lexruntimeservice

package
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 Go to latest Published: Mar 24, 2017 License: Apache-2.0 Imports: 6 Imported by: 0

Documentation

Overview

Package lexruntimeservice provides a client for Amazon Lex Runtime Service.

Index

Examples

Constants

View Source 
const (
	// DialogStateElicitIntent is a DialogState enum value
	DialogStateElicitIntent = "ElicitIntent"

	// DialogStateConfirmIntent is a DialogState enum value
	DialogStateConfirmIntent = "ConfirmIntent"

	// DialogStateElicitSlot is a DialogState enum value
	DialogStateElicitSlot = "ElicitSlot"

	// DialogStateFulfilled is a DialogState enum value
	DialogStateFulfilled = "Fulfilled"

	// DialogStateReadyForFulfillment is a DialogState enum value
	DialogStateReadyForFulfillment = "ReadyForFulfillment"

	// DialogStateFailed is a DialogState enum value
	DialogStateFailed = "Failed"
)
View Source 
const (

	// ErrCodeBadGatewayException for service response error code
	// "BadGatewayException".
	//
	// Either the Amazon Lex bot is still building, or one of the dependent services
	// (Amazon Polly, AWS Lambda) failed with an internal service error.
	ErrCodeBadGatewayException = "BadGatewayException"

	// ErrCodeBadRequestException for service response error code
	// "BadRequestException".
	//
	// Request validation failed, there is no usable message in the context, or
	// the bot build failed.
	ErrCodeBadRequestException = "BadRequestException"

	// ErrCodeConflictException for service response error code
	// "ConflictException".
	//
	// Two clients are using the same AWS account, Amazon Lex bot, and user ID.
	ErrCodeConflictException = "ConflictException"

	// ErrCodeDependencyFailedException for service response error code
	// "DependencyFailedException".
	//
	// One of the downstream dependencies, such as AWS Lambda or Amazon Polly, threw
	// an exception. For example, if Amazon Lex does not have sufficient permissions
	// to call a Lambda function which results in AWS Lambda throwing an exception.
	ErrCodeDependencyFailedException = "DependencyFailedException"

	// ErrCodeInternalFailureException for service response error code
	// "InternalFailureException".
	//
	// Internal service error. Retry the call.
	ErrCodeInternalFailureException = "InternalFailureException"

	// ErrCodeLimitExceededException for service response error code
	// "LimitExceededException".
	ErrCodeLimitExceededException = "LimitExceededException"

	// ErrCodeLoopDetectedException for service response error code
	// "LoopDetectedException".
	//
	// Lambda fulfilment function returned DelegateDialogAction to Amazon Lex without
	// changing any slot values.
	ErrCodeLoopDetectedException = "LoopDetectedException"

	// ErrCodeNotFoundException for service response error code
	// "NotFoundException".
	//
	// Resource (such as the Amazon Lex bot or an alias) referred is not found.
	ErrCodeNotFoundException = "NotFoundException"
)
View Source 
const (
	ServiceName = "runtime.lex" // Service endpoint prefix API calls made to.
	EndpointsID = ServiceName   // Service ID for Regions and Endpoints metadata.
)

Service information constants

View Source 
const (
	// ContentTypeApplicationVndAmazonawsCardGeneric is a ContentType enum value
	ContentTypeApplicationVndAmazonawsCardGeneric = "application/vnd.amazonaws.card.generic"
)

Variables

This section is empty.

Functions

This section is empty.

