feat!: run checks on env variables

env/checks.go

@@ -0,0 +1,16 @@
+package env
+
+import (
+	"fmt"
+	"os"
+)
+
+func RunChecks() {
+	checkEnv("APP_URL")
+}
+
+func checkEnv(key string) {
+	if os.Getenv(key) == "" {
+		panic(fmt.Sprintf("Environment variable %s is not set", key))
+	}
+}

main.go

@@ -1,6 +1,7 @@
 package main
 
 import (
+	"anonymousoverflow/env"
 	"anonymousoverflow/src/middleware"
 	"anonymousoverflow/src/routes"
 	"fmt"
@@ -11,6 +12,8 @@ import (
 
 func main() {
 
+	env.RunChecks()
+
 	host := os.Getenv("HOST")
 	if host == "" {
 		host = "0.0.0.0"