// Solidity Contract Orchestration Example
// Shows how to easily integrate dist_agent_lang orchestration with existing Solidity contracts
@trust("hybrid")
@chain("ethereum", "polygon", "arbitrum")
@interface("typescript")
service SolidityOrchestrator {
// Registry of Solidity contract addresses
solidity_contracts: map<string, map<int, string>>; // contract_name -> (chain_id -> address)
// Initialize with Solidity contract addresses
fn initialize() {
// Example: Uniswap V2 Router (Solidity contract)
self.solidity_contracts["UniswapRouter"] = {
"1": "0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D", // Ethereum
"137": "0x4752ba5dbc23f44d87826276bf6fd6b1c372ad24", // Polygon
"42161": "0x4752ba5dbc23f44d87826276bf6fd6b1c372ad24" // Arbitrum
};
// Example: Aave Lending Pool (Solidity contract)
self.solidity_contracts["AaveLendingPool"] = {
"1": "0x7d2768dE32b0b80b7a3454c06BdAc94A69DDc7A9", // Ethereum
"137": "0x8dFf5E27EA6b7AC08EbFdf9eB090F32ee9a30fcf" // Polygon
};
// Example: ERC20 Token (Solidity contract)
self.solidity_contracts["USDC"] = {
"1": "0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48", // Ethereum
"137": "0x2791Bca1f2de4661ED88A30C99A7a9449Aa84174" // Polygon
};
log::info("orchestrator", "Solidity contracts registered");
}
// Generic function to call any Solidity contract
fn call_solidity_contract(
contract_name: string,
chain_id: int,
function_name: string,
args: map<string, any>
) -> string {
// Get contract address
let contract_address = self.solidity_contracts[contract_name][chain_id];
if (contract_address == null) {
log::error("orchestrator", "Contract " + contract_name + " not found on chain " + chain_id);
return "error: contract not found";
}
// Call the Solidity contract function
let result = chain::call(chain_id, contract_address, function_name, args);
log::info("orchestrator", "Called " + function_name + " on " + contract_name);
return result;
}
// Orchestrate a DeFi operation using multiple Solidity contracts
fn orchestrate_defi_operation(
token_a: string,
token_b: string,
amount: int,
chain_id: int
) -> map<string, any> {
log::info("orchestrator", "Starting DeFi orchestration");
// Step 1: Check balance on ERC20 token (Solidity contract)
let balance = self.call_solidity_contract(
"USDC",
chain_id,
"balanceOf",
{"account": auth::session().user_id}
);
log::info("orchestrator", "Balance: " + balance);
// Step 2: Approve Uniswap to spend tokens (ERC20 Solidity contract)
let approve_result = self.call_solidity_contract(
"USDC",
chain_id,
"approve",
{
"spender": self.solidity_contracts["UniswapRouter"][chain_id],
"amount": amount
}
);
log::info("orchestrator", "Approval: " + approve_result);
// Step 3: Execute swap on Uniswap (Solidity contract)
let swap_result = self.call_solidity_contract(
"UniswapRouter",
chain_id,
"swapExactTokensForTokens",
{
"amountIn": amount,
"amountOutMin": amount * 95 / 100, // 5% slippage
"path": [token_a, token_b],
"to": auth::session().user_id,
"deadline": chain::get_block_timestamp(chain_id) + 1800 // 30 minutes
}
);
log::info("orchestrator", "Swap completed: " + swap_result);
return {
"balance": balance,
"approval": approve_result,
"swap": swap_result,
"status": "success"
};
}
// Multi-chain orchestration: Find best price across chains
fn find_best_price_across_chains(
token_a: string,
token_b: string,
amount: int
) -> map<string, any> {
log::info("orchestrator", "Finding best price across chains");
let prices = {};
let chains = [1, 137, 42161]; // Ethereum, Polygon, Arbitrum
// Check price on each chain
for chain_id in chains {
let router_address = self.solidity_contracts["UniswapRouter"][chain_id];
if (router_address != null ) {
// Get quote from Uniswap (Solidity contract)
let quote = self.call_solidity_contract(
"UniswapRouter",
chain_id,
"getAmountsOut",
{
"amountIn": amount,
"path": [token_a, token_b]
}
);
prices[chain_id] = quote;
log::info("orchestrator", "Chain " + chain_id + " quote: " + quote);
}
}
// Find best price
let best_chain = null;
let best_price = 0;
for chain_id in chains {
if (prices[chain_id] > best_price ) {
best_price = prices[chain_id];
best_chain = chain_id;
}
}
return {
"best_chain": best_chain,
"best_price": best_price,
"all_prices": prices
};
}
// Orchestrate lending operation using Aave (Solidity contract)
fn orchestrate_lending(
asset: string,
amount: int,
chain_id: int
) -> map<string, any> {
log::info("orchestrator", "Orchestrating lending operation");
// Step 1: Approve Aave to spend tokens
let approve = self.call_solidity_contract(
asset,
chain_id,
"approve",
{
"spender": self.solidity_contracts["AaveLendingPool"][chain_id],
"amount": amount
}
);
// Step 2: Deposit to Aave (Solidity contract)
let deposit = self.call_solidity_contract(
"AaveLendingPool",
chain_id,
"deposit",
{
"asset": asset,
"amount": amount,
"onBehalfOf": auth::session().user_id,
"referralCode": 0
}
);
// Step 3: Get user account data from Aave
let account_data = self.call_solidity_contract(
"AaveLendingPool",
chain_id,
"getUserAccountData",
{"user": auth::session().user_id}
);
return {
"approval": approve,
"deposit": deposit,
"account_data": account_data,
"status": "success"
};
}
// Register a new Solidity contract for orchestration
fn register_solidity_contract(
contract_name: string,
chain_id: int,
contract_address: string
) -> bool {
if (self.solidity_contracts[contract_name] == null ) {
self.solidity_contracts[contract_name] = {};
}
self.solidity_contracts[contract_name][chain_id] = contract_address;
log::info("orchestrator", "Registered " + contract_name + " on chain " + chain_id);
return true;
}
// Get all registered Solidity contracts
fn get_registered_contracts() -> map<string, map<int, string>> {
return self.solidity_contracts;
}
}
// Example: AI-powered DeFi orchestration
@trust("hybrid")
@chain("ethereum","polygon","arbitrum")
@ai
service AIDefiOrchestrator {
orchestrator: SolidityOrchestrator;
fn initialize() {
self.orchestrator = SolidityOrchestrator::new();
self.orchestrator.initialize();
}
fn ai_optimized_swap(user_request: string) -> map<string, any> {
// Use AI to analyze market conditions
let market_analysis = ai::analyze_market({
"request": user_request,
"current_prices": self.get_current_prices()
});
// AI recommends best chain and strategy
let recommendation = ai::generate_recommendation(market_analysis);
// Execute orchestration based on AI recommendation
let result = self.orchestrator.orchestrate_defi_operation(
recommendation.token_a,
recommendation.token_b,
recommendation.amount,
recommendation.chain_id
);
return {
"ai_analysis": market_analysis,
"recommendation": recommendation,
"execution": result
};
}
fn get_current_prices() -> map<string, any> {
// Get prices from oracles
return oracle::fetch("price_feed", {});
}
}