Josh Marinacci

Head of Developer Evangelism

Serverless Chatbots

AI + network = Chatbot

Your requirements

• Domain Knowledge
• Artificial Intelligence
• Realtime Infrastructure

Your requirements, not your focus

• Domain Knowledge
• Artificial Intelligence
• Realtime Infrastructure

Don't build your own infrastructure

Don't build your own AI

Focus on your domain knowledge

Demo Time

EmojiBot

HeartBot Code

export default (request) => {
    var txt = request.message.text;
    txt = txt.replace(/poop/g,"\uD83D\uDCA9");
    txt = txt.replace(/crap/g,"\uD83D\uDCA9");
    txt = txt.replace(/love/g,"\uD83D\uDE0D");
    txt = txt.replace(/heart/g,"\uD83D\uDC9C");
    txt = txt.replace(/sad/g,"\uD83D\uDE1E");
    txt = txt.replace(/happy/g,"\uD83D\uDE04");

    request.message.text = "Your message isn't hearty enough!"
        +" There I fixed it: <br/>"
        + txt;
    return request.ok(); // Return a promise when you're done
}

HeartBot Architecture

Serverless !== No Servers

Cloudinary

ImageBot

ImageBot Architecture

ImageBot NLP

var words = text.split(" ")
    .map((w)=>w.toLowerCase())
    .filter((w)=>{
        if(w === 'the')return false;
        if(w === 'it') return false;
        if(w === 'to') return false;
        if(w === 'at') return false;
        if(w === 'in') return false;
        return true;
    });
console.log("words",words);
if(!words.includes("please")) return false;

var n = words.findIndex((w) => w === 'please');
var verb = words[n+1];
if(verb === 'upload') return upload(words);
if(verb === 'display') return display(rest);
if(verb === 'show') return show(rest);
if(verb === 'resize') return resize(rest);
if(verb === 'reset') return reset(rest);
if(verb === 'make' && nextWord === 'square') return makeSquare(rest);
...
    

    {
        "action":"resize"
    }

ImageBot Cloudinary Service Calls

return db.get('context').then((context) => {
    if(!context) context = {};
    var command = request.message;
    if(command.action === 'resize') context.width = command.size;
    if(command.action === 'crop') {
        context.crop = true;
        context.shape = 'square';
        context.gravity = command.gravity;
    }

    //generate the final url
    let apiUrl = 'http://res.cloudinary.com/' +
        cloudName + '/' + resource + '/' + operation + '/';
    apiUrl += filename  + '.' + context.format;

    //save the url
    request.message.cloudinaryURL = apiUrl;


    db.set('context',context); //save the context
    return request.ok(); // Return the final message
});

ImageBot lesson

Don't built your own NLP

MR ROCKBOT Architecture

IBM Watson Text Alchemy API

Detect Language and Translate

const query_params = {
    outputMode:'json',
    apikey:'494a8df6f920d85b1de4a8172c21dbc264d6446f',
    extract:'keywords,relations,language',
    maxRetrieve: 1,
    text:request.message.text
};
var url = "http://gateway-a.watsonplatform.net/calls/text/TextGetCombinedData?"
        +query.stringify(query_params);

return xhr.fetch(url).then((x)=>{
    var ret = JSON.parse(x.body);
    if(ret.language != 'english') {
        return translateMessage(request.message, ret.language);
    }
    return cookMessage(ret);
});

IBM Watson Text Alchemy API

IBM Watson Conversations

Use Conversations API

var url = creds.url+'/v1/workspaces/'+creds.workspaceID+'/message?version=2016-09-20';

var payload = { input: {  text: request.message.text   } }

return kvstore.get("context").then((ctx) => {
    if(ctx) payload.context = ctx;

    const http_options = { method:'POST', body: JSON.stringify(payload) }

    return xhr.fetch(url, http_options).then((x)=>{
        var body = JSON.parse(x.body);
        return kvstore.set("context",body.context).then(()=>{
            request.message.text = body.output.text[0];
            request.message.watson = body;
            return request.ok();
        });
    }).catch((e)=>{
        console.log("ERROR");
        return request.ok();
    });
});

Bonus!

Realtime isn't just for text

Don't build your own AI

Don't build your own realtime infrastructure.

• Cloudinary
• IBM Watson
• PubNub

@joshmarinacci

josh@pubnub.com