Summary

We started this chapter by defining the four ground rules for a DApp. Those are open source, no single point of failure, presence of native tokens, and algorithm for proof of values. We discussed Johnston's law for DApps along with the three major types of DApps. We then went through the steps to develop a DApp. We discussed the frontend architecture of a DApp, then moved to ethercast and its various status-color mapping. We then got introduced to DAO as a limited liability company on a blockchain. We even coded a simple DAO from scratch and transferred tokens from a wallet. Lastly, we detailed down the recursive step exploit vulnerability, which resulted in a 50 million DAO hack. In Chapter 5, Deep-Diving into Smart Contracts, we will take a deep-dive into smart contracts, to learn how to build robust and scalable code.

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