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@firemansamm /app.js
Last active Jun 19, 2018

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LUIS Wiki Sample
var restify = require('restify');
var builder = require('botbuilder');
var request = require('request');
var querystring = require('querystring');
// Setup restify
var server = restify.createServer();
server.listen(3990, function () {
console.log('%s listening at %s', server.name, server.url);
});
var connector = new builder.ChatConnector();
// Define REST endpoint for Bot Framework
server.post('/api/messages', connector.listen());
// Creates our bot.
var bot = new builder.UniversalBot(connector, (session, args) => {
session.send("I'm sorry, I'm afraid I don't understand %s.", session.message.text);
});
/*
* LUIS Recogniser Setup
* Sets up a recogniser that uses LUIS to deduce intents.
*/
var luisEndpoint = "LUIS_ENDPOINT"; // Endpoint on the Publish page, without the trailing &q=.
var luisRecogniser = new builder.LuisRecognizer(luisEndpoint);
bot.recognizer(luisRecogniser); // Assigns the LUIS recogniser to the bot
// Dialogs for each intent that our bot responds to
// Describe intent - uses the Wikipedia Summary API to pull information about the search term.
bot.dialog("WikiSearchDialog", (session, args) => {
var intent = args.intent; // Extract predicted intent information
var subject = builder.EntityRecognizer.findAllEntities(intent.entities, "SearchObject"); // Get all entities matching SearchObject
var subjectValue = (subject.map((entity) => {return entity.entity}).join(" ")).replace("?", ""); // Join them into one string, ignoring ?
if(subjectValue == "") {
//No entities were found.
session.send("Sorry, I couldn't find a search object in your message :(");
}
subjectValue = querystring.escape(subjectValue);
// Query the Wikipedia summary API: https://en.wikipedia.org/api/rest_v1/#!/Page_content/get_page_summary_title
var wikiGetEndpoint = "https://en.wikipedia.org/api/rest_v1/page/summary/" + subjectValue;
request(wikiGetEndpoint, (err, resp, body) => {
var resultObject = JSON.parse(body);
if(resultObject.title == "Not found.") { // No Wikipedia page or redirect exists.
session.send("Oops, I can't find that.");
} else {
session.send("Here's what I found:");
session.send(resultObject.extract); // Get summary
if(resultObject.thumbnail) {
//If the Wikipedia summary came with a thumbnail, send it.
session.send("I also found this picture:");
session.send({
attachments:[
{
contentType: "image/jpg",
contentUrl: resultObject.thumbnail.source
}
]
})
}
}
});
}).triggerAction({
matches: "Describe"
});
// Default dialog for the None intent - cases when we don't want our bot to do a search.
bot.dialog("DefaultDialog", (session, args) => {
session.send("Hello! I'm WikiBot. Try asking me a question like: \"what is football?\"");
}).triggerAction({
matches: "None"
});
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