Contract con_testtokenfee


Contract Code

1 balances = Hash(default_value=0)
2
3 metadata = Hash()
4
5 @construct
6 def seed():
7 balances[ctx.caller] = 99
8 balances["ff61544ea94eaaeb5df08ed863c4a938e9129aba6ceee5f31b6681bdede11b89"] = 1
9
10 metadata["token_name"] = "TestTokenFee"
11 metadata["token_symbol"] = "TTF"
12 metadata["token_logo_base64_png"] = ""
13 metadata["operator"] = "ff61544ea94eaaeb5df08ed863c4a938e9129aba6ceee5f31b6681bdede11b89"
14
15 @export
16 def change_metadata(key: str, value: Any):
17 assert ctx.caller == metadata["operator"], "Only operator can set metadata!"
18 metadata[key] = value
19
20 @export
21 def transfer(amount: float, to: str):
22 assert amount > 0, "Cannot send negative balances!"
23 assert balances[ctx.caller] >= amount, "Not enough coins to send!"
24
25 balances[ctx.caller] -= amount
26 balances[to] += amount
27
28 @export
29 def approve(amount: float, to: str):
30 assert amount > 0, "Cannot send negative balances!"
31 balances[ctx.caller, to] += amount
32
33 @export
34 def transfer_from(amount: float, to: str, main_account: str):
35 assert amount > 0, "Cannot send negative balances!"
36 assert balances[main_account, ctx.caller] >= amount, "Not enough coins approved to send! You have {} and are trying to spend {}".format(balances[main_account, ctx.caller], amount)
37 assert balances[main_account] >= amount, "Not enough coins to send!"
38
39 balances[main_account, ctx.caller] -= amount
40 balances[main_account] -= amount
41 balances[to] += amount
42
43 @export
44 def mint(amount: float):
45 assert ctx.caller == metadata["operator"], "Only operator can mint!"
46 assert amount > 0, "Cannot mint negative amount!"
47 balances[ctx.caller] += amount
48

Byte Code

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