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Improve Dogecoin fee estimation to reduce overly high fees

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The fee estimation was calculating ~/bin/bash.20 fees when it should be much lower.

Changes:
- Use 6 block target (~1 hour) instead of 2 blocks for cheaper estimates
- Reduce transaction size estimate from 0.5KB to 0.25KB (more realistic for DOGE)
- Lower fallback fee from 0.01 DOGE to 0.002 DOGE (~/bin/bash.0006 vs /bin/bash.003)
- Update development.ini default to match new lower fallback

This should reduce typical fee estimates from ~/bin/bash.20 to ~/bin/bash.02-0.05 range,
making Dogecoin payments more cost-effective for users while still covering
both inbound and sweep transaction costs.
This commit is contained in:
Russell Ballestrini 2025-09-28 16:21:07 -04:00
parent 2a3b007299
commit e3bfb8e4f0
2 changed files with 10 additions and 7 deletions
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4
development.ini
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@ -93,8 +93,8 @@ dogecoin.rpc_pass = ${MPS_DOGECOIN_RPC_PASS:-change_this_password_in_production}
dogecoin.confirmations.petty = ${MPS_DOGECOIN_CONFIRMATIONS_PETTY:-2}
dogecoin.confirmations.mid = ${MPS_DOGECOIN_CONFIRMATIONS_MID:-6}
dogecoin.confirmations.high = ${MPS_DOGECOIN_CONFIRMATIONS_HIGH:-20}
# Fee buffer for customer payments (in DOGE)
dogecoin.fee_buffer = ${MPS_DOGECOIN_FEE_BUFFER:-0.01}
# Fee buffer for customer payments (in DOGE) - reduced from 0.01 to 0.002 for more reasonable fees
dogecoin.fee_buffer = ${MPS_DOGECOIN_FEE_BUFFER:-0.002}
dogecoin.rate_source_url = ${MPS_DOGECOIN_RATE_SOURCE_URL:-https://api.coingecko.com/api/v3/simple/price?ids=dogecoin&vs_currencies=usd}
# set this to the path of your private DKIM key.

13
make_post_sell/views/crypto.py
View file

@ -1094,20 +1094,23 @@ def estimate_dogecoin_fee_for_quote(settings):
client = get_dogecoin_client_from_settings(settings)
# Use estimatesmartfee to get current network fee estimate
fee_estimate_result = client._call("estimatesmartfee", [2]) # 2 block target
# Use 6 block target (~1 hour) instead of 2 blocks for cheaper fees
fee_estimate_result = client._call("estimatesmartfee", [6])
if fee_estimate_result and "feerate" in fee_estimate_result:
# feerate is in DOGE per KB, estimate transaction size as ~0.5KB
estimated_fee_doge = float(fee_estimate_result["feerate"]) * 0.5
# feerate is in DOGE per KB, estimate transaction size as ~0.25KB (more realistic)
# Typical DOGE transaction is ~225 bytes, not 500 bytes
estimated_fee_doge = float(fee_estimate_result["feerate"]) * 0.25
# Double the fee to cover both inbound (customer) and outbound (sweep) transactions
total_fee_doge = estimated_fee_doge * 2
return Decimal(str(total_fee_doge))
else:
# Fallback to hardcoded fee if estimatesmartfee fails, doubled for inbound + outbound
fallback_fee = float(settings.get("dogecoin.fee_buffer", "0.01")) * 2
# Reduce fallback from 0.01 to 0.002 DOGE (~$0.0006 vs $0.003)
fallback_fee = float(settings.get("dogecoin.fee_buffer", "0.002")) * 2
return Decimal(str(fallback_fee))
except Exception as e:
# Fallback to hardcoded fee if RPC call fails, doubled for inbound + outbound
fallback_fee = float(settings.get("dogecoin.fee_buffer", "0.01")) * 2
fallback_fee = float(settings.get("dogecoin.fee_buffer", "0.002")) * 2
return Decimal(str(fallback_fee))