ICO for Developers is a short course showcasing the power and limitations of the ethereum programing language - Solidity.

Other than being a cryptocurrency, the biggest use case for Ethereum at the moment is the ability to launch a Crowd funding app (ICO).

This course will focus on giving you the development skills to launch your ICO. It should be a good learning experience for developers who are new to solidity and want to jumpstart into creating ICO Smart Contracts.

Try to understand the concepts rather than jumping into the syntax straight away. It will make life a lot easier when you start coding.

Solidity looks like javascript but its not. The terminologies can be confusing and there are pitfalls for the unwary.

• Object Oriented programming skills. Javascript knowledge useful but not essential.

• Own machine (Mac preferred) with common dev tools installed, ie git, node, npm, ...etc.

You should be able to:

• Install truffle.

• Install testrpc

• Install ether explorer

• fork [email protected]:bernardpeh/ICO-for-developers.git

• Blockchain, Bitcoin and Ethereum.

• Merkle tree, Gossip Network, Consensus.

• EVM, Opcodes, memory management.

• 2 Types of Ethereum Accounts - EOA and CA.

• Transaction vs Messages.

• Gas and GasPrice.

• Ethereum Clients - Geth and Parity.

• Ethereum Wallet - Mist, parity and Metamask.

• Basic Solidity walkthrough.

• ABI, Remix and Tuffle.

• Security and Coding Patterns.

• Upgradable Contracts.

• ICOs and Crowdsale Contract.

• Testing and BDD.

• Deploying a real Crowdsale contract to the main Ethereum Network.

• Simple Crowdsale frontend.

1. In a new terminal, start testrpc

testrpc -m "enlist illness roast pair check danger drill noble dove repeat great margin"

You should get these newly generated accounts if your mnemonic seed above is correct.

==================
(0) 0x293da2ded324c4f5e335fe75f17afd1801736b21
(1) 0x028a966c9680f941faf58a9f293167280b6b1764
(2) 0xe18a29128d7336d6e3561a122e58fd9cc840b5fc
(3) 0x772ff6c576a3d8ad54f0f6e5558c7e0895a58968
(4) 0x31204f76910c0082cd271e02e41e131c43846e51
(5) 0x9b72ee15fa2d60666ef0347cde3c99438854b27b
(6) 0x786966540fa6643c77aa28cc4f28dd7c9adfc88a
(7) 0x85510a85a8f7c8e38779f4a124679650df1b5145
(8) 0x7eb114442c618b6b381a04d330abc7126efb0f0b
(9) 0x77dde6f9bc9c2a002cbc49d11dd3656e233a91ca

Private Keys
==================
(0) 1ae970c3f9ce3be299f23f226308d3207e78347d754accd4c0d396ddad4fbe60
(1) 5b7b24d7c3e3ec9efb14bec69886c1286cb986b4650d71be86cc59c67c896578
(2) b07c49666224e59ee668931be62be261f4fec22fc60cce8dbdf0431ae63261e9
(3) 7fd5dc85cf0a85fccb2a4c86eb6fbacc54b9d10d31933fa48f7d6f3ea931d10e
(4) 10d19fda38342c526b453ddd2c2115add95c4bf2eddef9d395b9b79ffbf7e272
(5) 560c1e23fc51786ccf7efa849b2a1a29d4f41367a61aa30d560cdf71ce337086
(6) 40446289a7d88982918ece6e82e5592c6c4d69e3d3d32714439454cea8a7afb6
(7) 232efe19c8406cbe5762170865bd95fbca20f90b3f6d22f528de3a78b26d3bb3
(8) c1cd9a4f1cfe72846b5422d5e99a6cd5542c7b4ad72de3b28385e1e0545b84b4
(9) 831b9ac6996aa20ff4f5622fb98fdda35ebc5412b5b05d2f95269f54fe9d8a06

2. In a separate terminal, start tutorial 1 and follow the readme instructions from there

-> git checkout tut_1 

• Using Testrpc, Send x amount of ether from account0 to account1 such that account0 will have 99 ether exactly.

• Base on ethstats.net, calculate max transactions per second of the ethereum network. Check your answer with https://etherchain.org/

• How can this code be helpful

address.call(bytes4(bytes32(sha3("SomeFunction(uint,bytes32)"))), 1, "hello")

• Many people like the old remix browser better: https://yann300.github.io
• solidity flattener is useful to combine truffle files into one to load into remix: https://github.com/BlockCatIO/solidity-flattener
• Parity client seems to be more stable for quick syncing ropsten network

• Solidity Doc
• Truffle framework
• Introduction to Accounts, Transactions and Gas
• Inside a transaction