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API for AWS Global Accelerator

ABAP Package /AWS1/API_GAC_IMPL
ABAP SDK "TLA" GAC
ABAP Interface /AWS1/IF_GAC

The "TLA" is a Three Letter Abbreviation that appears in ABAP class names, data dictionary objects and other ABAP objects throughout the AWS SDK for SAP ABAP. The TLA for AWS Global Accelerator is GAC. This TLA helps squeeze ABAP objects into the 30-character length limit of the ABAP data dictionary.

Installation

To install the AWS SDK for SAP ABAP, import the Core transport, along with the transport for the Global Accelerator module and other API modules you are interested in. A few modules are included in the Core transport itself. For more information, see the Developer Guide guide.

About The Service

Global Accelerator

This is the Global Accelerator API Reference. This guide is for developers who need detailed information about Global Accelerator API actions, data types, and errors. For more information about Global Accelerator features, see the Global Accelerator Developer Guide.

Global Accelerator is a service in which you create accelerators to improve the performance of your applications for local and global users. Depending on the type of accelerator you choose, you can gain additional benefits.

  • By using a standard accelerator, you can improve availability of your internet applications that are used by a global audience. With a standard accelerator, Global Accelerator directs traffic to optimal endpoints over the Amazon Web Services global network.

  • For other scenarios, you might choose a custom routing accelerator. With a custom routing accelerator, you can use application logic to directly map one or more users to a specific endpoint among many endpoints.

Global Accelerator is a global service that supports endpoints in multiple Amazon Web Services Regions but you must specify the US West (Oregon) Region to create, update, or otherwise work with accelerators. That is, for example, specify --region us-west-2 on Amazon Web Services CLI commands.

By default, Global Accelerator provides you with static IP addresses that you associate with your accelerator. The static IP addresses are anycast from the Amazon Web Services edge network. For IPv4, Global Accelerator provides two static IPv4 addresses. For dual-stack, Global Accelerator provides a total of four addresses: two static IPv4 addresses and two static IPv6 addresses. With a standard accelerator for IPv4, instead of using the addresses that Global Accelerator provides, you can configure these entry points to be IPv4 addresses from your own IP address ranges that you bring to Global Accelerator (BYOIP).

For a standard accelerator, they distribute incoming application traffic across multiple endpoint resources in multiple Amazon Web Services Regions , which increases the availability of your applications. Endpoints for standard accelerators can be Network Load Balancers, Application Load Balancers, Amazon EC2 instances, or Elastic IP addresses that are located in one Amazon Web Services Region or multiple Amazon Web Services Regions. For custom routing accelerators, you map traffic that arrives to the static IP addresses to specific Amazon EC2 servers in endpoints that are virtual private cloud (VPC) subnets.

The static IP addresses remain assigned to your accelerator for as long as it exists, even if you disable the accelerator and it no longer accepts or routes traffic. However, when you delete an accelerator, you lose the static IP addresses that are assigned to it, so you can no longer route traffic by using them. You can use IAM policies like tag-based permissions with Global Accelerator to limit the users who have permissions to delete an accelerator. For more information, see Tag-based policies.

For standard accelerators, Global Accelerator uses the Amazon Web Services global network to route traffic to the optimal regional endpoint based on health, client location, and policies that you configure. The service reacts instantly to changes in health or configuration to ensure that internet traffic from clients is always directed to healthy endpoints.

For more information about understanding and using Global Accelerator, see the Global Accelerator Developer Guide.

Using the SDK

In your code, create a client using the SDK module for AWS Global Accelerator, which is created with factory method /AWS1/CL_GAC_FACTORY=>create(). In this example we will assume you have configured an SDK profile in transaction /AWS1/IMG called ZFINANCE.

DATA(go_session)   = /aws1/cl_rt_session_aws=>create( 'ZFINANCE' ).
DATA(go_gac)       = /aws1/cl_gac_factory=>create( go_session ).

Your variable go_gac is an instance of /AWS1/IF_GAC, and all of the operations in the AWS Global Accelerator service are accessed by calling methods in /AWS1/IF_GAC.

API Operations

For an overview of ABAP method calls corresponding to API operations in AWS Global Accelerator, see the Operation List.

Factory Method

/AWS1/CL_GAC_FACTORY=>create( )

Creates an object of type /AWS1/IF_GAC.

IMPORTING

Optional arguments:

IV_PROTOCOL TYPE /AWS1/RT_PROTOCOL

IO_SESSION TYPE REF TO /AWS1/CL_RT_SESSION_BASE

IV_REGION TYPE /AWS1/RT_REGION_ID

IV_CUSTOM_ENDPOINT TYPE /AWS1/RT_ENDPOINT

RETURNING

OO_CLIENT TYPE REF TO /AWS1/IF_GAC

/AWS1/IF_GAC represents the ABAP client for the Global Accelerator service, representing each operation as a method call. For more information see the API Page page.

Configuring Programmatically

DATA(lo_config) = DATA(go_gac)->get_config( ).

lo_config is a variable of type /AWS1/CL_GAC_CONFIG. See the documentation for /AWS1/CL_GAC_CONFIG for details on the settings that can be configured.

Paginators

Paginators for AWS Global Accelerator can be created via get_paginator() which returns a paginator object of type /AWS1/IF_GAC_PAGINATOR. The operation method that is being paginated is called using the paginator object, which accepts any necessary parameters to provide to the underlying API operation. This returns an iterator object which can be used to iterate over paginated results using has_next() and get_next() methods.

Details about the paginator methods available for service AWS Global Accelerator can be found in interface /AWS1/IF_GAC_PAGINATOR.