Playground

https://sway-playground.org/

Browser wallet

https://wallet.fuel.network/docs/install/

Install

https://github.com/FuelLabs/fuelup

rustup install stable
rustup update
rustup default stable

fuelup toolchain install latest

fuelup toolchain install beta-3
fuelup default beta-3

fuelup show
# switch
fuelup default latest

Update

fuelup self update

# generate test
cargo generate --init fuellabs/sway templates/sway-test-rs --name counter

New project

forc new counter_contract

# compile
forc build
# format
forc fmt

# node
fuel-core run --db-type in-memory
# deploy
forc deploy --unsigned

Topics

• no inheritance, no constructor, global memory, native assets, no for loop, utxo

• sway lib

• default values

• Program types overview

• Basic

  • variables (immutable, mut, type annotations)
  • built-in
    • primitive types (u64, bool, str[], b256)
    • compound type (tuple, struct, array)
  • blockchain types (Address, ContractId and Identity)
  • functions (return outputs, ref mut)
  • structs
  • tuples
  • enums
  • constants
  • configurable constants
  • std lib types - option
  • std lib types - result
  • control flow
    • if
    • match
    • while loop
  • logging
  • test in sway

• Blockchain

  • msg_sender (ownership)
  • base asset (wallet)
  • native support for assets (wrapped token)
  • events
  • storage map (simple, nested)
  • vector (storage, heap) (nft)
  • hash
  • crypto signature (air drop)
  • calling contracts (multi sig)
    • call
    • low level call
  • function purity
  • identifier (address and contract id)

• Advanced

  • methods
  • generics
  • traits
  • assembly

• Program types

  • contracts
  • libraries
  • scripts
  • predicates

Apps

• counter (storage)
• ownership (Identity type, msg_sender, configurable, Option, Error, imports)
• wallet (native assets, identity, access control, payable, output variables)
• wrapped token (contract_id, msg_asset_id, mint, burn, transfer)
• nft (log, nested storage map, private funcs, constant)
• airdrop (sway-libs, events, multi abi, multi contracts, storage map, sha256, test events)
• call (multiple contracts, call, low level call, calling other contracts (Rust SDK), fn_selector!)
• multi-sig (multi token, vec on heap, multi abi, loop, storage vec, events, low_level_call, hash, recover sig)
• otc (predicate, gtf)

TODO:

• assert, require, revert
• otc (predicate)
• bridge?
• clamm?
• liquidity book - amm
• uniswap v3 amm?
• escrow
• auction
• queue (generics)
• reentrancy guard?