🪙 Coin to Fungible Asset Migration on Supra Chain

This repository implements the full migration flow from a legacy Coin-based token (Haven Coin - HVC) to the modern FungibleAsset standard using the Supra Move Framework.

---

📦 Modules

1. haven_coin

• Manages the legacy Haven Coin (HVC)
• Includes minting, transfer, airdrop, and user registration

2. migration

• Handles the migration of HVC into a FungibleAsset
• Supports viewing FA balances and metadata object addresses

---

🚀 Getting Started

🔧 Setup Supra Profile

supra profile new \
  --rpc-url "https://rpc-testnet-1262.supra.com/" \
  --faucet-url "https://rpc-testnet-1262.supra.com/"

💰 Fund Your Account

supra move account fund-with-faucet

📤 Publish the Contract

supra move tool publish

Get the module address from the output, and assign it:

module=YOUR_MODULE_ADDRESS

🧵 CLI Usage Examples

🔍 View Legacy Balance

supra move tool view \
  --function-id "0x1::coin::balance" \
  --type-args "$module::haven_coin::HVC" \
  --args address:<your-address>

🔁 Migrate Coin to Fungible Asset

supra move tool run \
  --function-id "0x1::coin::migrate_to_fungible_store" \
  --type-args "$module::haven_coin::HVC"

📊 View Balances

Legacy Coin Balance:

supra move tool view \
  --function-id "$module::haven_coin::get_balance" \
  --args address:<user-address>

Fungible Asset Balance (after migration):

supra move tool view \
  --function-id "$module::migration::fa_balance" \
  --type-args "$module::haven_coin::HVC" \
  --args address:<user-address>

🔁 Migrate Coins

Legacy Coin → FA:

supra move tool run \
  --function-id "$module::migration::coin_address_to_fa" \
  --type-args "$module::haven_coin::HVC" \
  --args address:<user-address> u64:<amount>

FA → Legacy Coin:

supra move tool run \
  --function-id "$module::migration::fa_address_to_coin3" \
  --type-args "$module::haven_coin::HVC" \
  --args address:<user-address> u64:<amount>

🎁 Airdrop

supra move tool run \
  --function-id "$module::haven_coin::airdrop_coin" \
  --args address:<receiver-address> u64:100

🧠 Conceptual Flow

[Legacy Coin (HVC)]
│
├── mint / airdrop / transfer
│
▼
[Migration Module]
├── Convert Coin → FungibleAsset
├── Deposit into FA Store
└── View FA balance

✨ Credits

Built using the Supra Move Framework.
Developer: Meet Rathod