** Ethereum Developer's Certification course: https://www.edureka.co/ethereum-developer-course ** This Edureka's Solidity Tutorial video is intended to guide you through the basics of Ethereum's smart contract language called solidity. Through the course of this video you will go through the following topics: 1. Smart Contract Programming 2. Smart Contract Languages 3. What is Solidity? 4. Solidity Tools 5. Solidity Programming -structure of a contract -operators -data types -data structure -functions -control structure -exception handling 6. Application of what we learnt Here is the link to the Blockchain blog series: https://goo.gl/DPoAHR You can also refer this playlist on Blockchain: https://goo.gl/V5iayd

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Smart Contract
Tools
Disadvantages of
Smart Contracts
Advantages of Smart
Contracts
What is a Smart
Contract?
Invention of Smart
Contracts
Key Properties of
Smart Contracts
Development
Languages
Deploying a Smart
Contract on a Test Network
2
6 4
5
3
1
8
Agenda

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What to do with a Blockchain?
Back in the day, people didn’t really know
what to do with the blockchain.

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What is a Smart Contract?
Smart Contracts are executable logic that
runs on a blockchain network.

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Who invented Smart Contracts?
The idea of smart contracts date back to
papers in the early 1990’s published by
Nick Szabo

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Key Properties of Smart Contracts
01
02
The creator does not have
to participate in the process
after deploying the contract.
Autonomous
03
Contracts are able to collect
money, realize transactions,
distribute resources, issue and
spend funds to allow a larger
capacity of storage and
computation power.
Auto-Sufficient
Smart contracts are not focused on
one central server but are distributed
by various network points so they can
be referred to as being decentralized.
Decentralized

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Language of Development
Smart Contracts are mostly developed in
network specific scripting languages.
SolidityViper
Ivy-Lang Rust

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Advantages Of Smart Contracts
Data in a decentralized registry cannot be lost or cyber-
attacked.
Agent neutrality in signing deals.
No mistakes can be made due to the
absence of hand-filled forms.
Automation in signing deals saves time by
excludes human participation in transactions.
Everything is done by the prescribed code
Neutrality
Saves Time
Secure
Precision

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Disadvantages Of Smart Contracts
Every Smart Contract that is deployed is immutable after that.
So changes to business logic and general bug fixes become really
tough
The concept of a decentralized backend is hard to
comprehend for inexperienced developers.
Smarts Contracts even though an old idea, is a fairly new
technology in application. Hence the community is small
and people are sceptic
Difficult To Understand
Maintenance
New Technology

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Smart Contract Tools
FrameworkTest Network
Online
Compiler
Wallet
A number of tools are necessary
for the development of smart
contracts

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Smart Contract Use Cases
GAMBLING
Smart Contracts ensure that
the gambling money is
distributed without any error
FINANCE
Financial contracts generally take days
to go through their regulations. With
Smart contracts these processes can be
easily automated
SUPPLY CHAIN
A smart contract can keep tabs on
“possession” of a product all the way along
the line of distribution, solidifying the trust of
exactly where to find the package
VOTING
Smart Contracts can be used to
ensure complete transparency
for voting procedures
INSURANCE POLICIES
Smart contracts reduce the administrative costs
associated with fulfilling policy procedures and
ensures transparency and trust in the process is
visible to all stakeholders and all regulatory bodies
AUTOMATION OF ORGANISATIONS
Smart contracts can be used to automate small
scale organisations . These organisations are
popularly known as Decentralized Automate
Organisations

12. Now let’s deploy our very own
contract on a test network.
Requirements
- Node.js installed
-NPM installed

13. We’ll be using the following
technologies
• Web3.js (frame-work)
• TestRPC (test network)
• Solidity (scripting language)
• Remix Browser(compiler)

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Workflow
Start
Create our
Smart Contract
01
Create a Simple
front-end to
interact with
contract
03
Set up our Test
Network
02
Deploy
04