Types

type Button 

type Button struct {

	// Text visible to the user on the button.
	//
	// Text is a required field
	Text *string `locationName:"text" min:"1" type:"string" required:"true"`

	// Value sent to Amazon Lex when user clicks the button. For example, consider
	// button text "NYC". When the user clicks the button, the value sent can be
	// "New York City".
	//
	// Value is a required field
	Value *string `locationName:"value" min:"1" type:"string" required:"true"`
	// contains filtered or unexported fields
}

Represents an option to be shown on the client platform (Facebook, Slack, etc.) Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/Button

func (Button) GoString 

func (s Button) GoString() string

GoString returns the string representation

func (*Button) SetText 

func (s *Button) SetText(v string) *Button

SetText sets the Text field's value.

func (*Button) SetValue 

func (s *Button) SetValue(v string) *Button

SetValue sets the Value field's value.

func (Button) String 

func (s Button) String() string

String returns the string representation

type GenericAttachment 

type GenericAttachment struct {
	AttachmentLinkUrl *string `locationName:"attachmentLinkUrl" min:"1" type:"string"`

	// List of options to show to the user.
	Buttons []*Button `locationName:"buttons" type:"list"`

	// URL of an image that is displayed to the user.
	ImageUrl *string `locationName:"imageUrl" min:"1" type:"string"`

	// Subtitle shown below the title.
	SubTitle *string `locationName:"subTitle" min:"1" type:"string"`

	// Title of the option.
	Title *string `locationName:"title" min:"1" type:"string"`
	// contains filtered or unexported fields
}

Represents an option rendered to the user when a prompt is shown. It could be an image, a button, a link, or text. Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/GenericAttachment

func (GenericAttachment) GoString 

func (s GenericAttachment) GoString() string

GoString returns the string representation

func (*GenericAttachment) SetAttachmentLinkUrl 

func (s *GenericAttachment) SetAttachmentLinkUrl(v string) *GenericAttachment

SetAttachmentLinkUrl sets the AttachmentLinkUrl field's value.

func (*GenericAttachment) SetButtons 

func (s *GenericAttachment) SetButtons(v []*Button) *GenericAttachment

SetButtons sets the Buttons field's value.

func (*GenericAttachment) SetImageUrl 

func (s *GenericAttachment) SetImageUrl(v string) *GenericAttachment

SetImageUrl sets the ImageUrl field's value.

func (*GenericAttachment) SetSubTitle 

func (s *GenericAttachment) SetSubTitle(v string) *GenericAttachment

SetSubTitle sets the SubTitle field's value.

func (*GenericAttachment) SetTitle 

func (s *GenericAttachment) SetTitle(v string) *GenericAttachment

SetTitle sets the Title field's value.

func (GenericAttachment) String 

func (s GenericAttachment) String() string

String returns the string representation

type LexRuntimeService 

type LexRuntimeService struct {
	*client.Client
}

Amazon Lex provides both build and runtime endpoints. Each endpoint provides a set of operations (API). Your application uses the runtime API to understand user utterances (user input text or voice). For example, suppose user says "I want pizza", your application sends this input to Amazon Lex using the runtime API. Amazon Lex recognizes that the user request is for the OrderPizza intent (one of the intents defined in the application). Then Amazon Lex engages in user conversation on behalf of the application to elicit required information (slot values, such as pizza size and crust type), and then performs fulfillment activity (that you configured when you created the application). You use the build-time API to create and manage your Amazon Lex applications. For a list of build-time operations, see the build-time API. . The service client's operations are safe to be used concurrently. It is not safe to mutate any of the client's properties though. Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28

func New 

func New(p client.ConfigProvider, cfgs ...*aws.Config) *LexRuntimeService

New creates a new instance of the LexRuntimeService client with a session. If additional configuration is needed for the client instance use the optional aws.Config parameter to add your extra config.

Example: 

// Create a LexRuntimeService client from just a session.
svc := lexruntimeservice.New(mySession)

// Create a LexRuntimeService client with additional configuration
svc := lexruntimeservice.New(mySession, aws.NewConfig().WithRegion("us-west-2"))

func (*LexRuntimeService) PostText 

func (c *LexRuntimeService) PostText(input *PostTextInput) (*PostTextOutput, error)

PostText API operation for Amazon Lex Runtime Service.

Sends user input text to Amazon Lex at runtime. Amazon Lex uses the machine learning model that the service built for the application to interpret user input.

