The slides from my Webmonday talk, which I held on October 23th, 2017. The slides show how to develop decentralized applications with Solidity for the Ethereum blockchain.

1. 23.10.2017
How to develop DApps

2. About me
Co-Founder and CTO
Botconnect, Berlin
External Expert / Lecturer
Frankfurt School of Finance and
Management
Analyst in Residence
Crisp Research, Kassel
https://www.linkedin.com/in/moritz-strube/
https://twitter.com/mostwi
moritz.strube@botconnect.io

10. Smart contract
development

11. The contract and
truffle compile

12. solc - the compiler

13. web3.eth.compile - the JavaScript API

14. truffle.js
configuration file
testrpc
Test blockchain

15. truffle migrate
Artifacts are information about our contract
such as its deployed address and
Application Binary Interface (ABI). The ABI
is a JavaScript object defining how to
interact with the contract including its
variables, functions and their parameters.

16. Contract creation
and gas consumption

17. truffle test

18. truffle console

19. Creating a user interface
to interact with the smart
contract

20. Provider
JSON RPC Endpoint
testrpc geth
eth
parity
Blockchain
Testnet
private, local
Testnets
Public
Ropsten, Kovan,
Rinkeby
Block-
chain
Web3 instance
Web3 API
convenient interface for the RPC methods
DApp Frontend
JSON RPC
It is transport agnostic in that
the concepts can be used
within the same process, over
sockets, over HTTP, or in many
various message passing
environments.
JSON RPC

21. Calls / Transactions
Contract/
function
ABI
JSON
Call/
Transaction
Encoding of function name
and arguments (specification)
Truffle/
Web3 API

24. Frontend

25. Configuration
bs-config.json
package.json

29. Thank you.
https://www.linkedin.com/in/moritz-strube/
https://twitter.com/mostwi
moritz.strube@botconnect.io