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📄️ Developer Onboarding

This guide is for software development teams that are planning to build a decentralized application (dapp) on the Flow blockchain. The goal of this guide is to help you make key decisions that will affect the scope and structure of your dapp before you start building.

📄️ Anatomy of a Flow Dapp

The diagram below outlines the components of a typical dapp built on the Flow blockchain. While many dapps are structured differently, this architecture introduces fundamental concepts that will be discussed throughout this guide.

📄️ Smart Contract Testing

Achieving good test coverage is vital for assuring the quality of code written to be deployed on the Flow blockchain.

📄️ Testnet Testing

It is critical to test your applications and contracts thoroughly on the testnet as part of your road to the mainnet. Testing will help you understand how to create stable and robust applications using the Flow development stack.

📄️ Mainnet Account Setup

In order to deploy your smart contracts to the mainnet, you need to register, fund, and setup a new account.

📄️ Dapp Architectures on the Flow Blockchain

Introduction

📄️ NFT Drop Strategies

Exploring Different Strategies for NFT Drops

📄️ Off-chain Infrastructure

In addition to on-chain smart contracts, dapps also rely on off-chain infrastructure. For example, users often interact with a dapp through a web interface. In addition to this, some dapps rely on backend servers to query and index data from the blockchain. This section covers best practices for off-chain infrastructure on Flow.

📄️ How to Launch a Fungible Token on Flow

DISCLAIMER: PLEASE READ THE ENTIRETY OF THIS "DISCLAIMER" SECTION CAREFULLY BEFORE READING THIS GUIDE. THE INFORMATION CONTAINED WITHIN IS FOR COMMUNITY DISCUSSION AND CONTAINS GENERAL INFORMATION ONLY. NOTHING HEREIN CONSTITUTES LEGAL, FINANCIAL, BUSINESS, REGULATORY, OR TAX ADVICE OR GUIDANCE AS TO ANY POTENTIAL TOKEN LAUNCH OR PROJECT IN ANY SPECIFIC JURISDICTION. ANYONE READING THIS GUIDE MUST CONSULT LEGAL, FINANCIAL, TAX, REGULATORY, AND OTHER PROFESSIONAL ADVISORS OR EXPERTS FOR FURTHER GUIDANCE BEFORE LAUNCHING ANY TOKEN OR TOKEN-RELATED PROJECT. IT IS IMPERATIVE THAT INDEPENDENT LEGAL ADVICE IS SOUGHT TO DETERMINE THE LEGAL, REGULATORY, SECURITIES, OR OTHER REQUIREMENTS RELATED TO ANY AND ALL JURISDICTIONS WHERE A TOKEN LAUNCH OR SALE MAY OCCUR.

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📄️ Smart Contracts

At its core, a decentralized application is defined by the smart contracts it uses on the blockchain. Rather than relying on centralized application servers and databases, dapps model their core application logic using smart contracts, often referred to as the “on-chain” code.

📄️ User Accounts & Wallets

Each Flow blockchain user owns an account that holds their digital assets (e.g. currencies or NFTs). A Flow account is identified by an 8-byte address and is controlled by one or more public/private key pairs. Whoever has access to the private key can sign a transaction to access the assets inside the account.