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cpp-sdk's Introduction

Watson Developer Cloud C++ SDK

THE FOLLOWING SECTION MUST BE REPLACED FOR C++ SDK Codacy Badge Build Status Dependency Status codecov.io npm-version npm-downloads

The C++ SDK uses the Watson Developer Cloud services, a collection of REST APIs, and SDKs that use cognitive computing to solve complex problems.

Table of Contents

Compiling the SDK for various platforms

Windows

  1. Install Visual Studio 2015.
  2. Open the solution found in vs2015/wdc-sdk.sln

OS X

  1. Setup qibuild and CMake. You can use Homebrew to install CMake, and any distribution of Python (2.7 recommended) to install qibuild through pip.
  2. Download the "Mac Toolchain" for Mac (C++ SDK 2.1.4 Mac 64) from https://community.aldebaran.com/en/resources/software and unzip into ~/toolchains/naoqi-sdk-mac64/.
  3. Run the following commands:
  • cd {self root directory}
  • qitoolchain create mac ~/toolchains/naoqi-sdk-mac64/toolchain.xml
  • qibuild init
  • qibuild add-config mac --toolchain mac
  • qibuild configure -c mac
  • qibuild make -c mac

Linux

  1. Setup qibuild and CMake. You can use your Linux package manager to install CMake, and any distribution of Python (2.7 recommended) to install qibuild through pip.
  2. Download the "Linux Toolchain" for Linux (C++ SDK 2.1.4 Linux 64) from https://community.aldebaran.com/en/resources/software and unzip into ~/toolchains/naoqi-sdk-linux64/.
  3. Run the following commands:
  • cd {self root directory}
  • qitoolchain create linux ~/toolchains/naoqi-sdk-linux64/toolchain.xml
  • qibuild init
  • qibuild add-config linux --toolchain linux
  • qibuild configure -c linux
  • qibuild make -c linux

Aldebaran Nao and Pepper robots using OS X

  1. Setup qibuild & cmake, see http://doc.aldebaran.com/2-1/dev/cpp/install_guide.html for instructions on getting those installed.
  2. Download the "Cross Toolchain" for Mac from https://community.aldebaran.com/en/resources/software and unzip into ~/toolchains/ctc-mac64-atom.2.4.2.26/.
  3. Run the following commmands:
  • cd {self root directory}
  • qitoolchain create pepper ~/toolchains/ctc-mac64-atom.2.4.2.26/toolchain.xml
  • qitoolchain add-package -c pepper packages/openssl-i686-aldebaran-linux-gnu-1.0.1s.zip
  • qibuild init
  • qibuild add-config pepper --toolchain pepper --default
  • qibuild configure
  • qibuild make

Usage

The examples below assume that you already have service credentials. If not, you will have to create a service in Bluemix.

If you are running your application in Bluemix, you don't need to specify the credentials; the library will get them for you by looking at the VCAP_SERVICES environment variable.

Data collection opt-out

DO WE NEED THIS SECTION? By default, all requests are logged. This can be disabled of by setting the X-Watson-Learning-Opt-Out header when creating the service instance:

headers["x-watson-learning-opt-out"] = "1"

Getting the Service Credentials

You will need the username and password (api_key for AlchemyAPI) credentials for each service. Service credentials are different from your Bluemix account username and password.

To get your service credentials, follow these steps:

  1. Log in to Bluemix at https://bluemix.net.

  2. Create an instance of the service:

    1. In the Bluemix Catalog, select the service you want to use.
    2. Under Add Service, type a unique name for the service instance in the Service name field. For example, type my-service-name. Leave the default values for the other options.
    3. Click Create.
  3. Copy your credentials:

    1. On the left side of the page, click Service Credentials to view your service credentials.
    2. Copy username and password(api_key for AlchemyAPI).

Questions

If you are having difficulties using the APIs or have a question about the IBM Watson Services, please ask a question on dW Answers or Stack Overflow.

