AWS SDK Version 3 for .NET
API Reference

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Implementation for accessing LexRuntimeV2

This section contains documentation for the Amazon Lex V2 Runtime V2 API operations.

Inheritance Hierarchy

System.Object
  Amazon.Runtime.AmazonServiceClient
    Amazon.LexRuntimeV2.AmazonLexRuntimeV2Client

Namespace: Amazon.LexRuntimeV2
Assembly: AWSSDK.LexRuntimeV2.dll
Version: 3.x.y.z

Syntax

C# 
public class AmazonLexRuntimeV2Client : AmazonServiceClient
         IAmazonLexRuntimeV2, IAmazonService, IDisposable

The AmazonLexRuntimeV2Client type exposes the following members

Constructors

NameDescription
Public Method AmazonLexRuntimeV2Client()

Constructs AmazonLexRuntimeV2Client with the credentials loaded from the application's default configuration, and if unsuccessful from the Instance Profile service on an EC2 instance. Example App.config with credentials set. 

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>
        <add key="AWSProfileName" value="AWS Default"/>
    </appSettings>
</configuration>

Public Method AmazonLexRuntimeV2Client(RegionEndpoint)

Constructs AmazonLexRuntimeV2Client with the credentials loaded from the application's default configuration, and if unsuccessful from the Instance Profile service on an EC2 instance. Example App.config with credentials set. 

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>
        <add key="AWSProfileName" value="AWS Default"/>
    </appSettings>
</configuration>

Public Method AmazonLexRuntimeV2Client(AmazonLexRuntimeV2Config)

Constructs AmazonLexRuntimeV2Client with the credentials loaded from the application's default configuration, and if unsuccessful from the Instance Profile service on an EC2 instance. Example App.config with credentials set. 

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
    <appSettings>
        <add key="AWSProfileName" value="AWS Default"/>
    </appSettings>
</configuration>

Public Method AmazonLexRuntimeV2Client(AWSCredentials)

Constructs AmazonLexRuntimeV2Client with AWS Credentials

Public Method AmazonLexRuntimeV2Client(AWSCredentials, RegionEndpoint)

Constructs AmazonLexRuntimeV2Client with AWS Credentials

Public Method AmazonLexRuntimeV2Client(AWSCredentials, AmazonLexRuntimeV2Config)

Constructs AmazonLexRuntimeV2Client with AWS Credentials and an AmazonLexRuntimeV2Client Configuration object.

Public Method AmazonLexRuntimeV2Client(string, string)

Constructs AmazonLexRuntimeV2Client with AWS Access Key ID and AWS Secret Key

Public Method AmazonLexRuntimeV2Client(string, string, RegionEndpoint)

Constructs AmazonLexRuntimeV2Client with AWS Access Key ID and AWS Secret Key

Public Method AmazonLexRuntimeV2Client(string, string, AmazonLexRuntimeV2Config)

Constructs AmazonLexRuntimeV2Client with AWS Access Key ID, AWS Secret Key and an AmazonLexRuntimeV2Client Configuration object.

Public Method AmazonLexRuntimeV2Client(string, string, string)

Constructs AmazonLexRuntimeV2Client with AWS Access Key ID and AWS Secret Key

Public Method AmazonLexRuntimeV2Client(string, string, string, RegionEndpoint)

Constructs AmazonLexRuntimeV2Client with AWS Access Key ID and AWS Secret Key

Public Method AmazonLexRuntimeV2Client(string, string, string, AmazonLexRuntimeV2Config)

Constructs AmazonLexRuntimeV2Client with AWS Access Key ID, AWS Secret Key and an AmazonLexRuntimeV2Client Configuration object.

Properties

NameTypeDescription
Public Property Config Amazon.Runtime.IClientConfig Inherited from Amazon.Runtime.AmazonServiceClient.

