Use godotenv to load env vars (#50)

* Use godotenv to load env vars

* Add godotenv to automatically load env vars

---------

Co-authored-by: Willard Nilges <[email protected]>

Author: WillNilges

site/go.mod

@@ -7,6 +7,8 @@ require (
 	github.com/gin-gonic/gin v1.7.7
 )
 
+require github.com/joho/godotenv v1.5.1 // indirect
+
 require (
 	github.com/gin-contrib/sse v0.1.0 // indirect
 	github.com/go-playground/locales v0.14.0 // indirect

site/go.sum

@@ -30,6 +30,8 @@ github.com/google/go-cmp v0.5.7/go.mod h1:n+brtR0CgQNWTVd5ZUFpTBC8YFBDLK/h/bpaJ8
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
 github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0Ufc=
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/json-iterator/go v1.1.9/go.mod h1:KdQUCv79m/52Kvf8AW2vK1V8akMuk1QjK/uOdHXbAo4=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=
 github.com/json-iterator/go v1.1.12/go.mod h1:e30LSqwooZae/UwlEbR2852Gd8hjQvJoHmT4TnhNGBo=

site/main.go

@@ -6,10 +6,17 @@ import (
 	"strconv"
 
 	"github.com/gin-gonic/gin"
+	"github.com/joho/godotenv"
 )
 
 func main() {
-	// Get environment variables
+	// Load environment variables, one way or another
+	err := godotenv.Load()
+	if err != nil {
+		fmt.Println("Couldn't load .env file! Please ensure that you have a .env in this directory. Check main.go for expected variables.")
+		return
+	}
+
 	var broker, brokerMissing = os.LookupEnv("LMI_BROKER")
 	var port, portMissing = os.LookupEnv("LMI_BROKER_PORT")
 	var portNumber = 1883 // Set a reasonable default.