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View CustomErrorTest.abi
"inputs": [
"internalType": "address",
"name": "account",
"type": "address"
"internalType": "uint256",
yosriady / AccessControlledAggregator.sol
Created February 4, 2021 17:38
Created using remix-ide: Realtime Ethereum Contract Compiler and Runtime. Load this file by pasting this gists URL or ID at
View AccessControlledAggregator.sol
*Submitted for verification at on 2020-12-15
pragma solidity 0.6.6;
* @dev Wrappers over Solidity's arithmetic operations with added overflow
* checks.
yosriady / SimpleToken.sol
Last active October 19, 2019 06:27
Sample code for 'Getting Started with Smart Contracts' talk at
View SimpleToken.sol
pragma solidity ^0.5.11;
contract SimpleToken {
string public constant name = "GeekCamp Token";
string public constant symbol = "GEEK";
uint8 public constant decimals = 0;
address public minter;
mapping (address => uint) private _balances;
View SimpleERC20.sol
pragma solidity ^0.5.10;
interface ISimpleERC20 {
event Transfer(address indexed from, address indexed to, uint256 value);
function mint(address to, uint amount) external;
function balanceOf(address account) external view returns (uint);
function transfer(address to, uint amount) external returns (bool);
View ERC20.sol
pragma solidity ^0.5.4;
* @dev Implementation of the {IERC20} interface.
* This implementation is agnostic to the way tokens are created. This means
* that a supply mechanism has to be added in a derived contract using {_mint}.
* For a generic mechanism see {ERC20Mintable}.
* TIP: For a detailed writeup see our guide

Knowledge has a half-life. You should apply it, or it expires. Either we forget, or that knowledge becomes obsolete. Knowing something matters less than doing something consistently.

yosriady /
Last active September 21, 2016 09:22
NUS Hackers Talk Proposal

Talk Title:

GraphQL in an Age of REST

Talk Description:

GraphQL is an application layer query language from Facebook. With GraphQL, you can define your backend as a well-defined graph-based schema. Then client applications can query your dataset as they are needed. GraphQL’s power comes from a simple idea — instead of defining the structure of responses on the server, the flexibility is given to the client. In this talk, discover a new approach to build and expose Web APIs. Will GraphQL do to REST what REST did to SOAP?


Keybase proof

I hereby claim:

  • I am yosriady on github.
  • I am yos ( on keybase.
  • I have a public key whose fingerprint is 4878 0825 CF03 CC90 FF13 624A EFCE 375C 3DFC DBDD

To claim this, I am signing this object:

yosriady /
Last active September 5, 2016 05:19
NUS Hackers Talk Application

Talk Title:

Entity Component Systems in Elixir

Talk Description:

Entity-Component-System (ECS) is a distributed and compositional architectural design pattern that is mostly used in game development. Elixir is a dynamic, functional language built on top of the Erlang VM designed for building scalable and maintainable applications. In this talk, discover how we can use both ECS and Elixir in a novel approach to structure our programs beyond the traditional OO/inheritance paradigm. We'll cover:

yosriady / component.ex
Last active January 11, 2017 10:10
Entity Component System in Elixir
View component.ex
# A component is a minimal data object needed for a specific purpose.
# A component has no behaviour.
# A component class validates a given configuration and creates run-time data structures.
# Implemented as an Elixir Agent!
defmodule Component
@type options :: [key: type]
# Functions that have to be implemented by Components (if any)
@callback new(options) :: struct()