In response, Amazon Lex returns the next message to convey to the user (based on the context of the user interaction) and whether to expect a user response to the message (dialogState). For example, consider the following response messages:

  • "What pizza toppings would you like?" – In this case, the dialogState would be ElicitSlot (that is, a user response is expected).

  • "Your order has been placed." – In this case, Amazon Lex returns one of the following dialogState values depending on how the intent fulfillment is configured (see fulfillmentActivity in CreateIntent):

FulFilled – The intent fulfillment is configured through a Lambda function.

ReadyForFulfilment – The intent's fulfillmentActivity is to simply return 

the intent data back to the client application.

Returns awserr.Error for service API and SDK errors. Use runtime type assertions with awserr.Error's Code and Message methods to get detailed information about the error.

See the AWS API reference guide for Amazon Lex Runtime Service's API operation PostText for usage and error information.

Returned Error Codes:

  • ErrCodeNotFoundException "NotFoundException" Resource (such as the Amazon Lex bot or an alias) referred is not found.

  • ErrCodeBadRequestException "BadRequestException" Request validation failed, there is no usable message in the context, or the bot build failed.

  • ErrCodeLimitExceededException "LimitExceededException"

  • ErrCodeInternalFailureException "InternalFailureException" Internal service error. Retry the call.

  • ErrCodeConflictException "ConflictException" Two clients are using the same AWS account, Amazon Lex bot, and user ID.

  • ErrCodeDependencyFailedException "DependencyFailedException" One of the downstream dependencies, such as AWS Lambda or Amazon Polly, threw an exception. For example, if Amazon Lex does not have sufficient permissions to call a Lambda function which results in AWS Lambda throwing an exception.

  • ErrCodeBadGatewayException "BadGatewayException" Either the Amazon Lex bot is still building, or one of the dependent services (Amazon Polly, AWS Lambda) failed with an internal service error.

  • ErrCodeLoopDetectedException "LoopDetectedException" Lambda fulfilment function returned DelegateDialogAction to Amazon Lex without changing any slot values.

Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/PostText

Example 
// THIS FILE IS AUTOMATICALLY GENERATED. DO NOT EDIT.

package main

import (
	"bytes"
	"fmt"
	"time"

	"github.com/aws/aws-sdk-go/aws"
	"github.com/aws/aws-sdk-go/aws/session"
	"github.com/aws/aws-sdk-go/service/lexruntimeservice"
)

var _ time.Duration
var _ bytes.Buffer

func main() {
	sess := session.Must(session.NewSession())

	svc := lexruntimeservice.New(sess)

	params := &lexruntimeservice.PostTextInput{
		BotAlias:  aws.String("BotAlias"), // Required
		BotName:   aws.String("BotName"),  // Required
		InputText: aws.String("Text"),     // Required
		UserId:    aws.String("UserId"),   // Required
		SessionAttributes: map[string]*string{
			"Key": aws.String("String"), // Required
			// More values...
		},
	}
	resp, err := svc.PostText(params)

	if err != nil {
		// Print the error, cast err to awserr.Error to get the Code and
		// Message from an error.
		fmt.Println(err.Error())
		return
	}

	// Pretty-print the response data.
	fmt.Println(resp)
}

Output:

func (*LexRuntimeService) PostTextRequest 

func (c *LexRuntimeService) PostTextRequest(input *PostTextInput) (req *request.Request, output *PostTextOutput)

PostTextRequest generates a "aws/request.Request" representing the client's request for the PostText operation. The "output" return value can be used to capture response data after the request's "Send" method is called.

See PostText for usage and error information.

Creating a request object using this method should be used when you want to inject custom logic into the request's lifecycle using a custom handler, or if you want to access properties on the request object before or after sending the request. If you just want the service response, call the PostText method directly instead.

Note: You must call the "Send" method on the returned request object in order to execute the request. 