Examples

DO WE HAVE EXAMPLES, OR SHOULD THE FOLLOWING SECTION BE REMOVED? The examples folder has basic and advanced examples.

IBM Watson Services

The Watson Developer Cloud offers a variety of services for building cognitive apps.

AlchemyLanguage

AlchemyLanguage offers 12 API functions as part of its text analysis service, each of which uses sophisticated natural language processing techniques to analyze your content and add high-level semantic information.

Use the Sentiment Analysis endpoint to identify positive/negative sentiment within a sample text document.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "AlchemyV1",
            "m_URL" : "http://gateway-a.watsonplatform.net/calls",
            "m_User" : "{username}"
        }
   ],
   "m_Services" : [
        {
            "Type_" : "Alchemy",
            "m_MaxCacheAge" : 168,
            "m_MaxCacheSize" : 5242880,
            "m_RequestTimeout" : 30,
            "m_ReturnParameters" : [ "enriched.url.title", "enriched.url.url", "enriched.url.text" ],
            "m_ServiceId" : "AlchemyV1",
            "m_bCacheEnabled" : true
        }
   ]
}

2. Create a class named TestAlchemyLanguage.cpp

#include "services/Alchemy/Alchemy.h"
#include "utils/Config.h"

void ProcessText()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    Alchemy alchemy;
    if ( config.IsConfigured( alchemy.GetServiceId() ) )
    {
        alchemy.Start() );
        alchemy.GetPosTags( "can you wave to the crowd?", DELEGATE(TestAlchemyLanguage, OnGetPosTags, const Json::Value &, this) );
    }
}

void OnGetPosTags(const Json::Value & json)
{
    // process POS tags stored in the json...
}

AlchemyVision

The AlchemyVision service has been replace by the Visual Recognition service. Existing users have until May 20, 2017 to migrate to the new service, and no new instances may be created.

AlchemyData News

Alchemy Data News indexes 250k to 300k English language news and blog articles every day with historical search available for the past 60 days. Example: Get the volume data from the last 7 days using 12hs of time slice.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "AlchemyV1",
            "m_URL" : "http://gateway-a.watsonplatform.net/calls",
            "m_User" : "{username}"
        }
   ],
   "m_Services" : [
        {
            "Type_" : "Alchemy",
            "m_MaxCacheAge" : 168,
            "m_MaxCacheSize" : 5242880,
            "m_RequestTimeout" : 30,
            "m_ReturnParameters" : [ "enriched.url.title", "enriched.url.url", "enriched.url.text" ],
            "m_ServiceId" : "AlchemyV1",
            "m_bCacheEnabled" : true
        }
   ]
}

2. Create a class named TestAlchemyNews.cpp

#include "services/Alchemy/Alchemy.h"
#include "utils/Config.h"

void GetNews()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    Alchemy alchemy;
    if ( config.IsConfigured( alchemy.GetServiceId() ) )
    {
        alchemy.Start() );
        alchemy.GetNews(companyName, startTime, endTime, numberOfArticles,
                        DELEGATE(TestAlchemyNews, OnGetNews, const Json::Value &, this));
    }
}

void OnGetNews(const Json::Value & json)
{
    // process news stored in the json...
}

Authorization

The Authorization service can generates auth tokens for situations where providing the service username/password is undesirable.

Tokens are valid for 1 hour and may be sent using the X-Watson-Authorization-Token header or the watson-token query param.

Note that the token is supplied URL-encoded, and will not be accepted if it is double-encoded in a querystring.

Concept Insights

The Concept Insights has been deprecated, AlchemyLanguage's concept function can be used as a replacement for most Concept Insights use cases; therefore, we encourage existing Concept Insights service users to migrate to AlchemyLanguage.

Conversation

Use the Conversation service to determine the intent of a message.

