mint fix fee reserve msat

.env.example

@@ -11,14 +11,14 @@ MINT_PORT=3338
 # use builtin tor, this overrides SOCKS_PROXY, HTTP_PROXY
 TOR=TRUE
 
-# use custom proxy, this will only work with TOR=false
-#SOCKS_PROXY=socks5://localhost:9050
-#HTTP_PROXY=http://localhost:8088
+# Use custom proxy, this will only work with TOR=false
+# SOCKS_PROXY=socks5://localhost:9050
+# HTTP_PROXY=http://localhost:8088
 
-# NOSTR
-# nostr private key to which to receive tokens to
+# Nostr
+# Nostr private key to which to receive tokens to
 # NOSTR_PRIVATE_KEY=nostr_privatekey_here_hex_or_bech32_nsec
-# nostr relays (comma separated list)
+# Nostr relays (comma separated list)
 NOSTR_RELAYS=["wss://nostr-pub.wellorder.net"]
 
 # Wallet API port
@@ -34,7 +34,7 @@ MINT_LISTEN_PORT=3338
 MINT_INFO_NAME="My Cashu mint"
 MINT_INFO_DESCRIPTION="The short mint description"
 MINT_INFO_DESCRIPTION_LONG="A long mint description that can be a long piece of text."
-MINT_INFO_CONTACT=[["email","contact@me.com"], ["twitter","@me"], ["nostr",  "npub..."]]
+MINT_INFO_CONTACT=[["email","contact@me.com"],["twitter","@me"],["nostr","npub..."]]
 MINT_INFO_MOTD="Message to users"
 
 MINT_PRIVATE_KEY=supersecretprivatekey
@@ -58,13 +58,13 @@ MINT_LND_REST_MACAROON="/home/lnd/.lnd/data/chain/bitcoin/regtest/admin.macaroon
 
 # CoreLightningRestWallet
 MINT_CORELIGHTNING_REST_URL=https://localhost:3001
-MINT_CORELIGHTNING_REST_MACAROON="./clightning-rest/access.macaroon"
-MINT_CORELIGHTNING_REST_CERT="./clightning-2-rest/certificate.pem"
+MINT_CORELIGHTNING_REST_MACAROON="/home/cln/cln-rest/access.macaroon"
+MINT_CORELIGHTNING_REST_CERT="/home/cln/cln-rest/certificate.pem"
 
-# fee to reserve in percent of the amount
+# Fee to reserve in percent of the amount
 LIGHTNING_FEE_PERCENT=1.0
-# minimum fee to reserve
-LIGHTNING_RESERVE_FEE_MIN=2000
+# minimum Lightning fee to reserve in msat
+LIGHTNING_RESERVE_FEE_MIN_MSAT=2000
 
 # Management
 # max peg-in amount in satoshis

cashu/core/helpers.py

@@ -39,10 +39,10 @@ async def run_and_capture_result():
     return async_response[0]
 
 
-def fee_reserve(amount_msat: int) -> int:
-    """Function for calculating the Lightning fee reserve"""
+def fee_reserve_msat(amount_msat: int) -> int:
+    """Function for calculating the Lightning fee reserve in millisatoshis"""
     return max(
-        int(settings.lightning_reserve_fee_min),
+        int(settings.lightning_reserve_fee_min_msat),
         int(amount_msat * settings.lightning_fee_percent / 100.0),
     )
 

cashu/core/settings.py

@@ -26,7 +26,7 @@ def find_env_file():
 class CashuSettings(BaseSettings):
     env_file: str = Field(default=None)
     lightning_fee_percent: float = Field(default=1.0)
-    lightning_reserve_fee_min: int = Field(default=2000)
+    lightning_reserve_fee_min_msat: int = Field(default=2000)
     max_order: int = Field(default=64)
 
     class Config(BaseSettings.Config):
@@ -55,6 +55,8 @@ class MintSettings(CashuSettings):
     mint_listen_port: int = Field(default=3338)
     mint_lightning_backend: str = Field(default="LNbitsWallet")
     mint_database: str = Field(default="data/mint")
+    mint_cache_secrets: bool = Field(default=True)
+
     mint_peg_out_only: bool = Field(default=False)
     mint_max_peg_in: int = Field(default=None)
     mint_max_peg_out: int = Field(default=None)
@@ -71,7 +73,6 @@ class FakeWalletSettings(MintSettings):
     fakewallet_brr: bool = Field(default=True)
     fakewallet_delay_payment: bool = Field(default=False)
     fakewallet_stochastic_invoice: bool = Field(default=False)
-    mint_cache_secrets: bool = Field(default=True)
 
