Examples Overview

This section provides complete, production-ready examples of Move contracts integrated with Ika dWallet functionality.

Available Examples

Example	Description	Key Features
Bitcoin Multisig	Multi-signature wallet for Bitcoin transactions	Governance voting, Taproot signatures, presign pools
KeySpring	Cross-chain wallet from any wallet or passkey	DKG, passkey auth, cross-chain ETH transactions

Example Structure

Each example includes:

Overview: What the contract does and its use cases
Architecture: How components work together
Key Code: Annotated code snippets
Full Source: Link to complete source code
Testing: How to test the implementation

Quick Start

1. Clone the Example

The Bitcoin multisig example is located at:

examples/multisig-bitcoin/contract/

2. Build the Contract

cd examples/multisig-bitcoin/contract
sui move build

3. Deploy to Testnet

sui client publish --gas-budget 100000000

Common Patterns Across Examples

All examples demonstrate these core patterns:

Contract Structure

public struct MyContract has key, store {
    id: UID,
    dwallet_cap: DWalletCap,
    presigns: vector<UnverifiedPresignCap>,
    ika_balance: Balance<IKA>,
    sui_balance: Balance<SUI>,
    dwallet_network_encryption_key_id: ID,
}

Payment Handling

fun withdraw_payment_coins(
    self: &mut MyContract,
    ctx: &mut TxContext,
): (Coin<IKA>, Coin<SUI>) {
    let ika = self.ika_balance.withdraw_all().into_coin(ctx);
    let sui = self.sui_balance.withdraw_all().into_coin(ctx);
    (ika, sui)
}
 
fun return_payment_coins(
    self: &mut MyContract,
    ika: Coin<IKA>,
    sui: Coin<SUI>,
) {
    self.ika_balance.join(ika.into_balance());
    self.sui_balance.join(sui.into_balance());
}

Session Management

fun random_session(
    coordinator: &mut DWalletCoordinator,
    ctx: &mut TxContext,
): SessionIdentifier {
    coordinator.register_session_identifier(
        ctx.fresh_object_address().to_bytes(),
        ctx,
    )
}

Building Your Own

Use these examples as templates for your own contracts:

Copy the example structure
Modify the business logic
Adjust access controls
Add your specific features

Next Steps

Start with the Bitcoin Multisig Example
Try the KeySpring Cross-Chain Wallet
Review Core Concepts for fundamentals
Check Integration Patterns for common patterns

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