Contract con_tip_contract


Contract Code

1 # LST001
2 balances = Hash(default_value=0)
3 # LST002
4 metadata = Hash()
5 @construct
6 def seed():
7 # LST001 - MINT SUPPLY to wallet that submits the contract
8 balances[ctx.caller] = 1_000_000_000_000
9 # LST002
10 metadata['token_name'] = "TIP BOX"
11 metadata['token_symbol'] = "TIP"
12 metadata['operator'] = ctx.caller
13 # LST002
14 @export
15 def change_metadata(key: str, value: Any):
16 assert ctx.caller == metadata['operator'], 'Only operator can set metadata!'
17 metadata[key] = value
18 # LST001
19 @export
20 def transfer(amount: float, to: str):
21 assert amount > 0, 'Cannot send negative balances!'
22 assert balances[ctx.caller] >= amount, 'Not enough coins to send!'
23 balances[ctx.caller] -= amount
24 balances[to] += amount
25 # LST001
26 @export
27 def approve(amount: float, to: str):
28 assert amount > 0, 'Cannot send negative balances!'
29 balances[ctx.caller, to] += amount
30 # LST001
31 @export
32 def transfer_from(amount: float, to: str, main_account: str):
33 assert amount > 0, 'Cannot send negative balances!'
34 assert balances[main_account, ctx.caller] >= amount, 'Not enough coins approved to send! You have {} and are trying to spend {}'\
35 .format(balances[main_account, ctx.caller], amount)
36 assert balances[main_account] >= amount, 'Not enough coins to send!'
37 balances[main_account, ctx.caller] -= amount
38 balances[main_account] -= amount
39 balances[to] += amount

Byte Code

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