// Example sending a request using the PostTextRequest method.
req, resp := client.PostTextRequest(params)

err := req.Send()
if err == nil { // resp is now filled
    fmt.Println(resp)
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/PostText

func (*LexRuntimeService) PostTextWithContext added in v1.8.0 

func (c *LexRuntimeService) PostTextWithContext(ctx aws.Context, input *PostTextInput, opts ...request.Option) (*PostTextOutput, error)

PostTextWithContext is the same as PostText with the addition of the ability to pass a context and additional request options.

See PostText for details on how to use this API operation.

The context must be non-nil and will be used for request cancellation. If the context is nil a panic will occur. In the future the SDK may create sub-contexts for http.Requests. See https://golang.org/pkg/context/ for more information on using Contexts.

type PostTextInput 

type PostTextInput struct {

	// Alias of the Amazon Lex bot.
	//
	// BotAlias is a required field
	BotAlias *string `location:"uri" locationName:"botAlias" type:"string" required:"true"`

	// Name of the Amazon Lex bot.
	//
	// BotName is a required field
	BotName *string `location:"uri" locationName:"botName" type:"string" required:"true"`

	// Text user entered (Amazon Lex interprets this text).
	//
	// InputText is a required field
	InputText *string `locationName:"inputText" min:"1" type:"string" required:"true"`

	// A session represents the dialog between a user and Amazon Lex. At runtime,
	// a client application can pass contextual information (session attributes)
	// in the request. For example, "FirstName" : "Joe". Amazon Lex passes these
	// session attributes to the AWS Lambda functions configured for the intent
	// (see dialogCodeHook and fulfillmentActivity.codeHook in CreateIntent).
	//
	// In your Lambda function, you can use the session attributes for customization.
	// Some examples are:
	//
	//    *  In a pizza ordering application, if you can pass user location as a
	//    session attribute (for example, "Location" : "111 Maple street"), your
	//    Lambda function might use this information to determine the closest pizzeria
	//    to place the order.
	//
	//    *  Use session attributes to personalize prompts. For example, you pass
	//    in user name as a session attribute ("FirstName" : "Joe"), you might configure
	//    subsequent prompts to refer to this attribute, as $session.FirstName".
	//    At runtime, Amazon Lex substitutes a real value when it generates a prompt,
	//    such as "Hello Joe, what would you like to order?"
	//
	// Amazon Lex does not persist session attributes.
	//
	//  If the intent is configured without a Lambda function to process the intent
	// (that is, the client application to process the intent), Amazon Lex simply
	// returns the session attributes back to the client application.
	//
	//  If the intent is configured with a Lambda function to process the intent,
	// Amazon Lex passes the incoming session attributes to the Lambda function.
	// The Lambda function must return these session attributes if you want Amazon
	// Lex to return them back to the client.
	SessionAttributes map[string]*string `locationName:"sessionAttributes" type:"map"`

	// User ID of your client application. Typically, each of your application users
	// should have a unique ID. Note the following considerations:
	//
	//    *  If you want a user to start a conversation on one mobile device and
	//    continue the conversation on another device, you might choose a user-specific
	//    identifier, such as a login or Amazon Cognito user ID (assuming your application
	//    is using Amazon Cognito).
	//
	//    *  If you want the same user to be able to have two independent conversations
	//    on two different devices, you might choose a device-specific identifier,
	//    such as device ID, or some globally unique identifier.
	//
	// UserId is a required field
	UserId *string `location:"uri" locationName:"userId" min:"2" type:"string" required:"true"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/PostTextRequest

func (PostTextInput) GoString 

func (s PostTextInput) GoString() string

GoString returns the string representation

func (*PostTextInput) SetBotAlias 

func (s *PostTextInput) SetBotAlias(v string) *PostTextInput

SetBotAlias sets the BotAlias field's value.

func (*PostTextInput) SetBotName 

func (s *PostTextInput) SetBotName(v string) *PostTextInput

SetBotName sets the BotName field's value.

func (*PostTextInput) SetInputText 

func (s *PostTextInput) SetInputText(v string) *PostTextInput

SetInputText sets the InputText field's value.

