iamatypeofwalrus

What

Roll your own iPython Notebook server with Amazon Web Services (EC2) using their Free Tier.

What are we using? What do you need?

• An active AWS account. First time sign-ups are eligible for the free tier for a year
• One Micro Tier EC2 Instance
• With AWS we will use the stock Ubuntu Server AMI and customize it.
• Anaconda for Python.
• Coffee/Beer/Time

ejiro

/**
 * Sample access control list.
 */
rule EverybodyCanReadEverything {
    description: "Allow all participants read access to all resources"
    participant: "org.acme.sample.User"
    operation: READ
    resource: "org.acme.sample.*"
    action: ALLOW
}

thackerronak

NodeJS Chaincode Deploy and Test

start Docker
cd /fabric-samples/basic-network /basic network
Edit docker-compose.yml change line no 72 comment and 73 uncomment. //prod to devp network
Edit start.sh add ‘cli’ in 15 no. line (docker-compose -f docker-compose.yml up -d ca.example.com orderer.example.com peer0.org1.example.com couchdb cli)
./start.sh //run start script to up network
docker logs -f peer0.org1.example.com //log (1 terminal)
docker exec -it cli bash //peer (2 terminal)
cd /fabric-samples/chaincode/hyperledger/fabric/peer/nodefiles (3 terminal)

rosario

Eric Elliott's "Composing Software" Series

A collection of links to the excellent "Composing Software" series of medium stories by Eric Elliott.

• The Rise and Fall and Rise of Functional Programming
• Why Learn Functional Programming in JavaScript?
• A Functional Programmer’s Introduction to JavaScript
• Higher Order Functions
• Reduce
• Functors & Categories
• [Composing

gnidan

storing things with solidity for fun and confusion

uint64[] with 9 elements

storing [ 10, 11, 12, 13, 14, 15, 16, 17, 18 ]:

   ...

gorgos

// SPDX-License-Identifier: MIT
pragma solidity 0.7.2;

interface PoolInterface {
    function swapExactAmountIn(address, uint, address, uint, uint) external returns (uint, uint);
    function swapExactAmountOut(address, uint, address, uint, uint) external returns (uint, uint);
}

interface TokenInterface {
    function balanceOf(address) external returns (uint);