Workshop-Agenda.md

• Overview

  • what are smart contracts, dev restrictions
  • Development tools: neo-boa & neo-python

• Hands-On 1

  • Check that Python 3.5.2 is installed
  • Clone and setup neo-python and neo-boa
  • Pull the privnet Docker image
  • Run Docker privnet and connect neo-python to it
    • use help, open wallet & rebuild

• Smart contract internals 1

  • Supported Python built-ins and functions by neo-boa
    • https://github.com/CityOfZion/neo-boa/blob/master/boa/code/vmtoken.py#L735 // boa.code.builtins
  • Runtime.Log + Notify
    • print —> Neo.Runtime.Log
  • Parameter & return value types: https://github.com/neo-project/docs/blob/master/en-us/sc/tutorial/Parameter.md
  • neo-python build command

• Hands-On 2

  • Very simple Print example
  • neo-python build & test process
    • See also: Smart Contract Parameters and Return Values

• Smart contract internals 2

  • Costs for deploying and running smart contracts: http://docs.neo.org/en-us/sc/systemfees.html
  • Storage
    • you can only store a bytearray, int, and strings in storage.
    • if you want to store more complex objects i'd take a look at the serialization example ([1], [2])
  • CheckWitness

• Hands On 3

  • Domain registration system
  • Deploy to privnet, invoke methods

• Smart contract internals 3

  • TriggerType.Verification and TriggerType.Application
  • timestamps + random numbers
    • timestamps/block time: boa/src/tests/blockchain // from boa.blockchain.vm.Neo.Header import GetTimestamp
    • random numbers: docs from ambethia on first dapp comp project (reference)
  • NEP-5 token standard

• Hands-On 4

  • NEX ICO template