As you know, the @assigns map of connection in Phoenix is the data map of variables to be rendering in view templates. We often use this conn.assigns to store our value. But how to store a function inside this?

Inspired by Airbnb/Epoxy library, I recreate a small and lightweight similar library for iOS.

Making UITableView scrolling smooth again with view caching, for heavy loaded views.

Of course, we don't send real bitcoin, it's real money right now. This tutorial will help you get some bitcoin testnet then create and sign the transaction with btcd.

In this tutorial, we will dive in btcd source code to see how a transaction in bitcoin got signed.

The btcec package implements elliptic curve cryptography, helps you working with bitcoin public, private keys and addresses. It's also the algorithm needed to sign and verify data.

This series of posts will cover some implement of Bitcoin in BTCD, help you understand how a Bitcoin client works and how multiple parts of Bitcoin components works together.