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feat(config): add BTC_RPC_API_KEY support and update connection handling #133

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Merged
aiden069 merged 1 commit into from
Jan 3, 2026
Merged

feat(config): add BTC_RPC_API_KEY support and update connection handling #133

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4 changes: 3 additions & 1 deletion .env.example
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,8 @@ LIBP2P_BOOT_NODES=
BTC_RPC=http://localhost:8332
BTC_RPC_USER=
BTC_RPC_PASS=
# If BTC_RPC_API_KEY is set and user/pass are empty, dummy basic auth is applied.
BTC_RPC_API_KEY=
BTC_START_HEIGHT=0
BTC_CONFIRMATIONS=6
BTC_NETWORK_TYPE=regtest
Expand Down Expand Up @@ -38,4 +40,4 @@ RELAYER_BLS_SK=
BLS_SIG_TIMEOUT=300s
MIN_DEPOSIT_AMOUNT=1000000

GIN_MODE=release
GIN_MODE=release
29 changes: 25 additions & 4 deletions cmd/app.go
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Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,7 @@ package main

import (
"context"
"net/url"
"os"
"os/signal"
"sync"
Expand Down Expand Up @@ -39,13 +40,33 @@ type Application struct {

func NewApplication() *Application {
config.InitConfig()
// Allow BTC_RPC to be either host:port or full URL so TLS can be inferred.
rpcHost := config.AppConfig.BTCRPC
disableTLS := true
if parsed, err := url.Parse(rpcHost); err == nil && parsed.Host != "" {
rpcHost = parsed.Host
disableTLS = parsed.Scheme != "https"
}
var extraHeaders map[string]string
if config.AppConfig.BTCRPCApiKey != "" {
extraHeaders = map[string]string{
"x-api-key": config.AppConfig.BTCRPCApiKey,
}
}
rpcUser := config.AppConfig.BTCRPC_USER
rpcPass := config.AppConfig.BTCRPC_PASS
if config.AppConfig.BTCRPCApiKey != "" && rpcUser == "" && rpcPass == "" {
rpcUser = "api"
rpcPass = "api"
}
// create bitcoin client using btc module connection
connConfig := &rpcclient.ConnConfig{
Host: config.AppConfig.BTCRPC,
User: config.AppConfig.BTCRPC_USER,
Pass: config.AppConfig.BTCRPC_PASS,
Host: rpcHost,
User: rpcUser,
Pass: rpcPass,
HTTPPostMode: true,
DisableTLS: true,
DisableTLS: disableTLS,
ExtraHeaders: extraHeaders,
}
btcClient, err := rpcclient.New(connConfig, nil)
if err != nil {
Expand Down
3 changes: 3 additions & 0 deletions internal/config/config.go
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Original file line number Diff line number Diff line change
Expand Up @@ -26,6 +26,7 @@ func InitConfig() {
viper.SetDefault("BTC_RPC", "http://localhost:8332")
viper.SetDefault("BTC_RPC_USER", "")
viper.SetDefault("BTC_RPC_PASS", "")
viper.SetDefault("BTC_RPC_API_KEY", "")
viper.SetDefault("BTC_CONFIRMATIONS", 6)
viper.SetDefault("BTC_START_HEIGHT", 0)
viper.SetDefault("BTC_NETWORK_TYPE", "")
Expand Down Expand Up @@ -84,6 +85,7 @@ func InitConfig() {
BTCRPC: viper.GetString("BTC_RPC"),
BTCRPC_USER: viper.GetString("BTC_RPC_USER"),
BTCRPC_PASS: viper.GetString("BTC_RPC_PASS"),
BTCRPCApiKey: viper.GetString("BTC_RPC_API_KEY"),
BTCStartHeight: viper.GetInt("BTC_START_HEIGHT"),
BTCReindexBlocks: viper.GetString("BTC_REINDEX_BLOCKS"),
BTCConfirmations: viper.GetInt("BTC_CONFIRMATIONS"),
Expand Down Expand Up @@ -142,6 +144,7 @@ type Config struct {
BTCRPC string
BTCRPC_USER string
BTCRPC_PASS string
BTCRPCApiKey string
BTCStartHeight int
BTCConfirmations int
BTCNetworkType string
Expand Down
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