Note: you must first create a workspace via Bluemix. See the documentation for details.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "ConversationV1",
            "m_URL" : "https://gateway.watsonplatform.net/conversation/api",
            "m_User" : "{username}"
        }
   ],
   "m_Services" : [
        {
            "Type_" : "Conversation",
            "m_APIVersion" : "2016-07-11",
            "m_MaxCacheAge" : 168,
            "m_MaxCacheSize" : 5242880,
            "m_RequestTimeout" : 30,
            "m_ServiceId" : "ConversationV1",
            "m_bCacheEnabled" : true
        }
    ]
}

2. Create a class named TestConversation.cpp

#include "services/Conversation/Conversation.h"
#include "utils/Config.h"

void GetMessage()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    Conversation conversation;
    if ( config.IsConfigured( conversation.GetServiceId() ) )
    {
        conversation.Start() );
        conversation.Message(m_WorkspaceId, m_Context, m_TestText, m_IntentOverrideTag, DELEGATE(TestConversation, OnMessage, ConversationResponse *, this));
    }
}

void OnMessage(ConversationResponse * a_pConversationResponse)
{
    if ( a_pConversationResponse != NULL )
    {
        // process ConversationResponse to obtain m_Intents, m_Entities, m_Output, m_Context
    }
}

Document Conversion

See the Document Conversion integration example about how to integrate the Document Conversion service with the Retrieve and Rank service.

Language Translator

Translate text from one language to another or idenfity a language using the Language Translator service.

Natural Language Classifier

Use Natural Language Classifier service to create a classifier instance by providing a set of representative strings and a set of one or more correct classes for each as training. Then use the trained classifier to classify your new question for best matching answers or to retrieve next actions for your application.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "NaturalLanguageClassifierV1",
            "m_URL" : "https://gateway.watsonplatform.net/natural-language-classifier/api",
            "m_User" : "{username}"
        }
   ],
   "m_Services" : [
        {
            "Type_" : "NaturalLanguageClassifier",
            "m_MaxCacheAge" : 168,
             "m_MaxCacheSize" : 5242880,
             "m_RequestTimeout" : 30,
             "m_ServiceId" : "NaturalLanguageClassifierV1",
             "m_bCacheEnabled" : true
        }
   ]
}

2. Create a class named TestNaturalLanguageClassifier.cpp

#include "services/NaturalLanguageClassifier/NaturalLanguageClassifier.h"
#include "utils/Config.h"

void GetClassifiers()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    NaturalLanguageClassifier nlc;
    if ( config.IsConfigured( nlc.GetServiceId() ) )
    {
        nlc.Start() );
		nlc.GetClassifiers(DELEGATE(TestNaturalLanguageClassifier, OnGetClassifiers, Classifiers *, this));
    }
}

void OnGetClassifiers(Classifiers * a_pClassifiers)
{
    if ( a_pClassifiers != NULL )
    {
        // check classifiers returned
    }
}

See this example to learn how to create a classifier.

Personality Insights

Analyze text in english and get a personality profile by using the Personality Insights service.

Important: Don't forget to update the text variable.

Relationship Extraction

Relationship Extraction has been deprecated. If you want to continue using Relationship Extraction models, you can now access them with AlchemyLanguage. See the migration guide for details.

Retrieve and Rank

Use the Retrieve and Rank service to enhance search results with machine learning.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "RetrieveAndRankV1",
            "m_URL" : "https://gateway.watsonplatform.net/retrieve-and-rank/api",
            "m_User" : "{username}"
        }
    ],
    "m_Services" : [
        {
            "Type_" : "RetrieveAndRank",
            "m_MaxCacheAge" : 168,
            "m_MaxCacheSize" : 5242880,
            "m_RequestTimeout" : 30,
            "m_ServiceId" : "RetrieveAndRankV1",
            "m_SolrId" : "",
            "m_WorkspaceId" : "",
            "m_bCacheEnabled" : true
        }
    ]
}

