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Multi-Asset Support in Market/Escrow

Overview

The Market and Escrow contracts support multiple asset types including XLM, USDC, and custom tokens.

Supported Assets

Native XLM

  • Type: Stellar native asset
  • Trustline: Not required
  • Symbol: XLM
  • Decimals: 7

USDC (Circle)

  • Type: Stellar token
  • Trustline: Required
  • Symbol: USDC
  • Decimals: 7

Custom Tokens

  • Type: Any Stellar token
  • Trustline: Required
  • Symbol: Varies
  • Decimals: Varies

Asset Handling

Token Contract Interface

All tokens must implement the Soroban token interface:

pub trait Token {
    fn transfer(from: Address, to: Address, amount: i128);
    fn balance_of(account: Address) -> i128;
    fn symbol() -> String;
    fn decimals() -> u32;
}
client.send_tip(&sender, &recipient, &native_asset, &amount);
client.send_tip(&sender, &recipient, &usdc_asset, &amount);
client.create_escrow(&payer, &recipient, &custom_token, &amount, &release_time);