add global config for env variables

.env

@@ -0,0 +1,2 @@
+NEO4J_USERNAME=neo4j
+NEO4J_PASS=letmein

cli/command/repository/consts.go

@@ -1,6 +1,8 @@
 package repository
 
-import "time"
+import (
+	"time"
+)
 
 const (
 	BtcNetwork  = 1
@@ -14,7 +16,7 @@ const (
 
 var (
 	Neo4jUri         = getEnv("NEO4J_URI", "neo4j://localhost:7687")
-	Neo4jUser        = getEnv("NEO4J_USER", "neo4j")
+	Neo4jUser        = getEnv("NEO4J_USERNAME", "neo4j")
 	Neo4jPass        = getEnv("NEO4J_PASS", "letmein")
 	exchange         = []string{"uniswap", "bitfinex"}
 	SatoshiToBitcoin = float64(100000000)

cmd/wallet-tracker/main.go

@@ -1,6 +1,8 @@
 package main
 
 import (
+	"github.com/joho/godotenv"
+	"log"
 	"os"
 
 	"github.com/spf13/cobra"
@@ -11,6 +13,11 @@ import (
 var rootCmd *cobra.Command
 
 func main() {
+	err := godotenv.Load()
+	if err != nil {
+		log.Fatalf("Error loading .env file")
+	}
+
 	rootCmd = commands.NewWalletTrackerCommand()
 	if err := rootCmd.Execute(); err != nil {
 		os.Exit(1)

docker-compose.yml

@@ -11,7 +11,7 @@ services:
     volumes:
       - ./neo4j/data:/data
     environment:
-      - NEO4J_AUTH=neo4j/letmein
+      - NEO4J_AUTH=${NEO4J_USERNAME}/${NEO4J_PASS}
       - NEO4JLABS_PLUGINS=["apoc", "graph-data-science"]
       - NEO4J_dbms_security_procedures_unrestricted=apoc.*,gds.*
       - NEO4J_dbms_memory_heap_initial__size=4G

go.mod

@@ -37,6 +37,7 @@ require (
 	github.com/imdario/mergo v0.3.12 // indirect
 	github.com/inconshreveable/mousetrap v1.0.0 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/k0kubun/colorstring v0.0.0-20150214042306-9440f1994b88 // indirect
 	github.com/kevinburke/ssh_config v0.0.0-20201106050909-4977a11b4351 // indirect
 	github.com/leodido/go-urn v1.2.1 // indirect

go.sum

@@ -308,6 +308,8 @@ github.com/inconshreveable/mousetrap v1.0.0/go.mod h1:PxqpIevigyE2G7u3NXJIT2ANyt
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 h1:BQSFePA1RWJOlocH6Fxy8MmwDt+yVQYULKfN0RoTN8A=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
 github.com/jessevdk/go-flags v1.5.0/go.mod h1:Fw0T6WPc1dYxT4mKEZRfG5kJhaTDP9pj1c2EWnYs/m4=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/jpillora/backoff v1.0.0/go.mod h1:J/6gKK9jxlEcS3zixgDgUAsiuZ7yrSoa/FX5e0EB2j4=
 github.com/json-iterator/go v1.1.6/go.mod h1:+SdeFBvtyEkXs7REEP0seUULqWtbJapLOCVDaaPEHmU=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=