2. Create a class named TestRetrieveAndRank.cpp

#include "services/RetrieveAndRank/RetrieveAndRank.h"
#include "utils/Config.h"

void GetRR()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    RetrieveAndRank rr;
    if ( config.IsConfigured( rr.GetServiceId() ) )
    {
        rr.Start() );
		rr.Select(m_SolrId, m_WorkspaceId, m_TestText, DELEGATE(TestRetrieveAndRank, OnMessage, RetrieveAndRankResponse *, this));
    }
}

void OnMessage(RetrieveAndRankResponse * a_pRetrieveAndRankResponse)
{
    // process response
}

Speech to Text

Use the Speech to Text service to recognize the text from a .wav file.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
             "m_ServiceId" : "SpeechToTextV1",
             "m_URL" : "https://stream.watsonplatform.net/speech-to-text/api",
             "m_User" : "{username}"
        }
    ],
    "m_Services" : [
        {
             "Type_" : "SpeechToText",
             "m_Continous" : true,
             "m_DetectSilence" : false,
             "m_Interium" : true,
             "m_LearningOptOut" : true,
             "m_MaxAlternatives" : 1,
             "m_MaxAudioQueueSize" : 1048576,
             "m_MaxCacheAge" : 168,
             "m_MaxCacheSize" : 5242880,
             "m_Models" : [ "en-US_BroadbandModel" ],
             "m_RequestTimeout" : 30,
             "m_ServiceId" : "SpeechToTextV1",
             "m_SilenceThreshold" : 0.029999999329447746,
             "m_Timestamps" : false,
             "m_WordConfidence" : false,
             "m_bCacheEnabled" : true,
             "m_fResultDelay" : 0.25
        }
    ]
}

2. Create a class named TestSpeechToText.cpp

#include "services/SpeechToText/SpeechToText.h"
#include "utils/Config.h"

void GetModels()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    SpeechToText stt;
    if ( config.IsConfigured( stt.GetServiceId() ) )
    {
        stt.Start() );
	    stt.GetModels( DELEGATE( TestSpeechToText, OnGetModels, SpeechModels *, this ) );
    }
}

void OnGetModels( SpeechModels * a_pModels )
{
    if ( a_pModels != NULL )
    {
        // check classifiers returned
    }
}

Text to Speech

Use the Text to Speech service to synthesize text into a .wav file.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "TextToSpeechV1",
            "m_URL" : "https://stream.watsonplatform.net/text-to-speech/api",
            "m_User" : "{username}"
        }
    ],
    "m_Services" : [
        {
            "Type_" : "TextToSpeech",
            "m_MaxCacheAge" : 168,
            "m_MaxCacheSize" : 5242880,
            "m_RequestTimeout" : 30,
            "m_ServiceId" : "TextToSpeechV1",
            "m_Voice" : "en-US_MichaelVoice",
            "m_bCacheEnabled" : true
        }
    ]
}

2. Create a class named TestTextToSpeech.cpp

#include "services/TextToSpeech/TextToSpeech.h"
#include "utils/Config.h"

void GetSound()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    TextToSpeech tts;
    if ( config.IsConfigured( tts.GetServiceId() ) )
    {
        tts.Start() );
		tts.ToSound( "Hello World", DELEGATE( TestTextToSpeech, OnToSpeech, Sound *, this ));
    }
}

void OnToSpeech( Sound * a_pSound )
{
    // process sound
}

Tone Analyzer

Use the Tone Analyzer service to analyze the emotion, writing and social tones of a text.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
             "m_Password" : "{password}",
             "m_ServiceId" : "ToneAnalyzerV1",
             "m_URL" : "https://gateway.watsonplatform.net/tone-analyzer/api",
             "m_User" : "{username}"
        }
    ],
    "m_Services" : [
        {
            "Type_" : "ToneAnalyzer",
            "m_MaxCacheAge" : 720,
            "m_MaxCacheSize" : 5242880,
            "m_RequestTimeout" : 30,
            "m_ServiceId" : "ToneAnalyzerV1",
            "m_Version" : "2016-05-19",
            "m_bCacheEnabled" : true
        }
    ]
}

2. Create a class named TestToneAnalyzer.cpp

#include "services/ToneAnalyzer/ToneAnalyzer.h"
#include "utils/Config.h"

void AnalyzeTone()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    ToneAnalyzer tone;
    if ( config.IsConfigured( tone.GetServiceId() ) )
    {
        tone.Start() );
        tone.GetTone( "how is your day going?", DELEGATE(TestToneAnalyzer, OnTone, DocumentTones *, this));
    }
}

void OnTone(DocumentTones * a_Callback)
{
    // process tones
}

Tradeoff Analytics

Use the Tradeoff Analytics service to find the best phone that minimizes price and weight and maximizes screen size.

Visual Insights

The Watson Visual Insights Service will be withdrawn. The Watson Visual Insights Service tile will be removed from the Bluemix catalog on July 3, 2016, after which you cannot provision new instances of this service.

Visual Recognition

Use the Visual Recognition service to recognize the following picture.

1. Create a json file named services.json
{
   "m_ServiceConfigs" : [
        {
            "m_Password" : "{password}",
            "m_ServiceId" : "VisualRecognitionV1",
            "m_URL" : "https://gateway-a.watsonplatform.net/visual-recognition/api",
            "m_User" : "{username}"
        }
    ],
    "m_Services" : [
        {
            "Type_" : "VisualRecognition",
             "m_MaxCacheAge" : 168,
             "m_MaxCacheSize" : 5242880,
             "m_RequestTimeout" : 30,
             "m_ServiceId" : "VisualRecognitionV1",
             "m_bCacheEnabled" : true
        }
    ]
}

2. Create a class named TestVisualRecognition.cpp

#include "services/VisualRecognition/VisualRecognition.h"
#include "utils/Config.h"

#include <fstream>

void ProcessImage()
{
    Config config;
    ISerializable::DeserializeFromFile("./services.json", &config);

    VisualRecognition vr;
    if ( config.IsConfigured( vr.GetServiceId() ) )
    {
        vr.Start() );
        // read in all the file data..
        std::ifstream input("./VisualRecognitionTest.jpg", std::ios::in | std::ios::binary);
        std::string imageData;
        imageData.assign(std::istreambuf_iterator<char>(input), std::istreambuf_iterator<char>());
        input.close();

        vr.DetectFaces(imageData,
        			    DELEGATE(TestVisualRecognition, OnDetectFaces, const Json::Value &, this) );
    }
}

void OnDetectFaces(const Json::Value & json)
{
    // process faces detected
}

Composing Services

Integration of Tone Analyzer with Conversation

Sample code for integrating Tone Analyzer and Conversation is provided in the examples directory.

Integration Document Conversation with Retrieve and Rank

See the Document Conversion integration example about how to integrate the Document Conversion service with the Retrieve and Rank service.

Unauthenticated requests

By default, the library tries to use Basic Auth and will ask for api_key or username and password and send an Authorization: Basic XXXXXXX. You can avoid this by using:

use_unauthenticated.

Debug

DO WE NEED THIS SECTION? This library relies on the request npm module writted by request to call the Watson Services. To debug the apps, add 'request' to the NODE_DEBUG environment variable:

$ NODE_DEBUG='request' node app.js

where app.js is your Node.js file.

Tests

DO WE NEED THIS SECTION? Running all the tests:

$ npm test

Running a specific test:

$ mocha -g '<test name>'

Open Source @ IBM

Find more open source projects on the IBM Github Page.

License

This library is licensed under Apache 2.0. Full license text is available in COPYING.

Contributing

See CONTRIBUTING.

cpp-sdk's People

Contributors

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Watchers

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