@aws-sdk/client-route53-recovery-cluster

Description

AWS SDK for JavaScript Route53RecoveryCluster Client for Node.js, Browser and React Native.

Welcome to the Routing Control (Recovery Cluster) API Reference Guide for Amazon Route 53 Application Recovery Controller.

With Route 53 ARC, you can use routing control with extreme reliability to recover applications by rerouting traffic across Availability Zones or Amazon Web Services Regions. Routing controls are simple on/off switches hosted on a highly available cluster in Route 53 ARC. A cluster provides a set of five redundant Regional endpoints against which you can run API calls to get or update the state of routing controls. To implement failover, you set one routing control to ON and another one to OFF, to reroute traffic from one Availability Zone or Amazon Web Services Region to another.

Be aware that you must specify a Regional endpoint for a cluster when you work with API cluster operations to get or update routing control states in Route 53 ARC. In addition, you must specify the US West (Oregon) Region for Route 53 ARC API calls. For example, use the parameter --region us-west-2 with AWS CLI commands. For more information, see Get and update routing control states using the API in the Amazon Route 53 Application Recovery Controller Developer Guide.

This API guide includes information about the API operations for how to get and update routing control states in Route 53 ARC. To work with routing control in Route 53 ARC, you must first create the required components (clusters, control panels, and routing controls) using the recovery cluster configuration API.

For more information about working with routing control in Route 53 ARC, see the following:

• Create clusters, control panels, and routing controls by using API operations. For more information, see the Recovery Control Configuration API Reference Guide for Amazon Route 53 Application Recovery Controller.

• Learn about the components in recovery control, including clusters, routing controls, and control panels, and how to work with Route 53 ARC in the Amazon Web Services console. For more information, see Recovery control components in the Amazon Route 53 Application Recovery Controller Developer Guide.

• Route 53 ARC also provides readiness checks that continually audit resources to help make sure that your applications are scaled and ready to handle failover traffic. For more information about the related API operations, see the Recovery Readiness API Reference Guide for Amazon Route 53 Application Recovery Controller.

• For more information about creating resilient applications and preparing for recovery readiness with Route 53 ARC, see the Amazon Route 53 Application Recovery Controller Developer Guide.

Installing

To install this package, use the CLI of your favorite package manager:

• npm install @aws-sdk/client-route53-recovery-cluster
• yarn add @aws-sdk/client-route53-recovery-cluster
• pnpm add @aws-sdk/client-route53-recovery-cluster

Getting Started

Import

The AWS SDK is modulized by clients and commands. To send a request, you only need to import the Route53RecoveryClusterClient and the commands you need, for example ListRoutingControlsCommand:

// ES5 example
const { Route53RecoveryClusterClient, ListRoutingControlsCommand } = require("@aws-sdk/client-route53-recovery-cluster");

// ES6+ example
import { Route53RecoveryClusterClient, ListRoutingControlsCommand } from "@aws-sdk/client-route53-recovery-cluster";

Usage

To send a request:

• Instantiate a client with configuration (e.g. credentials, region).
  • See docs/CLIENTS for configuration details.
  • See @aws-sdk/config for additional options.
• Instantiate a command with input parameters.
• Call the send operation on the client, providing the command object as input.

const client = new Route53RecoveryClusterClient({ region: "REGION" });

const params = { /** input parameters */ };
const command = new ListRoutingControlsCommand(params);

Async/await

We recommend using the await operator to wait for the promise returned by send operation as follows:

// async/await.
try {
  const data = await client.send(command);
  // process data.
} catch (error) {
  // error handling.
} finally {
  // finally.
}

Promises

You can also use Promise chaining.

client
  .send(command)
  .then((data) => {
    // process data.
  })
  .catch((error) => {
    // error handling.
  })
  .finally(() => {
    // finally.
  });

Aggregated client

The aggregated client class is exported from the same package, but without the "Client" suffix.

Route53RecoveryCluster extends Route53RecoveryClusterClient and additionally supports all operations, waiters, and paginators as methods. This style may be familiar to you from the AWS SDK for JavaScript v2.

If you are bundling the AWS SDK, we recommend using only the bare-bones client (Route53RecoveryClusterClient). More details are in the blog post on modular packages in AWS SDK for JavaScript.

import { Route53RecoveryCluster } from "@aws-sdk/client-route53-recovery-cluster";

const client = new Route53RecoveryCluster({ region: "REGION" });

// async/await.
try {
  const data = await client.listRoutingControls(params);
  // process data.
} catch (error) {
  // error handling.
}

// Promises.
client
  .listRoutingControls(params)
  .then((data) => {
    // process data.
  })
  .catch((error) => {
    // error handling.
  });

// callbacks (not recommended).
client.listRoutingControls(params, (err, data) => {
  // process err and data.
});

Troubleshooting

When the service returns an exception, the error will include the exception information, as well as response metadata (e.g. request id).

try {
  const data = await client.send(command);
  // process data.
} catch (error) {
  const { requestId, cfId, extendedRequestId } = error.$metadata;
  console.log({ requestId, cfId, extendedRequestId });
  /**
   * The keys within exceptions are also parsed.
   * You can access them by specifying exception names:
   * if (error.name === 'SomeServiceException') {
   *     const value = error.specialKeyInException;
   * }
   */
}

See also docs/ERROR_HANDLING.

Getting Help

Please use these community resources for getting help. We use GitHub issues for tracking bugs and feature requests, but have limited bandwidth to address them.

• Visit the Developer Guide or API Reference.
• Check out the blog posts tagged with aws-sdk-js on AWS Developer Blog.
• Ask a question on StackOverflow and tag it with aws-sdk-js.
• Join the AWS JavaScript community on gitter.
• If it turns out that you may have found a bug, please open an issue.

To test your universal JavaScript code in Node.js, browser and react-native environments, visit our code samples repo.

Contributing

This client code is generated automatically. Any modifications will be overwritten the next time the @aws-sdk/client-route53-recovery-cluster package is updated. To contribute to client you can check our generate clients scripts.

License

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

Client Commands (Operations List)