A COMPUTER PROGRAM DESIGNED TO
SIMULATE A CONVERSATION WITH HUMAN
USERS
CHATBOT
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USER PLATFORM APP
OPS CHANNEL
/HELP
OPS CHANNEL
HERE IS THE HELP
YOU REQUESTED:
{ CHANNEL: ‘C1234’,
USER: ‘U8324’,
TEAM: ‘T4390’,
MESSAGE: ‘/HELP’ }
CHAT.POST_MESSAGE(‘HERE IS THE HELP YOU REQUESTED:’)
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USER PLATFORM APP
CLIENT SERVER
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J
os
eph
WEIZENBAUM
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Alan
TURING
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ELIZA
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SIRI
2 0 0 7
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2 0 0 1
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RADIOHEAD
IS
ALWAYS
AHEAD OF THEIR TIME™
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imp
or
tant?
CHATBOTS
Why are
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WHAT
OCCURRED
AT THAT
BASKETBALL GAME?
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FAMILIAR
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FAMILIAR
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FAMILIAR LESS BARRIERS
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MESSAGES SLACK
TEAMS FACEBOOK
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BE WHERE YOUR USERS ARE
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PLATFORM SPECIFIC
FUN STUFF
BUSINESS STUFF
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MO’ MONEY
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FUN
DEV CODE RUN BEEP-BOOP
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built today?
CHATBOTS
How are
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HOW SLACK WORKS
A P P D I R E C T O R Y
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HOW SLACK WORKS
O A U T H W / S L A C K
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HOW SLACK WORKS
S C O P E R E Q U E S T
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HOW SLACK WORKS
N E W B O T U S E R !
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USER PLATFORM APP
OPS CHANNEL
/HELP
HOW SLACK WORKS
{ CHANNEL: ‘C1234’,
USER: ‘U8324’,
TEAM: ‘T4390’,
MESSAGE: ‘/HELP’ }
MIDDLEWARE
> CHAIN RESPONSIBILITIES TOGETHER
> EXTENSION POINTS
> MODIFY CONTEXT
> COMMON RUNTIME ON EACH REQUEST
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MIDDLEWARE
D E F I N I N G M I D D L E W A R E
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JUVET WALKTHROUGH
C U S T O M M I D D L E W A R E
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CONTEXT
> VARIABLES FOR USE IN CONTROLLER
> ONLY UPDATED IN MIDDLEWARE
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JUVET WALKTHROUGH
R O U T E R
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JUVET WALKTHROUGH
C O N T R O L L E R
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CONTROLLER
> ACTION PER REQUEST
> PREPARE + SEND RESPONSE(S)
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JUVET WALKTHROUGH
T E A M S C H E M A
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JUVET WALKTHROUGH
U S E R S C H E M A
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JUVET WALKTHROUGH
T E A M M AT E S C H E M A
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JUVET WALKTHROUGH
C O N T R O L L E R
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T E M P L AT E
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JUVET WALKTHROUGH
S E N D I N G T E M P L AT E
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TEMPLATES
> PLATFORM INDEPENDENT
> SENT BACK AS A RESPONSE
> INTERLACE DATA
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like MVC Apps
CHATBOTS
The
tr
adeo
ff
s on building
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ROUTING
A NICE
BLACK BOX
