@aws-sdk/client-application-discovery-service

Description

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

<fullname>Amazon Web Services Application Discovery Service</fullname>

Amazon Web Services Application Discovery Service (Application Discovery Service) helps you plan application migration projects. It automatically identifies servers, virtual machines (VMs), and network dependencies in your on-premises data centers. For more information, see the <a href="http://aws.amazon.com/application-discovery/faqs/">Amazon Web Services Application Discovery Service FAQ</a>. Application Discovery Service offers three ways of performing discovery and collecting data about your on-premises servers: <ul> <li> Agentless discovery using Amazon Web Services Application Discovery Service Agentless Collector (Agentless Collector), which doesn't require you to install an agent on each host. <ul> <li> Agentless Collector gathers server information regardless of the operating systems, which minimizes the time required for initial on-premises infrastructure assessment. </li> <li> Agentless Collector doesn't collect information about network dependencies, only agent-based discovery collects that information. </li> </ul> </li> </ul> <ul> <li> Agent-based discovery using the Amazon Web Services Application Discovery Agent (Application Discovery Agent) collects a richer set of data than agentless discovery, which you install on one or more hosts in your data center. <ul> <li> The agent captures infrastructure and application information, including an inventory of running processes, system performance information, resource utilization, and network dependencies. </li> <li> The information collected by agents is secured at rest and in transit to the Application Discovery Service database in the Amazon Web Services cloud. For more information, see <a href="https://docs.aws.amazon.com/application-discovery/latest/userguide/discovery-agent.html">Amazon Web Services Application Discovery Agent</a>. </li> </ul> </li> </ul> <ul> <li> Amazon Web Services Partner Network (APN) solutions integrate with Application Discovery Service, enabling you to import details of your on-premises environment directly into Amazon Web Services Migration Hub (Migration Hub) without using Agentless Collector or Application Discovery Agent. <ul> <li> Third-party application discovery tools can query Amazon Web Services Application Discovery Service, and they can write to the Application Discovery Service database using the public API. </li> <li> In this way, you can import data into Migration Hub and view it, so that you can associate applications with servers and track migrations. </li> </ul> </li> </ul> Working With This Guide This API reference provides descriptions, syntax, and usage examples for each of the actions and data types for Application Discovery Service. The topic for each action shows the API request parameters and the response. Alternatively, you can use one of the Amazon Web Services SDKs to access an API that is tailored to the programming language or platform that you're using. For more information, see <a href="http://aws.amazon.com/tools/#SDKs">Amazon Web Services SDKs</a>. <note> <ul> <li> Remember that you must set your Migration Hub home Region before you call any of these APIs. </li> <li> You must make API calls for write actions (create, notify, associate, disassociate, import, or put) while in your home Region, or a <code>HomeRegionNotSetException</code> error is returned. </li> <li> API calls for read actions (list, describe, stop, and delete) are permitted outside of your home Region. </li> <li> Although it is unlikely, the Migration Hub home Region could change. If you call APIs outside the home Region, an <code>InvalidInputException</code> is returned. </li> <li> You must call <code>GetHomeRegion</code> to obtain the latest Migration Hub home Region. </li> </ul> </note> This guide is intended for use with the <a href="https://docs.aws.amazon.com/application-discovery/latest/userguide/">Amazon Web Services Application Discovery Service User Guide</a>. All data is handled according to the <a href="https://aws.amazon.com/privacy/">Amazon Web Services Privacy Policy</a>. You can operate Application Discovery Service offline to inspect collected data before it is shared with the service.

Installing

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

npm install @aws-sdk/client-application-discovery-service
yarn add @aws-sdk/client-application-discovery-service
pnpm add @aws-sdk/client-application-discovery-service

Getting Started

Import

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

// ES5 example
const { ApplicationDiscoveryServiceClient, ListConfigurationsCommand } = require("@aws-sdk/client-application-discovery-service");

// ES6+ example
import { ApplicationDiscoveryServiceClient, ListConfigurationsCommand } from "@aws-sdk/client-application-discovery-service";

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 ApplicationDiscoveryServiceClient({ region: "REGION" });

const params = { /** input parameters */ };
const command = new ListConfigurationsCommand(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.

ApplicationDiscoveryService extends ApplicationDiscoveryServiceClient 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 (ApplicationDiscoveryServiceClient). More details are in the blog post on modular packages in AWS SDK for JavaScript.

import { ApplicationDiscoveryService } from "@aws-sdk/client-application-discovery-service";

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

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

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

// callbacks (not recommended).
client.listConfigurations(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;
   * }
   */
}

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-application-discovery-service 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)

<details> <summary> AssociateConfigurationItemsToApplication </summary>