Decentralized Application

EOSIO blockchain use account system to

Kickoff

You are three easy steps away from being a blockchain developer:

1. EOS Studio IDE and EOS account preparation

• Launch EOS Studio IDE Web: https://app.eosstudio.io

• Login into Studio using Github account

• Create an EOS account in Cloud network

2. Backend preparation

• Create a project

• Build

• Deploy

3. Frontend preparation (TODO add a simple test page with EOSJS API call)

• Launch test page

• Fill the account

• Click ‘Hi’ button

That’s it, that’s all, you are a blockchain developer now.

Talk is cheap. Show me the code.

Backend (Smart Contract)

• using C++

• Header file (hpp) and source file (cpp)

hpp:

• [[eosio::contract]] syntax

• Constructor and member initializer lists (https://en.cppreference.com/w/cpp/language/initializer_list)

• Actions

• Define table and table instance

cpp:

• function implementation

• require_auth (maybe ignore it)

• multi_index get a record (get)

• multi_index add a new record (emplace)

• multi_index replace an existing record (modify)

• C++ callback function

Frontend (TODO)

From ‘Hello world!’ to ‘Hello xxx!’ (xxx from blockchain) after clicking a button.

Offer a reset button.

• React setup

• EOSJS setup

• onClick binding

• EOSJS API fetch

• update state