Bot Driven Development

Mark Orel

About me

JS Addicted

@markbaraban

Software Engineer

Full-Stack Developer

Step back

Bot?!

< 90s

+- 00s

+- 05s

middle 20s

Dictionary.com

Nowadays

Beginning

- All in all, when will we create our own bot, to help people with booking?

- Think it's a great idea.

Motivation #1

Alcohol game:

1. Open any website.

2. If website has its own chat-bot -> drink.

Motivation #2

Proof of concept.

Language representation

- Are you sure?

- Yes/No.

Try #0

Try #1

Try #2

Flying Spaghetti Monster

Finite-state machine

FSM

is the input alphabet ​

is a finite, non-empty set of states

is an initial state

 is the set of final states (possibly empty)

is the state-transition function

action => handler(state, action) => state

set of states.

const Q = {
    "0": hello,
    "01": doYouLikeMe,
    "010": sad,
    "011": happy,
};

handle.

const doYouLikeMe = (state, params) => {
    if (params) {
        const goTo = makeStateDecision(state.id, params);
        return {
            id: goTo,
            type: "transition"
            ...state
        }
    } else {
        return {
            message: "Do you like me?",
            type: "input",
            ...state
        }
    }
}

make decision.

const makeStateDecision = (id, param) => {
    if (param === 'YES') {
        return '011';
    }
    return '010';
}

process.

let state = { id: 0 }
let params = null
while(true) {
    const handler = Q[q.id]
    state = handler(state, params)
    if (state.type === 'message') {
        say(state.message)
    }
    if (state.type === 'input') {
        params = ask(params, state.message)
    }
}

Done.

Upgrade #1

Global handler.

Upgrade #2

Machine learning

(HMM, Neural Networks)

Upgrade #3

AIasS

(wit, pandorabots)

Why should you try?

1. People are messengers-addicted

2. Expansion outlook

3. Maybe you'll become the creator of real AI

4. It's fun

Happy end.

@markbaraban

Homework

• finite-state machine
• mostly adequate guide to functional programming
• telegram bot api
• facebook messenger platform
• sicp