 
 class MintInformation(CashuSettings):

cashu/lightning/corelightningrest.py

@@ -11,7 +11,7 @@
 from loguru import logger
 
 from ..core.base import Amount, MeltQuote, Unit
-from ..core.helpers import fee_reserve
+from ..core.helpers import fee_reserve_msat
 from ..core.settings import settings
 from .base import (
     InvoiceResponse,
@@ -313,7 +313,7 @@ async def get_payment_quote(self, bolt11: str) -> PaymentQuoteResponse:
         invoice_obj = decode(bolt11)
         assert invoice_obj.amount_msat, "invoice has no amount."
         amount_msat = int(invoice_obj.amount_msat)
-        fees_msat = fee_reserve(amount_msat)
+        fees_msat = fee_reserve_msat(amount_msat)
         fees = Amount(unit=Unit.msat, amount=fees_msat)
         amount = Amount(unit=Unit.msat, amount=amount_msat)
         return PaymentQuoteResponse(

cashu/lightning/fake.py

@@ -15,7 +15,7 @@
 )
 
 from ..core.base import Amount, MeltQuote, Unit
-from ..core.helpers import fee_reserve
+from ..core.helpers import fee_reserve_msat
 from ..core.settings import settings
 from .base import (
     InvoiceResponse,
@@ -139,7 +139,7 @@ async def get_payment_quote(self, bolt11: str) -> PaymentQuoteResponse:
         invoice_obj = decode(bolt11)
         assert invoice_obj.amount_msat, "invoice has no amount."
         amount_msat = int(invoice_obj.amount_msat)
-        fees_msat = fee_reserve(amount_msat)
+        fees_msat = fee_reserve_msat(amount_msat)
         fees = Amount(unit=Unit.msat, amount=fees_msat)
         amount = Amount(unit=Unit.msat, amount=amount_msat)
         return PaymentQuoteResponse(

cashu/lightning/lnbits.py

@@ -7,7 +7,7 @@
 )
 
 from ..core.base import Amount, MeltQuote, Unit
-from ..core.helpers import fee_reserve
+from ..core.helpers import fee_reserve_msat
 from ..core.settings import settings
 from .base import (
     InvoiceResponse,
@@ -158,7 +158,7 @@ async def get_payment_quote(self, bolt11: str) -> PaymentQuoteResponse:
         invoice_obj = decode(bolt11)
         assert invoice_obj.amount_msat, "invoice has no amount."
         amount_msat = int(invoice_obj.amount_msat)
-        fees_msat = fee_reserve(amount_msat)
+        fees_msat = fee_reserve_msat(amount_msat)
         fees = Amount(unit=Unit.msat, amount=fees_msat)
         amount = Amount(unit=Unit.msat, amount=amount_msat)
         return PaymentQuoteResponse(

cashu/lightning/lndrest.py

@@ -11,7 +11,7 @@
 from loguru import logger
 
 from ..core.base import Amount, MeltQuote, Unit
-from ..core.helpers import fee_reserve
+from ..core.helpers import fee_reserve_msat
 from ..core.settings import settings
 from .base import (
     InvoiceResponse,
@@ -58,9 +58,7 @@ def __init__(self):
         self.endpoint = endpoint
         self.macaroon = load_macaroon(macaroon)
 
-        # if no cert provided it should be public so we set verify to True
-        # and it will still check for validity of certificate and fail if its not valid
-        # even on startup
+        # if no cert provided, we expect it to be public so we set verify to True
         self.cert = cert or True
 
         self.auth = {"Grpc-Metadata-macaroon": self.macaroon}
@@ -265,7 +263,7 @@ async def get_payment_quote(self, bolt11: str) -> PaymentQuoteResponse:
         invoice_obj = decode(bolt11)
         assert invoice_obj.amount_msat, "invoice has no amount."
         amount_msat = int(invoice_obj.amount_msat)
-        fees_msat = fee_reserve(amount_msat)
+        fees_msat = fee_reserve_msat(amount_msat)
         fees = Amount(unit=Unit.msat, amount=fees_msat)
         amount = Amount(unit=Unit.msat, amount=amount_msat)
         return PaymentQuoteResponse(

cashu/lightning/strike.py

@@ -17,8 +17,6 @@
 
 
 class StrikeUSDWallet(LightningBackend):
-    """https://github.com/lnbits/lnbits"""
-
     units = [Unit.usd]
 
     def __init__(self):