YOUR APP
ROUTER
CONTROLLERS
TEMPLATES
AUTHORIZATION
LOW-LEVEL API
PLATFORM LIBRARIES
HIDE THE PLUMBING
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FAMILIAR PATTERN
MODEL
VIEW CONTROLLER
USER
SEES USES
MANIPULATES
UPDATES
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EVERYTHING HAS A PLACE
TEMPLATES
CONTROLLERS
MODELS ROUTES
> BUSINESS LOGIC > HANDLES PLATFORM REQUESTS
> RUNS MIDDLEWARE
> PASSES CONTEXT
> CREATES CONTROLLER
> RUNS ACTION
> HANDLES REQUEST
> PREPARES RESPONSE
> RENDERS RESPONSE(S)
> RETRIEVE DATA
> UPDATE DATA
> INTEGRATES DATA
> PROVIDES RESPONSE
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EXTENSION POINTS
USER
REQUEST
PLATFORM APP
ROUTER FINDS ROUTE
MIDDLEWARE IS RUN
CONTROLLER IS CREATED
ACTION IS CALLED
TEMPLATE IS RENDERED
RESPONSE IS SENT
USER
RESPONSE
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OVERKILL FOR SIMPLE BROADCAST
PLATFORM
GITHUB
> CHAT.POSTMESSAGE
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HARDER TO DEBUG
> (PHOENIX.ROUTER.NOROUTEERROR) NO ROUTE FOUND FOR POST /SLACK/ACTIONS (TATSUWEB.ROUTER)
> (TATSU 0.0.11) LIB/PHOENIX/ROUTER.EX:405: TATSUWEB.ROUTER.CALL/2
> (COWBOY 2.9.0) /TATSU_NEXT/DEPS/COWBOY/SRC/COWBOY_HANDLER.ERL:37: :COWBOY_HANDLER.EXECUTE/2
> (TATSU 0.0.11) LIB/TATSU_WEB/ENDPOINT.EX:1: TATSUWEB.ENDPOINT.PLUG_BUILDER_CALL/2
> …
> …
> …
> …
> …
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> …
C A L L S T A C K
BETTER TEMPLATING
COMPONENTS PARTIALS SEPARATE PLATFORMS
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IN-HOUSE AUTHENTICATION
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GENERATORS
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GENERATORS
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BETTER ERROR MESSAGES
> (PHOENIX.ROUTER.NOROUTEERROR) NO ROUTE FOUND FOR POST /SLACK/ACTIONS (TATSUWEB.ROUTER)
> …
>…
> …
> …
> …
> …
> …
> ??? 💀😅
C A L L S T A C K
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RANDOM ACCESS MEMORY
USER
CAN YOU
SCHEDULE
A MEETING?
APP
I SURE CAN.
WITH WHOM?
USER
WITH TIM.
APP
GOT IT. WHEN?
USER
TOMORROW AT 2.
APP
DONE.
I SCHEDULED A
MEETING WITH
TIM TOMORROW
AT 2.
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RANDOM ACCESS MEMORY
CAN YOU SCHEDULE
A MEETING?
USER
CAN YOU SCHEDULE
A MEETING
WITH TIM
TOMORROW AT 2?
APP
DONE.
I SCHEDULED
YOUR MEETING
WITH TIM FOR
TOMORROW AT 2.
CAN YOU SCHEDULE
A MEETING?
USER
ACTUALLY CAN
YOU MAKE IT FOR 3?
APP
DONE.
I RE-SCHEDULED
IT FOR
TOMORROW AT 3.
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RANDOM ACCESS MEMORY
DETECT PARAMETERS ALLOW CHANGE
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DISCOVERABILITY
T R A I N I N G W H E E L S
ARE YOU READY FOR
THE MEETING?
YOU CAN REPLY
WITH ‘Y’ES OR ’N’O.
APP USER
YES.
MEETING SCHEDULED!
DID YOU KNOW YOU
CAN REQUEST A RESCHEDULE
BY REPLYING
‘RE-SCHEDULE’?
APP
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VALIDATION
ANDY WANTS TO MEET
WITH YOU TODAY AT 2.
APP
ARE YOU AVAILABLE?
USER
BLERG.
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VALIDATION
I’M SORRY ‘BLERG’ IS
NOT AN ANSWER.
APP
ACKNOWLEDGE THE RESPONSE
1.
YOU CAN RESPOND ‘YES’
OR ‘NO’
APP
PROVIDE CORRECT OPTIONS
2.
ANDY WANTS TO MEET
WITH YOU TODAY AT 2.
APP
ARE YOU AVAILABLE?
RE-ASK THE QUESTION
3.
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SELECTION
WHERE DO YOU WANT TO
MEET MACKENZIE
TONIGHT?
APP USER
1.
1. COFFEE SHOP
2. RESTAURANT
3. BAR
APP
O P T I O N R E D U C T I O N
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SELECTION
OK. WHICH COFFEE
SHOP?
APP
O P T I O N R E D U C T I O N
1. CAFE JOE’S
2. STARBUCKS ON MAIN
3. PERKATORY
APP
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RESPONSE SAMPLING
YES
APP
OK
APP
CORRECT
APP
WRONG
APP
NOPE
APP
LOOKS GOOD
APP
👍
APP
✌
APP
THAT’S WHAT SHE SAID
APP
COOL
APP