Methods

Note:

Asynchronous operations (methods ending with Async) in the table below are for .NET 4.5 or higher. For .NET 3.5 the SDK follows the standard naming convention of BeginMethodName and EndMethodName to indicate asynchronous operations - these method pairs are not shown in the table below.

NameDescription
Public Method DeleteSession(DeleteSessionRequest)

Removes session information for a specified bot, alias, and user ID.

You can use this operation to restart a conversation with a bot. When you remove a session, the entire history of the session is removed so that you can start again.

You don't need to delete a session. Sessions have a time limit and will expire. Set the session time limit when you create the bot. The default is 5 minutes, but you can specify anything between 1 minute and 24 hours.

If you specify a bot or alias ID that doesn't exist, you receive a BadRequestException.

If the locale doesn't exist in the bot, or if the locale hasn't been enables for the alias, you receive a BadRequestException.

Public Method DeleteSessionAsync(DeleteSessionRequest, CancellationToken)

Removes session information for a specified bot, alias, and user ID.

You can use this operation to restart a conversation with a bot. When you remove a session, the entire history of the session is removed so that you can start again.

You don't need to delete a session. Sessions have a time limit and will expire. Set the session time limit when you create the bot. The default is 5 minutes, but you can specify anything between 1 minute and 24 hours.

If you specify a bot or alias ID that doesn't exist, you receive a BadRequestException.

If the locale doesn't exist in the bot, or if the locale hasn't been enables for the alias, you receive a BadRequestException.

Public Method DetermineServiceOperationEndpoint(AmazonWebServiceRequest)

Returns the endpoint that will be used for a particular request.

Public Method Dispose() Inherited from Amazon.Runtime.AmazonServiceClient.
Public Method GetSession(GetSessionRequest)

Returns session information for a specified bot, alias, and user.

For example, you can use this operation to retrieve session information for a user that has left a long-running session in use.

If the bot, alias, or session identifier doesn't exist, Amazon Lex V2 returns a BadRequestException. If the locale doesn't exist or is not enabled for the alias, you receive a BadRequestException.

Public Method GetSessionAsync(GetSessionRequest, CancellationToken)

Returns session information for a specified bot, alias, and user.

For example, you can use this operation to retrieve session information for a user that has left a long-running session in use.

If the bot, alias, or session identifier doesn't exist, Amazon Lex V2 returns a BadRequestException. If the locale doesn't exist or is not enabled for the alias, you receive a BadRequestException.

Public Method PutSession(PutSessionRequest)

Creates a new session or modifies an existing session with an Amazon Lex V2 bot. Use this operation to enable your application to set the state of the bot.

Public Method PutSessionAsync(PutSessionRequest, CancellationToken)

Creates a new session or modifies an existing session with an Amazon Lex V2 bot. Use this operation to enable your application to set the state of the bot.

Public Method RecognizeText(RecognizeTextRequest)

Sends user input to Amazon Lex V2. Client applications use this API to send requests to Amazon Lex V2 at runtime. Amazon Lex V2 then interprets the user input using the machine learning model that it build for the bot.

In response, Amazon Lex V2 returns the next message to convey to the user and an optional response card to display.

If the optional post-fulfillment response is specified, the messages are returned as follows. For more information, see PostFulfillmentStatusSpecification.

  • Success message - Returned if the Lambda function completes successfully and the intent state is fulfilled or ready fulfillment if the message is present.

  • Failed message - The failed message is returned if the Lambda function throws an exception or if the Lambda function returns a failed intent state without a message.

  • Timeout message - If you don't configure a timeout message and a timeout, and the Lambda function doesn't return within 30 seconds, the timeout message is returned. If you configure a timeout, the timeout message is returned when the period times out.

For more information, see Completion message.

Public Method RecognizeTextAsync(RecognizeTextRequest, CancellationToken)

Sends user input to Amazon Lex V2. Client applications use this API to send requests to Amazon Lex V2 at runtime. Amazon Lex V2 then interprets the user input using the machine learning model that it build for the bot.