func (*PostTextInput) SetSessionAttributes 

func (s *PostTextInput) SetSessionAttributes(v map[string]*string) *PostTextInput

SetSessionAttributes sets the SessionAttributes field's value.

func (*PostTextInput) SetUserId 

func (s *PostTextInput) SetUserId(v string) *PostTextInput

SetUserId sets the UserId field's value.

func (PostTextInput) String 

func (s PostTextInput) String() string

String returns the string representation

func (*PostTextInput) Validate 

func (s *PostTextInput) Validate() error

Validate inspects the fields of the type to determine if they are valid.

type PostTextOutput 

type PostTextOutput struct {

	// Represents the message type to be conveyed to the user. For example:
	//
	//    * ElicitIntent – Amazon Lex wants to elicit user intent. For example,
	//    Amazon Lex did not understand the first utterances such as "I want to
	//    order pizza", which indicates the OrderPizza intent. If Amazon Lex doesn't
	//    understand the intent, it returns this dialogState. Another example is
	//    when your intent is configured with a follow up prompt. For example, after
	//    OrderPizza intent is fulfilled, the intent might have a follow up prompt
	//    such as " Do you want to order a drink or desert?" In this case, Amazon
	//    Lex returns this dialogState.
	//
	//    * ConfirmIntent – Amazon Lex is expecting a yes/no response from the user
	//    indicating whether to go ahead and fulfill the intent (for example, OK
	//    to go ahead and order the pizza). In addition to a yes/no reply, the user
	//    might provide a response with additional slot information (either new
	//    slot information or changes to the existing slot values). For example,
	//    "Yes, but change to thick crust." Amazon Lex understands the additional
	//    information and updates the intent slots accordingly.
	//
	//  Consider another example. Before fulfilling an order, your application might
	//    prompt for confirmation such as "Do you want to place this pizza order?"
	//    A user might reply with "No, I want to order a drink." Amazon Lex recognizes
	//    the new OrderDrink intent.
	//
	//    * ElicitSlot – Amazon Lex is expecting a value of a slot for the current
	//    intent. For example, suppose Amazon Lex asks, "What size pizza would you
	//    like?" A user might reply with "Medium pepperoni pizza." Amazon Lex recognizes
	//    the size and the topping as the two separate slot values.
	//
	//    * Fulfilled – Conveys that the Lambda function has successfully fulfilled
	//    the intent. If Lambda function returns a statement/message to convey the
	//    fulfillment result, Amazon Lex passes this string to the client. If not,
	//    Amazon Lex looks for conclusionStatement that you configured for the intent.
	//
	//
	//  If both the Lambda function statement and the conclusionStatement are missing,
	//    Amazon Lex throws a bad request exception.
	//
	//    * ReadyForFulfillment – conveys that the client has to do the fulfillment
	//    work for the intent. This is the case when the current intent is configured
	//    with ReturnIntent as the fulfillmentActivity , where Amazon Lex returns
	//    this state to client.
	//
	//    * Failed – Conversation with the user failed. Some of the reasons for
	//    this dialogState are: after the configured number of attempts the user
	//    didn't provide an appropriate response, or the Lambda function failed
	//    to fulfill an intent.
	DialogState *string `locationName:"dialogState" type:"string" enum:"DialogState"`

	// Intent Amazon Lex inferred from the user input text. This is one of the intents
	// configured for the bot.
	IntentName *string `locationName:"intentName" type:"string"`

	// Prompt (or statement) to convey to the user. This is based on the application
	// configuration and context. For example, if Amazon Lex did not understand
	// the user intent, it sends the clarificationPrompt configured for the application.
	// In another example, if the intent requires confirmation before taking the
	// fulfillment action, it sends the confirmationPrompt. Suppose the Lambda function
	// successfully fulfilled the intent, and sent a message to convey to the user.
	// In that situation, Amazon Lex sends that message in the response.
	Message *string `locationName:"message" min:"1" type:"string"`

