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ivs Client - AWS SDK for JavaScript v3

@aws-sdk/client-ivs

NPM version NPM downloads

Description

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

Introduction

The Amazon Interactive Video Service (IVS) API is REST compatible, using a standard HTTP API and an Amazon Web Services EventBridge event stream for responses. JSON is used for both requests and responses, including errors.

The API is an Amazon Web Services regional service. For a list of supported regions and Amazon IVS HTTPS service endpoints, see the Amazon IVS page in the Amazon Web Services General Reference.

All API request parameters and URLs are case sensitive.

For a summary of notable documentation changes in each release, see Document History.

Allowed Header Values

  • Accept: application/json

  • Accept-Encoding: gzip, deflate

  • Content-Type: application/json

Resources

The following resources contain information about your IVS live stream (see Getting Started with Amazon IVS):

  • Channel — Stores configuration data related to your live stream. You first create a channel and then use the channel’s stream key to start your live stream. See the Channel endpoints for more information.

  • Stream key — An identifier assigned by Amazon IVS when you create a channel, which is then used to authorize streaming. See the StreamKey endpoints for more information. Treat the stream key like a secret, since it allows anyone to stream to the channel.

  • Playback key pair — Video playback may be restricted using playback-authorization tokens, which use public-key encryption. A playback key pair is the public-private pair of keys used to sign and validate the playback-authorization token. See the PlaybackKeyPair endpoints for more information.

  • Recording configuration — Stores configuration related to recording a live stream and where to store the recorded content. Multiple channels can reference the same recording configuration. See the Recording Configuration endpoints for more information.

Tagging

A tag is a metadata label that you assign to an Amazon Web Services resource. A tag comprises a key and a value, both set by you. For example, you might set a tag as topic:nature to label a particular video category. See Tagging Amazon Web Services Resources for more information, including restrictions that apply to tags.

Tags can help you identify and organize your Amazon Web Services resources. For example, you can use the same tag for different resources to indicate that they are related. You can also use tags to manage access (see Access Tags).

The Amazon IVS API has these tag-related endpoints: TagResource, UntagResource, and ListTagsForResource. The following resources support tagging: Channels, Stream Keys, Playback Key Pairs, and Recording Configurations.

At most 50 tags can be applied to a resource.

Authentication versus Authorization

Note the differences between these concepts:

  • Authentication is about verifying identity. You need to be authenticated to sign Amazon IVS API requests.

  • Authorization is about granting permissions. You need to be authorized to view Amazon IVS private channels. (Private channels are channels that are enabled for "playback authorization.")

Authentication

All Amazon IVS API requests must be authenticated with a signature. The Amazon Web Services Command-Line Interface (CLI) and Amazon IVS Player SDKs take care of signing the underlying API calls for you. However, if your application calls the Amazon IVS API directly, it’s your responsibility to sign the requests.

You generate a signature using valid Amazon Web Services credentials that have permission to perform the requested action. For example, you must sign PutMetadata requests with a signature generated from an IAM user account that has the ivs:PutMetadata permission.

For more information:

Channel Endpoints

  • CreateChannel — Creates a new channel and an associated stream key to start streaming.

  • GetChannel — Gets the channel configuration for the specified channel ARN (Amazon Resource Name).

  • BatchGetChannel — Performs GetChannel on multiple ARNs simultaneously.

  • ListChannels — Gets summary information about all channels in your account, in the Amazon Web Services region where the API request is processed. This list can be filtered to match a specified name or recording-configuration ARN. Filters are mutually exclusive and cannot be used together. If you try to use both filters, you will get an error (409 Conflict Exception).

  • UpdateChannel — Updates a channel's configuration. This does not affect an ongoing stream of this channel. You must stop and restart the stream for the changes to take effect.

  • DeleteChannel — Deletes the specified channel.

StreamKey Endpoints

  • CreateStreamKey — Creates a stream key, used to initiate a stream, for the specified channel ARN.

  • GetStreamKey — Gets stream key information for the specified ARN.

  • BatchGetStreamKey — Performs GetStreamKey on multiple ARNs simultaneously.

  • ListStreamKeys — Gets summary information about stream keys for the specified channel.

  • DeleteStreamKey — Deletes the stream key for the specified ARN, so it can no longer be used to stream.

Stream Endpoints

  • GetStream — Gets information about the active (live) stream on a specified channel.

  • GetStreamSession — Gets metadata on a specified stream.

  • ListStreams — Gets summary information about live streams in your account, in the Amazon Web Services region where the API request is processed.

  • ListStreamSessions — Gets a summary of current and previous streams for a specified channel in your account, in the AWS region where the API request is processed.

  • StopStream — Disconnects the incoming RTMPS stream for the specified channel. Can be used in conjunction with DeleteStreamKey to prevent further streaming to a channel.

  • PutMetadata — Inserts metadata into the active stream of the specified channel. At most 5 requests per second per channel are allowed, each with a maximum 1 KB payload. (If 5 TPS is not sufficient for your needs, we recommend batching your data into a single PutMetadata call.) At most 155 requests per second per account are allowed.

PlaybackKeyPair Endpoints

For more information, see Setting Up Private Channels in the Amazon IVS User Guide.

  • ImportPlaybackKeyPair — Imports the public portion of a new key pair and returns its arn and fingerprint. The privateKey can then be used to generate viewer authorization tokens, to grant viewers access to private channels (channels enabled for playback authorization).

  • GetPlaybackKeyPair — Gets a specified playback authorization key pair and returns the arn and fingerprint. The privateKey held by the caller can be used to generate viewer authorization tokens, to grant viewers access to private channels.

  • ListPlaybackKeyPairs — Gets summary information about playback key pairs.

  • DeletePlaybackKeyPair — Deletes a specified authorization key pair. This invalidates future viewer tokens generated using the key pair’s privateKey.

RecordingConfiguration Endpoints

Amazon Web Services Tags Endpoints

  • TagResource — Adds or updates tags for the Amazon Web Services resource with the specified ARN.

  • UntagResource — Removes tags from the resource with the specified ARN.

  • ListTagsForResource — Gets information about Amazon Web Services tags for the specified ARN.

Installing

To install the this package, simply type add or install @aws-sdk/client-ivs using your favorite package manager:

  • npm install @aws-sdk/client-ivs
  • yarn add @aws-sdk/client-ivs
  • pnpm add @aws-sdk/client-ivs

Getting Started

Import

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

// ES5 example
const { IvsClient, BatchGetChannelCommand } = require("@aws-sdk/client-ivs");
// ES6+ example
import { IvsClient, BatchGetChannelCommand } from "@aws-sdk/client-ivs";

Usage

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

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

Async/await

We recommend using 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.
}

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.

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

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

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.

// 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

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

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

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

// callbacks.
client.batchGetChannel(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 the GitHub issues for tracking bugs and feature requests, but have limited bandwidth to address them.

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-ivs 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.