Codemotion, Rome 13/04/2018 Do you have an idea for a startup and don't want to pay for scaling it up? Forget about bandwidth problems, servers to install and pay for, with the power of IPFS, DAT and the blockchain. In this talk, we will explore how to build an HTML5 DAPP (distributed application) with EmbarkJS, and figure out how to rethink servers, storage, messaging, data and payments in a distributed and decentralised way with the help of Ethereum's smart contracts, IPFS and DAT distributed storage. Discover more at http://blog.zigolab.it

1. LEARN HOW TO BUILD
DECENTRALIZED AND SERVERLESS
HTML5 APPLICATIONS
WITH EMBARKJS, ETHEREUM, DAT AND IPFS
April 13th 2018 – Codemotion, Rome
A l e s s a n d r o C o n f e t t i

2. 2
image from the work of Paul Baran, On Distributed Communications Networks 1964
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

3. 3
Image from Evolving terminology with evolved technology: decentralized versus distributed December 4, 2015
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

4. 4
Images from Evolving terminology pt. 2: topology vs ownership January 10, 2016
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

5. 2014
AWS Lamba
Elastic Function computing
2009
Node.js
2010
AKKA
Asyncronous WWW
2004
AWS
Elastic services
1993
CGI
1995
MySQL
Dynamic WWW
Static WWW
1990
HTTP/HTML
From decentralised arpanet to…
5
Alessandro Confetti - April 13th 2018 – Codemotion, Rome
2017
worldwide (de)centralised serverless computing
ARPANET
1984
DNS
1974
TCP
1969
Internet foundations

6. BigchainDB
Blockchain based database
20162015
Ethereum
Trustless (pure) P2P function computingDAT IPFS
Pure P2P storage sevice
2013 20142011
Namecoin
Blockchain based naming service
2009
Bitcoin
Trustless pure P2P payment service
Worldwide P2P network
1999
NAPSTER
2001
From usenet to…
6
2017
P2P computing
Self-organised decentralised service
USENET
1979
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

7. AWS LAMBDA SERVERLESS COMPUTING
7
Image from AWS Lambda official page
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

8. WEB
SERVER
Storage
1990 STATIC WEB-SITE
8
CLIENT
http
Index.html
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

9. LOAD
BALANCER
WEB
SERVER
Storage
WEB
SERVER
Storage
2000 STATIC WEB-SITE
9
CLIENT
http
Index.html
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

10. EU
PROXY
WEB
SERVER
Storage
WEB
SERVER
Storage
LOAD BALANCER
2017 STATIC WEB-SITE
10
CLIENT
http
Index.html
…US
WEB
SERVER
Storage
WEB
SERVER
Storage
LOAD BALANCER
WEB
SERVER
Storage
WEB
SERVER
Storage
LOAD BALANCER
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

11. P2P SERVERLESS COMPUTING
11
????
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

12. 12
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

13. Block 1Block …
Block 2
Block 4
ipfs
2017 IPFS STATIC WEB-SITE
13
CLIENT
IPFS
NODE
IPFS
NODE
IPFS
NODE
IPFS
NODE
Storage
HTTP/IPFS
GATEWAY
Storage
Index.html
block
1
block
4
block
7
block
2
block
5
block
8
block
3
block
6
block
9
Storage
StorageStorage
Index.html
http
ipfs
Index.html
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

14. HOW TO INSTALL IPFS
14
wget https://dist.ipfs.io/go-ipfs/v0.4.14/go-ipfs_v0.4.14_linux-amd64.tar.gz
tar -xvfz go-ipfs_v0.4.14_linux-amd64.tar.gz
cd go-ipfs
./install.sh
ipfs init
ipfs daemon
http://localhost:5001/webui
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

15. 15
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

16. 16
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

17. HOW TO INSTALL DAT
17
npm install -g dat
mkdir MyData
cd MyData
dat create
dat share —-http
http://localhost:8080
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

18. 18
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

19. 19
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

20. 20
Image and article about the left-pad incident from The Register
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

21. 21
STATIC HTTP SITE STATIC IPFS/DAT SITE
Bandwidth costs and capacity
is upon the site
Bandwidth costs and capacity
is upon the client
proxies, load balancers,
clusters and zones must be
configured and maintained
The P2P network is self-organising
Censorship can be easily enforced
thought DNS and IP Filtering
Content is resilient
to DSN and IP filtering
or deletion
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

22. 22
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

23. P2P SERVERLESS COMPUTING
23
IPFS/DAT BLOCKCHAIN
ETHEREUM
Front-end code for
weather app is hosted
on IPFS or DAT
Ethereum contract is executed on the EVM
and returns data back to user
(eventually storing data on the blockchain)
The smart contract is
triggered by the user or an
external oracle
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

24. 24
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

25. 25
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

26. HOW TO INSTALL EMBARKJS
26
# install ethereum
wget https://gethstore.blob.core.windows.net/builds/geth-darwin-amd64-1.6.0-
facc47cb.tar.gz
tar -xvfz geth-darwin-amd64-1.6.0-facc47cb.tar.gz
sudo mv geth-darwin-amd64-1.6.0-facc47cb/geth /usr/local/bin/geth
# install EmbarkJS
sudo npm -g install embark
embark demo
# install compatible ipfs version inside demo folder
mkdir demo/bin
cd demo/bin
wget https://dist.ipfs.io/go-ipfs/v0.4.11/go-ipfs_v0.4.11_darwin-amd64.tar.gz
tar -xvfz go-ipfs_v0.4.11_darwin-amd64.tar.gz
./ipfs init
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

27. 27
(DE)CENTRALISED
SERVLESS COMPUTING
DISTRIBUTED
SERVLESS COMPUTING
you don’t have to manage servers or services,
neither to worry how to scale or allocate them…
as long are you able to pay
or to cope with the provider’s rules
you don’t have to manage servers or services,
neither to worry how to scale or allocate them…
but you can help build the network
and been rewarded for it
Trust is upon the the provider Trust is upon the network
Resilience and scalability
through (de)centralised
clustering, sharding, zoning…
Resilience and scalability
through distributed networks
Alessandro Confetti - April 13th 2018 – Codemotion, Rome

28. WE ARE HIRING IN ITALY!
i n f o - i t @ t h o u g h t w o r k s . c o m
TECNOLOGY RADAR VOL17
https://info.thoughtworks.com/technology-radar-subscription.html

29. $ tail -f questions
29
Alessandro Confetti
aconfet@thoughtworks.com
twitter @zigolab
blog http://blog.zigolab.it