@aws-sdk/client-elasticache-node

Description

Amazon ElastiCache

Amazon ElastiCache is a web service that makes it easier to set up, operate, and scale a distributed cache in the cloud.

With ElastiCache, customers get all of the benefits of a high-performance, in-memory cache with less of the administrative burden involved in launching and managing a distributed cache. The service makes setup, scaling, and cluster failure handling much simpler than in a self-managed cache deployment.

In addition, through integration with Amazon CloudWatch, customers get enhanced visibility into the key performance statistics associated with their cache and can receive alarms if a part of their cache runs hot.

Installing

To install the this package using NPM, simply type the following into a terminal window:

npm install @aws-sdk/client-elasticache-node

Getting Started

Import

The AWS SDK is modulized by clients and commands in CommonJS modules. To send a request, you only need to import the client(ElastiCacheClient) and the commands you need, for example AddTagsToResourceCommand:

//JavaScript
const {
  ElastiCacheClient
} = require("@aws-sdk/client-elasticache-node/ElastiCacheClient");
const {
  AddTagsToResourceCommand
} = require("@aws-sdk/client-elasticache-node/commands/AddTagsToResourceCommand");

//TypeScript
import { ElastiCacheClient } from "@aws-sdk/client-elasticache-node/ElastiCacheClient";
import { AddTagsToResourceCommand } from "@aws-sdk/client-elasticache-node/commands/AddTagsToResourceCommand";

Usage

To send a request, you:

Initiate client with configuration (e.g. credentials, region). For more information you can refer to the API reference.
Initiate command with input parameters.
Call send operation on client with command object as input.
If you are using a custom http handler, you may call destroy() to close open connections.

const elastiCache = new ElastiCacheClient({region: 'region'});
//clients can be shared by different commands
const params = {
  ResourceName: /**a string value*/,
  Tags: [ /**a list of structure*/ ],
};
const addTagsToResourceCommand = new AddTagsToResourceCommand(params);
elastiCache.send(addTagsToResourceCommand).then(data => {
    // do something
}).catch(error => {
    // error handling
})

In addition to using promises, there are 2 other ways to send a request:

// async/await
try {
  const data = await elastiCache.send(addTagsToResourceCommand);
  // do something
} catch (error) {
  // error handling
}

// callback
elastiCache.send(addTagsToResourceCommand, (err, data) => {
  //do something
});

The SDK can also send requests using the simplified callback style from version 2 of the SDK.

import * as AWS from "@aws-sdk/@aws-sdk/client-elasticache-node/ElastiCache";
const elastiCache = new AWS.ElastiCache({ region: "region" });
elastiCache.addTagsToResource(params, (err, data) => {
  //do something
});

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 elastiCache.send(addTagsToResourceCommand);
  // do something
} catch (error) {
  const metadata = error.$metadata;
  console.log(
    `requestId: ${metadata.requestId}
cfId: ${metadata.cfId}
extendedRequestId: ${metadata.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 the GitHub issues for tracking bugs and feature requests and have limited bandwidth to address them.

Ask a question on StackOverflow and tag it with aws-sdk-js
Come join the AWS JavaScript community on gitter
If it turns out that you may have found a bug, please open an issue

Contributing

This client code is generated automatically. Any modifications will be overwritten the next time the `@aws-sdk/@aws-sdk/client-elasticache-node' package is updated. To contribute to SDK you can checkout our code generator package.

License

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