Smart Contracts and dApps

Everything you need to start building decentralized applications, smart contracts, and integrations on top of DecentralChain: developer tools, client libraries, wallet integration, step-by-step how-to guides, and the concepts behind dApps, smart accounts, smart assets and Blockchain Updates.

New to smart contracts on DecentralChain? Start with the Smart Contracts Overview, then build and launch one in Creating and Launching a dApp.

Developer Tools

Ride REPL, a node’s compiler endpoints and starter templates for writing and testing smart contracts.

Client Libraries

TypeScript and Java SDKs: install, connect to the Testnet, sign and broadcast.

Wallet Integration

Connect dApps to Cubensis Connect and sign transactions on behalf of users.

How-To Guides

Task-by-task recipes: transactions, airdrops, payments, token exchange, voting and list arguments.

Smart Contracts

dApps, smart accounts and smart assets: how each kind of script works, with Testnet walkthroughs.

Blockchain Updates

Stream every block, state change and rollback from your own node.

Open Source

All SDK packages are published under the Decentral-America GitHub organization.

MIT Licensed

Every official SDK package is released under the MIT license.

Smart Contracts and dApps

• Developer Tools
  • At a Glance
  • Compile with a Node
  • Ride REPL
  • Starter Templates
  • Surfboard
  • ride-js and @decentralchain/ride
  • DecentralChain IDE
  • Explorer and Faucet
• Client Libraries and SDK
  • Which package do I need?
  • SDKs by Language
• How-To Guides
  • Build, Sign, and Broadcast a Transaction
  • Issuing a Token
  • Sending a Transaction That Depends on Another
  • Reading Blockchain Data
  • Signing with a Ledger Hardware Wallet
• Wallet Integration
  • Recommended: Signer + Provider
  • Direct: the CubensisConnect browser API
• Node gRPC API
  • Installing (once published)
  • Connecting
  • APIs
  • Blockchain Updates
• Data Service API
  • Public endpoints
  • Installing
  • Connecting
  • Methods
  • Example: exchange history for a pair
  • Matcher address
• Smart Contracts Overview
  • Three Kinds of Script
  • From Source to Chain
  • Limits
  • Fees
  • Failed Transactions
  • Common Mistakes
  • Next Steps
• Creating and Launching a dApp
  • Before You Start
  • Write the Script
  • Check the Complexity
  • Configure and Deploy
  • Call the dApp
  • Read the dApp’s State
  • Finish the Campaign
  • Changing a dApp Later
  • Moving to Mainnet
• Smart Accounts
  • How Verification Works
  • Walkthrough: a 2-of-3 Multisig Account
  • Walkthrough: an Escrow Account
  • Inspecting a Smart Account
• Smart Assets
  • Rules
  • What the Script Checks
  • Walkthrough: a Token Only Allowlisted Accounts Can Hold
  • Replacing the Script
  • Inspecting a Smart Asset
• Blockchain Updates
  • When to Use It
  • Run It on Your Own Node
  • The API
  • What an Update Contains
  • Writing a Reliable Consumer
• Matcher API
  • Matcher Settings
  • Markets and Order Books
  • Prices and Amounts
  • Place and Cancel an Order
  • Order Status
  • Requests Signed with Your Key
  • Errors