@aws-sdk/client-neptune

Description

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

Amazon Neptune

Amazon Neptune is a fast, reliable, fully-managed graph database service that makes it
easy to build and run applications that work with highly connected datasets. The core of
Amazon Neptune is a purpose-built, high-performance graph database engine optimized for
storing billions of relationships and querying the graph with milliseconds latency. Amazon
Neptune supports popular graph models Property Graph and W3C's RDF, and their respective query
languages Apache TinkerPop Gremlin and SPARQL, allowing you to easily build queries that
efficiently navigate highly connected datasets. Neptune powers graph use cases such as
recommendation engines, fraud detection, knowledge graphs, drug discovery, and network
security.

This interface reference for Amazon Neptune contains documentation for a programming or
command line interface you can use to manage Amazon Neptune. Note that Amazon Neptune is
asynchronous, which means that some interfaces might require techniques such as polling or
callback functions to determine when a command has been applied. In this reference, the
parameter descriptions indicate whether a command is applied immediately, on the next instance
reboot, or during the maintenance window. The reference structure is as follows, and we list
following some related topics from the user guide.

Installing

To install this package, simply type add or install @aws-sdk/client-neptune
using your favorite package manager:
- npm install @aws-sdk/client-neptune
- yarn add @aws-sdk/client-neptune
- pnpm add @aws-sdk/client-neptune

Getting Started

$3

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

``js
// ES5 example
const { NeptuneClient, ListTagsForResourceCommand } = require("@aws-sdk/client-neptune");
`

`ts
// ES6+ example
import { NeptuneClient, ListTagsForResourceCommand } from "@aws-sdk/client-neptune";
`

$3

To send a request, you:

- Initiate client with configuration (e.g. credentials, region).
- 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.

`js
// a client can be shared by different commands.
const client = new NeptuneClient({ region: "REGION" });

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

#### Async/await

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

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

Async-await is clean, concise, intuitive, easy to debug and has better error handling
as compared to using Promise chains or callbacks.

#### Promises

You can also use Promise chaining
to execute send operation.

`js
client.send(command).then(
(data) => {
// process data.
},
(error) => {
// error handling.
}
);
`

Promises can also be called using .catch() and .finally() as follows:

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

#### Callbacks

We do not recommend using callbacks because of callback hell,
but they are supported by the send operation.

`js
// callbacks.
client.send(command, (err, data) => {
// process err and data.
});
`

#### v2 compatible style

The client can also send requests using v2 compatible style.
However, it results in a bigger bundle size and may be dropped in next major version. More details in the blog post
on modular packages in AWS SDK for JavaScript

`ts
import * as AWS from "@aws-sdk/client-neptune";
const client = new AWS.Neptune({ region: "REGION" });

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

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

// callbacks.
client.listTagsForResource(params, (err, data) => {
// process err and data.
});
`

$3

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

`js
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 the GitHub issues for tracking bugs and feature requests, but have limited bandwidth to address them.

- Visit 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-neptune` 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)

AddRoleToDBCluster

Command API Reference / Input / Output

AddSourceIdentifierToSubscription

Command API Reference / Input / Output

AddTagsToResource

Command API Reference / Input / Output

ApplyPendingMaintenanceAction

Command API Reference / Input / Output

CopyDBClusterParameterGroup

Command API Reference / Input / Output

CopyDBClusterSnapshot

Command API Reference / Input / Output

CopyDBParameterGroup

Command API Reference / Input / Output

CreateDBCluster

Command API Reference / Input / Output

CreateDBClusterEndpoint

Command API Reference / Input / Output

CreateDBClusterParameterGroup

Command API Reference / Input / Output

CreateDBClusterSnapshot

Command API Reference / Input / Output

CreateDBInstance

Command API Reference / Input / Output

CreateDBParameterGroup

Command API Reference / Input / Output

CreateDBSubnetGroup

Command API Reference / Input / Output

CreateEventSubscription

Command API Reference / Input / Output

CreateGlobalCluster

Command API Reference / Input / Output

DeleteDBCluster

Command API Reference / Input / Output

DeleteDBClusterEndpoint

Command API Reference / Input / Output

DeleteDBClusterParameterGroup

Command API Reference / Input / Output

DeleteDBClusterSnapshot

Command API Reference / Input / Output

DeleteDBInstance

Command API Reference / Input / Output

DeleteDBParameterGroup

Command API Reference / Input / Output

DeleteDBSubnetGroup

Command API Reference / Input / Output

DeleteEventSubscription

Command API Reference / Input / Output

DeleteGlobalCluster

Command API Reference / Input / Output

DescribeDBClusterEndpoints

Command API Reference / Input / Output

DescribeDBClusterParameterGroups

Command API Reference / Input / Output

DescribeDBClusterParameters

Command API Reference / Input / Output

DescribeDBClusters

Command API Reference / Input / Output

DescribeDBClusterSnapshotAttributes

Command API Reference / Input / Output

DescribeDBClusterSnapshots

Command API Reference / Input / Output

DescribeDBEngineVersions

Command API Reference / Input / Output

DescribeDBInstances

Command API Reference / Input / Output

DescribeDBParameterGroups

Command API Reference / Input / Output

DescribeDBParameters

Command API Reference / Input / Output

DescribeDBSubnetGroups

Command API Reference / Input / Output

DescribeEngineDefaultClusterParameters

Command API Reference / Input / Output

DescribeEngineDefaultParameters

Command API Reference / Input / Output

DescribeEventCategories

Command API Reference / Input / Output

DescribeEvents

Command API Reference / Input / Output

DescribeEventSubscriptions

Command API Reference / Input / Output

DescribeGlobalClusters

Command API Reference / Input / Output

DescribeOrderableDBInstanceOptions

Command API Reference / Input / Output

DescribePendingMaintenanceActions

Command API Reference / Input / Output

DescribeValidDBInstanceModifications

Command API Reference / Input / Output

FailoverDBCluster

Command API Reference / Input / Output

FailoverGlobalCluster

Command API Reference / Input / Output

ListTagsForResource

Command API Reference / Input / Output

ModifyDBCluster

Command API Reference / Input / Output

ModifyDBClusterEndpoint

Command API Reference / Input / Output

ModifyDBClusterParameterGroup

Command API Reference / Input / Output

ModifyDBClusterSnapshotAttribute

Command API Reference / Input / Output

ModifyDBInstance

Command API Reference / Input / Output

ModifyDBParameterGroup

Command API Reference / Input / Output

ModifyDBSubnetGroup

Command API Reference / Input / Output

ModifyEventSubscription

Command API Reference / Input / Output

ModifyGlobalCluster

Command API Reference / Input / Output

PromoteReadReplicaDBCluster

Command API Reference / Input / Output

RebootDBInstance

Command API Reference / Input / Output

RemoveFromGlobalCluster

Command API Reference / Input / Output

RemoveRoleFromDBCluster

Command API Reference / Input / Output

RemoveSourceIdentifierFromSubscription

Command API Reference / Input / Output

RemoveTagsFromResource

Command API Reference / Input / Output

ResetDBClusterParameterGroup

Command API Reference / Input / Output

ResetDBParameterGroup

Command API Reference / Input / Output

RestoreDBClusterFromSnapshot

Command API Reference / Input / Output

RestoreDBClusterToPointInTime

Command API Reference / Input / Output

StartDBCluster

Command API Reference / Input / Output

StopDBCluster

Command API Reference / Input / Output

SwitchoverGlobalCluster

Command API Reference / Input / Output