Introduction
The Amazon IVS Chat control-plane API enables you to create and manage Amazon IVS Chat resources. You also need to integrate with the Amazon IVS Chat Messaging API, to enable users to interact with chat rooms in real time.
The API is an AWS regional service. For a list of supported regions and Amazon IVS Chat HTTPS service endpoints, see the Amazon IVS Chat information on the Amazon IVS page in the AWS General Reference.
Notes on terminology:
You create service applications using the Amazon IVS Chat API. We refer to these as applications.
You create front-end client applications (browser and Android/iOS apps) using the Amazon IVS Chat Messaging API. We refer to these as clients.
Resources
The following resources are part of Amazon IVS Chat:
LoggingConfiguration — A configuration that allows customers to store and record sent messages in a chat room. See the Logging Configuration endpoints for more information.
Room — The central Amazon IVS Chat resource through which clients connect to and exchange chat messages. See the Room endpoints for more information.
Tagging
A tag is a metadata label that you assign to an AWS 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 AWS Resources for more information, including restrictions that apply to
tags and "Tag naming limits and requirements"; Amazon IVS Chat has no service-specific
constraints beyond what is documented there.
Tags can help you identify and organize your AWS 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 Chat API has these tag-related endpoints: TagResource, UntagResource, and ListTagsForResource. The following resource supports tagging: Room.
At most 50 tags can be applied to a resource.
API Access Security
Your Amazon IVS Chat applications (service applications and clients) must be authenticated and authorized to access Amazon IVS Chat resources. Note the differences between these concepts:
Authentication is about verifying identity. Requests to the Amazon IVS Chat API must be signed to verify your identity.
Authorization is about granting permissions. Your IAM roles need to have permissions for Amazon IVS Chat API requests.
Users (viewers) connect to a room using secure access tokens that you create using the CreateChatToken endpoint through the AWS SDK. You call CreateChatToken for every user’s chat session, passing identity and authorization information about the user.
Signing API Requests
HTTP API requests must be signed with an AWS SigV4 signature using your AWS security credentials. The AWS Command Line Interface (CLI) and the AWS SDKs take care of signing the underlying API calls for you. However, if your application calls the Amazon IVS Chat HTTP API directly, it’s your responsibility to sign the requests.
You generate a signature using valid AWS credentials for an IAM role that has permission
to perform the requested action. For example, DeleteMessage requests must be made using an IAM
role that has the ivschat:DeleteMessage permission.
For more information:
Authentication and generating signatures — See Authenticating Requests (Amazon Web Services Signature Version 4) in the Amazon Web Services General Reference.
Managing Amazon IVS permissions — See Identity and Access Management on the Security page of the Amazon IVS User Guide.
Amazon Resource Names (ARNs)
ARNs uniquely identify AWS resources. An ARN is required when you need to specify a resource unambiguously across all of AWS, such as in IAM policies and API calls. For more information, see Amazon Resource Names in the AWS General Reference.
Messaging Endpoints
DeleteMessage — Sends an event to a specific room which
directs clients to delete a specific message; that is, unrender it from view and delete it
from the client’s chat history. This event’s EventName is
aws:DELETE_MESSAGE. This replicates the
DeleteMessage WebSocket operation in the Amazon IVS Chat Messaging API.
DisconnectUser — Disconnects all connections using a specified user ID from a room. This replicates the DisconnectUser WebSocket operation in the Amazon IVS Chat Messaging API.
SendEvent — Sends an event to a room. Use this within your application’s business logic to send events to clients of a room; e.g., to notify clients to change the way the chat UI is rendered.
Chat Token Endpoint
CreateChatToken — Creates an encrypted token that is used by a chat participant to establish an individual WebSocket chat connection to a room. When the token is used to connect to chat, the connection is valid for the session duration specified in the request. The token becomes invalid at the token-expiration timestamp included in the response.
