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swapping1_less_convenience.py
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# This sample is provided for demonstration purposes only.
# It is not intended for production use.
# This example does not constitute trading advice.
# This example has exactly the same functionality as swapping1.py but is purposely more verbose, using less convenience functions.
# It is intended to give an understanding of what happens under those convenience functions.
from tinyman.v1.pools import Pool
from tinyman.assets import Asset
from tinyman.compat import wait_for_confirmation
from algosdk.v2client.algod import AlgodClient
from tinyman.v1.client import TinymanClient
# Hardcoding account keys is not a great practice. This is for demonstration purposes only.
# See the README & Docs for alternative signing methods.
account = {
"address": "ALGORAND_ADDRESS_HERE",
"private_key": "base64_private_key_here", # Use algosdk.mnemonic.to_private_key(mnemonic) if necessary
}
algod = AlgodClient(
"<TOKEN>", "http://localhost:8080", headers={"User-Agent": "algosdk"}
)
client = TinymanClient(
algod_client=algod,
validator_app_id=21580889,
)
# Check if the account is opted into Tinyman and optin if necessary
if not client.is_opted_in(account["address"]):
print("Account not opted into app, opting in now..")
transaction_group = client.prepare_app_optin_transactions(account["address"])
for i, txn in enumerate(transaction_group.transactions):
if txn.sender == account["address"]:
transaction_group.signed_transactions[i] = txn.sign(account["private_key"])
txid = client.algod.send_transactions(transaction_group.signed_transactions)
wait_for_confirmation(algod, txid)
# Fetch our two assets of interest
TINYUSDC = Asset(id=21582668, name="TinyUSDC", unit_name="TINYUSDC", decimals=6)
ALGO = Asset(id=0, name="Algo", unit_name="ALGO", decimals=6)
# Create the pool we will work with and fetch its on-chain state
pool = Pool(client, asset_a=TINYUSDC, asset_b=ALGO, fetch=True)
# Get a quote for a swap of 1 ALGO to TINYUSDC with 1% slippage tolerance
quote = pool.fetch_fixed_input_swap_quote(ALGO(1_000_000), slippage=0.01)
print(quote)
print(f"TINYUSDC per ALGO: {quote.price}")
print(f"TINYUSDC per ALGO (worst case): {quote.price_with_slippage}")
# We only want to sell if ALGO is > 180 TINYUSDC (It's testnet!)
if quote.price_with_slippage > 180:
print(f"Swapping {quote.amount_in} to {quote.amount_out_with_slippage}")
# Prepare a transaction group
transaction_group = pool.prepare_swap_transactions(
amount_in=quote.amount_in,
amount_out=quote.amount_out_with_slippage,
swap_type="fixed-input",
swapper_address=account["address"],
)
# Sign the group with our key
for i, txn in enumerate(transaction_group.transactions):
if txn.sender == account["address"]:
transaction_group.signed_transactions[i] = txn.sign(account["private_key"])
txid = algod.send_transactions(transaction_group.signed_transactions)
wait_for_confirmation(algod, txid)
# Check if any excess remaining after the swap
excess = pool.fetch_excess_amounts(account["address"])
if TINYUSDC.id in excess:
amount = excess[TINYUSDC.id]
print(f"Excess: {amount}")
# We might just let the excess accumulate rather than redeeming if its < 1 TinyUSDC
if amount > 1_000_000:
transaction_group = pool.prepare_redeem_transactions(
amount, account["address"]
)
# Sign the group with our key
for i, txn in enumerate(transaction_group.transactions):
if txn.sender == account["address"]:
transaction_group.signed_transactions[i] = txn.sign(
account["private_key"]
)
txid = algod.send_transactions(transaction_group.signed_transactions)
wait_for_confirmation(algod, txid)