-rights\",\"Effect\":\"Allow\",\"Principal\":{\"AWS\":\"arn:aws:iam::9999999999999:root\"},\"Action\":\"glacier:DeleteArchive\",\"Resource\":\"arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat\"}]}"
    // }

    // Unwrap...
    jsonPolicy := chilkat.NewJsonObject()
    jsonPolicy.Load(*json.StringOf("Policy"))
    jsonPolicy.SetEmitCompact(false)

    fmt.Println(*jsonPolicy.Emit())
    fmt.Println("----")

    // The jsonPolicy contains:

    // {
    //   "Version": "2012-10-17",
    //   "Statement": [
    //     {
    //       "Sid": "Define-owner-access-rights",
    //       "Effect": "Allow",
    //       "Principal": {
    //         "AWS": "arn:aws:iam::9999999999999:root"
    //       },
    //       "Action": "glacier:DeleteArchive",
    //       "Resource": "arn:aws:glacier:us-west-2:9999999999999:vaults/chilkat"
    //     }
    //   ]
    // }
    // 

    // Use this online tool to generate parsing code from sample JSON: 
    // Generate Parsing Code from JSON

    // To parse the above contents of jsonPolicy...
    var Version *string = new(string)
    var i int
    var count_i int
    var Sid *string = new(string)
    var Effect *string = new(string)
    var PrincipalAWS *string = new(string)
    var Action *string = new(string)
    var Resource *string = new(string)

    Version = jsonPolicy.StringOf("Version")
    i = 0
    count_i = jsonPolicy.SizeOfArray("Statement")
    for i < count_i {
        jsonPolicy.SetI(i)
        Sid = jsonPolicy.StringOf("Statement[i].Sid")
        Effect = jsonPolicy.StringOf("Statement[i].Effect")
        PrincipalAWS = jsonPolicy.StringOf("Statement[i].Principal.AWS")
        Action = jsonPolicy.StringOf("Statement[i].Action")
        Resource = jsonPolicy.StringOf("Statement[i].Resource")
        i = i + 1
    }


    rest.DisposeRest()
    authAws.DisposeAuthAws()
    sbResponseBody.DisposeStringBuilder()
    json.DisposeJsonObject()
    jsonPolicy.DisposeJsonObject()