In response, Amazon Lex V2 returns the next message to convey to the user and an optional response card to display.

If the optional post-fulfillment response is specified, the messages are returned as follows. For more information, see PostFulfillmentStatusSpecification.

  • Success message - Returned if the Lambda function completes successfully and the intent state is fulfilled or ready fulfillment if the message is present.

  • Failed message - The failed message is returned if the Lambda function throws an exception or if the Lambda function returns a failed intent state without a message.

  • Timeout message - If you don't configure a timeout message and a timeout, and the Lambda function doesn't return within 30 seconds, the timeout message is returned. If you configure a timeout, the timeout message is returned when the period times out.

For more information, see Completion message.

Public Method RecognizeUtterance(RecognizeUtteranceRequest)

Sends user input to Amazon Lex V2. You can send text or speech. Clients use this API to send text and audio requests to Amazon Lex V2 at runtime. Amazon Lex V2 interprets the user input using the machine learning model built for the bot.

The following request fields must be compressed with gzip and then base64 encoded before you send them to Amazon Lex V2.

  • requestAttributes

  • sessionState

The following response fields are compressed using gzip and then base64 encoded by Amazon Lex V2. Before you can use these fields, you must decode and decompress them.

  • inputTranscript

  • interpretations

  • messages

  • requestAttributes

  • sessionState

The example contains a Java application that compresses and encodes a Java object to send to Amazon Lex V2, and a second that decodes and decompresses a response from Amazon Lex V2.

If the optional post-fulfillment response is specified, the messages are returned as follows. For more information, see PostFulfillmentStatusSpecification.

  • Success message - Returned if the Lambda function completes successfully and the intent state is fulfilled or ready fulfillment if the message is present.

  • Failed message - The failed message is returned if the Lambda function throws an exception or if the Lambda function returns a failed intent state without a message.

  • Timeout message - If you don't configure a timeout message and a timeout, and the Lambda function doesn't return within 30 seconds, the timeout message is returned. If you configure a timeout, the timeout message is returned when the period times out.

For more information, see Completion message.

Public Method RecognizeUtteranceAsync(RecognizeUtteranceRequest, CancellationToken)

Sends user input to Amazon Lex V2. You can send text or speech. Clients use this API to send text and audio requests to Amazon Lex V2 at runtime. Amazon Lex V2 interprets the user input using the machine learning model built for the bot.

The following request fields must be compressed with gzip and then base64 encoded before you send them to Amazon Lex V2.

  • requestAttributes

  • sessionState

The following response fields are compressed using gzip and then base64 encoded by Amazon Lex V2. Before you can use these fields, you must decode and decompress them.

  • inputTranscript

  • interpretations

  • messages

  • requestAttributes

  • sessionState

The example contains a Java application that compresses and encodes a Java object to send to Amazon Lex V2, and a second that decodes and decompresses a response from Amazon Lex V2.

If the optional post-fulfillment response is specified, the messages are returned as follows. For more information, see PostFulfillmentStatusSpecification.

  • Success message - Returned if the Lambda function completes successfully and the intent state is fulfilled or ready fulfillment if the message is present.

  • Failed message - The failed message is returned if the Lambda function throws an exception or if the Lambda function returns a failed intent state without a message.

  • Timeout message - If you don't configure a timeout message and a timeout, and the Lambda function doesn't return within 30 seconds, the timeout message is returned. If you configure a timeout, the timeout message is returned when the period times out.

For more information, see Completion message.

Events

NameDescription
Event AfterResponseEvent Inherited from Amazon.Runtime.AmazonServiceClient.
Event BeforeRequestEvent Inherited from Amazon.Runtime.AmazonServiceClient.
Event ExceptionEvent Inherited from Amazon.Runtime.AmazonServiceClient.

Version Information

.NET:
Supported in: 8.0 and newer, Core 3.1

.NET Standard:
Supported in: 2.0

.NET Framework:
Supported in: 4.5 and newer, 3.5