Room Endpoints
CreateRoom — Creates a room that allows clients to connect and pass messages.
DeleteRoom — Deletes the specified room.
GetRoom — Gets the specified room.
ListRooms — Gets summary information about all your rooms in the AWS region where the API request is processed.
UpdateRoom — Updates a room’s configuration.
Logging Configuration Endpoints
CreateLoggingConfiguration — Creates a logging configuration that allows clients to store and record sent messages.
DeleteLoggingConfiguration — Deletes the specified logging configuration.
GetLoggingConfiguration — Gets the specified logging configuration.
ListLoggingConfigurations — Gets summary information about all your logging configurations in the AWS region where the API request is processed.
UpdateLoggingConfiguration — Updates a specified logging configuration.
Tags Endpoints
ListTagsForResource — Gets information about AWS tags for the specified ARN.
TagResource — Adds or updates tags for the AWS resource with the specified ARN.
UntagResource — Removes tags from the resource with the specified ARN.
All the above are HTTP operations. There is a separate messaging API for managing Chat resources; see the Amazon IVS Chat Messaging API Reference.
## Installing To install the this package, simply type add or install @aws-sdk/client-ivschat using your favorite package manager: - `npm install @aws-sdk/client-ivschat` - `yarn add @aws-sdk/client-ivschat` - `pnpm add @aws-sdk/client-ivschat` ## Getting Started ### Import The AWS SDK is modulized by clients and commands. To send a request, you only need to import the `IvschatClient` and the commands you need, for example `CreateChatTokenCommand`: ```js // ES5 example const { IvschatClient, CreateChatTokenCommand } = require("@aws-sdk/client-ivschat"); ``` ```ts // ES6+ example import { IvschatClient, CreateChatTokenCommand } from "@aws-sdk/client-ivschat"; ``` ### 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. ```js // a client can be shared by different commands. const client = new IvschatClient({ region: "REGION" }); const params = { /** input parameters */ }; const command = new CreateChatTokenCommand(params); ``` #### Async/await We recommend using [await](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/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](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Using_promises#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](http://callbackhell.com/), 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](https://aws.amazon.com/blogs/developer/modular-packages-in-aws-sdk-for-javascript/) ```ts import * as AWS from "@aws-sdk/client-ivschat"; const client = new AWS.Ivschat({ region: "REGION" }); // async/await. try { const data = await client.createChatToken(params); // process data. } catch (error) { // error handling. } // Promises. client .createChatToken(params) .then((data) => { // process data. }) .catch((error) => { // error handling. }); // callbacks. client.createChatToken(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). ```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](https://docs.aws.amazon.com/sdk-for-javascript/v3/developer-guide/welcome.html) or [API Reference](https://docs.aws.amazon.com/AWSJavaScriptSDK/v3/latest/index.html). - Check out the blog posts tagged with [`aws-sdk-js`](https://aws.amazon.com/blogs/developer/tag/aws-sdk-js/) on AWS Developer Blog. - Ask a question on [StackOverflow](https://stackoverflow.com/questions/tagged/aws-sdk-js) and tag it with `aws-sdk-js`. - Join the AWS JavaScript community on [gitter](https://gitter.im/aws/aws-sdk-js-v3). - If it turns out that you may have found a bug, please [open an issue](https://github.com/aws/aws-sdk-js-v3/issues/new/choose). To test your universal JavaScript code in Node.js, browser and react-native environments, visit our [code samples repo](https://github.com/aws-samples/aws-sdk-js-tests). ## Contributing This client code is generated automatically. Any modifications will be overwritten the next time the `@aws-sdk/client-ivschat` package is updated. To contribute to client you can check our [generate clients scripts](https://github.com/aws/aws-sdk-js-v3/tree/main/scripts/generate-clients). ## License This SDK is distributed under the [Apache License, Version 2.0](http://www.apache.org/licenses/LICENSE-2.0), see LICENSE for more information. ## Client Commands (Operations List)