SatSale

commit 471c8c03bbc269df1f322f6484b6e7a7364e5b34
parent 7e5783fa53e9773459a58ea6d784b1ad12abedc0
Author: Kristaps Kaupe <kristaps@blogiem.lv>
Date:   Thu, 26 May 2022 15:21:03 +0300

Add configurable multiplier to allow adjusting BTC exchange rate

Diffstat:
M
config.py
 | 
1
+
M
config.toml
 | 
4
++++
M
payments/price_feed.py
 | 
6
+++++-

3 files changed, 10 insertions(+), 1 deletion(-)
diff --git a/config.py b/config.py
@@ -97,6 +97,7 @@ connection_attempts = get_opt("connection_attempts", 3)
 redirect = get_opt("redirect", "https://github.com/nickfarrow/satsale")
 base_currency = get_opt("base_currency", "USD")
 currency_provider = get_opt("currency_provider", "COINGECKO")
+bitcoin_rate_multiplier = get_opt("bitcoin_rate_multiplier", 1.00)
 liquid_address = get_opt("liquid_address", None)
 paynym = get_opt("paynym", None)
 free_mode = get_opt("free_mode", False)
diff --git a/config.toml b/config.toml
@@ -94,6 +94,10 @@ redirect = "https://github.com/nickfarrow/satsale"
 base_currency = "USD"
 currency_provider = "COINGECKO"   # Supported: COINDESK | COINGECKO
 
+# Multiplier added on top of BTC / fiat exchange rate. Allows to give discount or add extra commission.
+# Values above 1.00 gives discount, values below add extra comission.
+bitcoin_rate_multiplier = 1.00
+
 # Weak Hands Mode - Automatically swap LN-BTC -> L-USDT using sideshift.ai
 # https://blockstream.com/liquid/
 # Change lnd_macaroon='admin.macaroon', as you will also need to be able to spend with your lnd certificates.
diff --git a/payments/price_feed.py b/payments/price_feed.py
@@ -22,7 +22,7 @@ def get_currency_provider(currency, currency_provider):
         }
 
 
-def get_price(currency, currency_provider=config.currency_provider):
+def get_price(currency, currency_provider=config.currency_provider, bitcoin_rate_multiplier=config.bitcoin_rate_multiplier):
     provider = get_currency_provider(currency, currency_provider)
     for i in range(config.connection_attempts):
         try:
@@ -42,6 +42,10 @@ def get_price(currency, currency_provider=config.currency_provider):
 
     try:
         price = prices[provider["ticker"]][provider["value_attribute"]]
+        if bitcoin_rate_multiplier != 1.00:
+            logging.debug("Adjusting BTC price from {} to {} because of rate multiplier {}.".format(
+                price, price * bitcoin_rate_multiplier, bitcoin_rate_multiplier))
+            price = price * bitcoin_rate_multiplier
         return price
 
     except Exception: