Flow Blockchain Developer Bootcamp (Free)

Tutorial: https://docs.onflow.org/cadence/tutorial/01-first-steps/

In this tutorial, we will learn how to use smart contracts, switch accounts, and view account state.

Cadence is a new smart contract programming language for use on the Flow Blockchain. Cadence introduces new features to smart contract programming that help developers ensure that their code is safe, secure, clear, and approachable. Some of these features are:

• Type safety and a strong static type system

• Resource-oriented programming, a new paradigm that pairs linear types with object capabilities to create a secure and declarative model for digital ownership by ensuring that resources (and their associated assets) can only exist in one location at a time, cannot be copied, and cannot be accidentally lost or deleted

• Built-in pre-conditions and post-conditions for functions and transactions

• The utilization of capability-based security, which enforces access control by requiring that access to objects is restricted to only the owner and those who have a valid reference to the object

Let's write and deploy our first smart contract!

A smart contract is a program that verifies and executes the performance of a contract without the need for a trusted third party. Programs that run on blockchains are commonly referred to as smart contracts because they mediate important functionality (such as currency) without having to rely on a central authority (like a bank).

Before you get started with Flow, you need to understand how accounts and transactions are modeled.