env file added

Author: vinodnextcoder

gin-web-app/.env.dev

@@ -0,0 +1,3 @@
+S3_BUCKET=YOURS3BUCKET
+SECRET_KEY=YOURSECRETKEYGOESHERE
+PORT=3001

gin-web-app/go.mod

@@ -1,6 +1,8 @@
 module github.com/vinodnextcoder/go-web-app
 
-go 1.20
+go 1.21
+
+toolchain go1.21.5
 
 require (
 	github.com/KyleBanks/depth v1.2.1 // indirect
@@ -20,6 +22,7 @@ require (
 	github.com/go-playground/universal-translator v0.18.1 // indirect
 	github.com/go-playground/validator/v10 v10.17.0 // indirect
 	github.com/goccy/go-json v0.10.2 // indirect
+	github.com/joho/godotenv v1.5.1 // indirect
 	github.com/josharian/intern v1.0.0 // indirect
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/klauspost/cpuid/v2 v2.2.6 // indirect

gin-web-app/go.sum

@@ -42,6 +42,8 @@ github.com/goccy/go-json v0.10.2/go.mod h1:6MelG93GURQebXPDq3khkgXZkazVtN9CRI+MG
 github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
 github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/gofuzz v1.0.0/go.mod h1:dBl0BpW6vV/+mYPU4Po3pmUjxk6FQPldtuIdl/M65Eg=
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=
 github.com/josharian/intern v1.0.0 h1:vlS4z54oSdjm0bgjRigI+G1HpF+tI+9rE5LLzOg8HmY=
 github.com/josharian/intern v1.0.0/go.mod h1:5DoeVV0s6jJacbCEi61lwdGj/aVlrQvzHFFd8Hwg//Y=
 github.com/json-iterator/go v1.1.12 h1:PV8peI4a0ysnczrg+LtxykD8LfKY9ML6u2jnxaEnrnM=

gin-web-app/main.go

@@ -1,8 +1,12 @@
 package main
 
 import (
+	"fmt"
+	"log"
 	"net/http"
+	"os"
 
+    "github.com/joho/godotenv"
 	"github.com/gin-gonic/gin"
 	swaggerFiles "github.com/swaggo/files"
 	ginSwagger "github.com/swaggo/gin-swagger"
@@ -24,6 +28,14 @@ import (
 // @externalDocs.url          https://swagger.io/resources/open-api/
 func main() {
 
+	err := godotenv.Load(".env.dev")
+	
+  if err != nil {
+    log.Fatal("Error loading .env file")
+  }
+
+  port := os.Getenv("PORT")
+
 	router := gin.Default()
 
 	router.GET("/", helloCall)
@@ -35,7 +47,7 @@ func main() {
 	router.GET("/userData/:id", getUserByID)
 	router.GET("/swagger/*any", ginSwagger.WrapHandler(swaggerFiles.Handler))
 
-	router.Run(":3001")
+	router.Run("0.0.0.0:"+port)
 }
 
 type userDetail struct {