	// Represents the options that the user has to respond to the current prompt.
	// Amazon Lex sends this in the response only if the dialogState value indicates
	// that a user response is expected.
	ResponseCard *ResponseCard `locationName:"responseCard" type:"structure"`

	// Map of key value pairs representing the session specific context information.
	SessionAttributes map[string]*string `locationName:"sessionAttributes" type:"map"`

	// If dialogState value is ElicitSlot, returns the name of the slot for which
	// Amazon Lex is eliciting a value.
	SlotToElicit *string `locationName:"slotToElicit" type:"string"`

	// Intent slots (name/value pairs) Amazon Lex detected so far from the user
	// input in the conversation.
	Slots map[string]*string `locationName:"slots" type:"map"`
	// contains filtered or unexported fields
}

Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/PostTextResponse

func (PostTextOutput) GoString 

func (s PostTextOutput) GoString() string

GoString returns the string representation

func (*PostTextOutput) SetDialogState 

func (s *PostTextOutput) SetDialogState(v string) *PostTextOutput

SetDialogState sets the DialogState field's value.

func (*PostTextOutput) SetIntentName 

func (s *PostTextOutput) SetIntentName(v string) *PostTextOutput

SetIntentName sets the IntentName field's value.

func (*PostTextOutput) SetMessage 

func (s *PostTextOutput) SetMessage(v string) *PostTextOutput

SetMessage sets the Message field's value.

func (*PostTextOutput) SetResponseCard 

func (s *PostTextOutput) SetResponseCard(v *ResponseCard) *PostTextOutput

SetResponseCard sets the ResponseCard field's value.

func (*PostTextOutput) SetSessionAttributes 

func (s *PostTextOutput) SetSessionAttributes(v map[string]*string) *PostTextOutput

SetSessionAttributes sets the SessionAttributes field's value.

func (*PostTextOutput) SetSlotToElicit 

func (s *PostTextOutput) SetSlotToElicit(v string) *PostTextOutput

SetSlotToElicit sets the SlotToElicit field's value.

func (*PostTextOutput) SetSlots 

func (s *PostTextOutput) SetSlots(v map[string]*string) *PostTextOutput

SetSlots sets the Slots field's value.

func (PostTextOutput) String 

func (s PostTextOutput) String() string

String returns the string representation

type ResponseCard 

type ResponseCard struct {

	// Content type of the response.
	ContentType *string `locationName:"contentType" type:"string" enum:"ContentType"`

	// An array of attachment objects representing options.
	GenericAttachments []*GenericAttachment `locationName:"genericAttachments" type:"list"`

	// Version of response card format.
	Version *string `locationName:"version" type:"string"`
	// contains filtered or unexported fields
}

If you configure a response card when creating your bots, Amazon Lex substitutes the session attributes and slot values available, and then returns it. The response card can also come from a Lambda function ( dialogCodeHook and fulfillmentActivity on an intent). Please also see https://docs.aws.amazon.com/goto/WebAPI/runtime.lex-2016-11-28/ResponseCard

func (ResponseCard) GoString 

func (s ResponseCard) GoString() string

GoString returns the string representation

func (*ResponseCard) SetContentType 

func (s *ResponseCard) SetContentType(v string) *ResponseCard

SetContentType sets the ContentType field's value.

func (*ResponseCard) SetGenericAttachments 

func (s *ResponseCard) SetGenericAttachments(v []*GenericAttachment) *ResponseCard

SetGenericAttachments sets the GenericAttachments field's value.

func (*ResponseCard) SetVersion 

func (s *ResponseCard) SetVersion(v string) *ResponseCard

SetVersion sets the Version field's value.

func (ResponseCard) String 

func (s ResponseCard) String() string

String returns the string representation

Source Files

View all Source files

Directories

Path Synopsis
Package lexruntimeserviceiface provides an interface to enable mocking the Amazon Lex Runtime Service service client for testing your code.
 Package lexruntimeserviceiface provides an interface to enable mocking the Amazon Lex Runtime Service service client for testing your code.

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