Programming blockchain 101 - (Ethereum Solidity)

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Powerpoint presentation of deploying simple smart contract code to the blockchian. How to use Remix, Metamask and how to code smart contract using Solidity.

Technologie

Programming
Blockchain 101
Remix and Solidity
Bogdan Fiedur bogdanfiedur@gmail.com

Programming Revenue Sharing - Smart
contract

Deploying smart contract - Remix
["0x853A3F142430658A32f75A0dc891b98BF4bDF5c1","0x14723a09acff6d2a60dcdf7aa4aff308fddc160c"]

Reading smart contract - Remix
["0xca35b7d915458ef540ade6068dfe2f44e8fa733c","0x14723a09acff6d2a60dcdf7aa4aff308fddc160c"]

Execute smart contract
Execute shareRevenue() Function

Get fake ether
Ether faucet
http://faucet.ropsten.be:3001/

Access Blockchain Explorer ropsten
https://ropsten.etherscan.io/

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Programming blockchain 101 - (Ethereum Solidity)

1. Programming Blockchain 101 Remix and Solidity Bogdan Fiedur bogdanfiedur@gmail.com

2. Programming Revenue Sharing - Smart contract

3. Programming Revenue Sharing - Smart contract

4. Programming Revenue Sharing - Smart contract

5. Programming Revenue Sharing - Smart contract

6. Programming Revenue Sharing - Smart contract

7. Remix - configuration

8. Remix - configuration

9. Remix - configuration

10. Deploying smart contract - Remix ["0x853A3F142430658A32f75A0dc891b98BF4bDF5c1","0x14723a09acff6d2a60dcdf7aa4aff308fddc160c"]

11. Deploying smart contract - Remix

12. Reading smart contract - Remix ["0xca35b7d915458ef540ade6068dfe2f44e8fa733c","0x14723a09acff6d2a60dcdf7aa4aff308fddc160c"]

13. Execute smart contract Execute shareRevenue() Function

14. Analyze transactionAnalyze transaction

15. Install Metamask https://metamask.io/

16. Get fake ether Ether faucet http://faucet.ropsten.be:3001/

17. Deploy contract on Ropsten network

18. Deploy contract to Ropsten

19. Access Blockchain Explorer ropsten https://ropsten.etherscan.io/

20. Access Blockchain Explorer

21. View Your Address - Blockchain Explorer

22. View Transaction - Blockchain Explorer

23. View Contract - Blockchain Explorer

24. Verify your source code

Notes de l'éditeur

1 . version2. Class vs Contract 3. Variables are pubic, anyone can see them.
1. Event vs log
Constructor Attributes of msg. msg.data (bytes): complete calldata msg.gas (uint): remaining gas msg.sender (address): sender of the message (current call) msg.sig (bytes4): first four bytes of the calldata (i.e. function identifier) msg.value (uint): number of wei sent with the message
U - unsigned (meaning this type can only represent positive integers, not positive and negative integers) INT - integer 256 - 256 bits in size
Note amounts and select third account.
256 hash of Disburse(uint256t,uint256)