added: dotenv library for local testing

Author: hansmrtn

.gitignore

@@ -5,6 +5,8 @@
 *.so
 *.dylib
 
+.env
+
 # Test binary, built with `go test -c`
 *.test
 

.sample.env

@@ -0,0 +1,4 @@
+DATABASE_URL=<URL>
+DATABASE_COLLECTION=<COLLECTION>
+DATABASE_NAME=<NAME>
+PORT=<PORT>

go.mod

@@ -7,6 +7,7 @@ require (
 	github.com/go-stack/stack v1.8.0 // indirect
 	github.com/gofiber/fiber/v2 v2.23.0 // indirect
 	github.com/golang/snappy v0.0.3 // indirect
+	github.com/joho/godotenv v1.4.0 // indirect
 	github.com/klauspost/compress v1.13.6 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/valyala/bytebufferpool v1.0.0 // indirect

go.sum

@@ -10,6 +10,8 @@ github.com/golang/snappy v0.0.1/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEW
 github.com/golang/snappy v0.0.3 h1:fHPg5GQYlCeLIPB9BZqMVR5nR9A+IM5zcgeTdjMYmLA=
 github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
 github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/joho/godotenv v1.4.0 h1:3l4+N6zfMWnkbPEXKng2o2/MR5mSwTrBih4ZEkkz1lg=
+github.com/joho/godotenv v1.4.0/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/klauspost/compress v1.13.4 h1:0zhec2I8zGnjWcKyLl6i3gPqKANCCn5e9xmviEEeX6s=
 github.com/klauspost/compress v1.13.4/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
 github.com/klauspost/compress v1.13.6 h1:P76CopJELS0TiO2mebmnzgWaajssP/EszplttgQxcgc=

server.go

@@ -9,6 +9,7 @@ import (
 	"github.com/gofiber/fiber/v2"
 	"github.com/gofiber/fiber/v2/middleware/cors"
 	"github.com/hansmrtn/pay-party-api/models"
+	"github.com/joho/godotenv"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/bson/primitive"
 	"go.mongodb.org/mongo-driver/mongo"
@@ -20,15 +21,24 @@ type MongoInstance struct {
 	DB     *mongo.Database
 }
 
-// Get env variables
-var mongoURI = os.Getenv("DATABASE_URL")
-var dbCollection = os.Getenv("DATABASE_COLLECTION")
-var dbName = os.Getenv("DATABASE_NAME")
-var port = os.Getenv("PORT")
+var mongoURI string
+var dbCollection string
+var dbName string
+var port string
 
 var mg MongoInstance
 
 func init() {
+	err := godotenv.Load(".env")
+	if err != nil {
+		log.Print("Error loading .env file")
+	}
+	// Get env variables
+	mongoURI = os.Getenv("DATABASE_URL")
+	dbCollection = os.Getenv("DATABASE_COLLECTION")
+	dbName = os.Getenv("DATABASE_NAME")
+	port = os.Getenv("PORT")
+
 	client, err := mongo.NewClient(options.Client().ApplyURI(mongoURI))
 	if err != nil {
 		log.Fatal(err)