added in config loading from file then ENV

Taskfile.yml

@@ -67,7 +67,7 @@ tasks:
 
   run-backend:
     env:
-      PORT: 3500
+      SERVER_PORT: 3500
       TZ: "America/New_York"
     sources:
       - ./*.go

config.go

@@ -0,0 +1,30 @@
+package main
+
+import (
+	"fmt"
+
+	"github.com/kkyr/fig"
+)
+
+type Config struct {
+	Timezone string `fig:"tz" default:"America/New_York"`
+	Server   struct {
+		Port string `fig:"port" default:"3000"`
+	}
+	Logger struct {
+		Level string `fig:"level" default:"error"`
+	}
+}
+
+func LoadConfig(server *Server) error {
+	var cfg Config
+	err := fig.Load(&cfg, fig.File("config.yaml"), fig.Dirs("./config"), fig.UseEnv(""))
+	if err != nil {
+		return err
+	}
+	fmt.Println("Configuration loaded successfully...")
+	fmt.Println("PORT: ", cfg.Server.Port)
+	fmt.Println("TZ: ", cfg.Timezone)
+	server.Config = &cfg
+	return nil
+}

go.mod

@@ -3,9 +3,14 @@ module gitea.derajnet.duckdns.org/changeme
 go 1.16
 
 require (
+	github.com/BurntSushi/toml v0.4.1 // indirect
 	github.com/andybalholm/brotli v1.0.3 // indirect
 	github.com/gofiber/fiber/v2 v2.15.0
+	github.com/ilyakaznacheev/cleanenv v1.2.5 // indirect
+	github.com/kkyr/fig v0.3.0 // indirect
 	github.com/klauspost/compress v1.13.1 // indirect
 	github.com/valyala/fasthttp v1.28.0 // indirect
 	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3 // indirect
 )

go.sum

@@ -1,12 +1,25 @@
+github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
+github.com/BurntSushi/toml v0.4.1 h1:GaI7EiDXDRfa8VshkTj7Fym7ha+y8/XxIgD2okUIjLw=
+github.com/BurntSushi/toml v0.4.1/go.mod h1:CxXYINrC8qIiEnFrOxCa7Jy5BFHlXnUU2pbicEuybxQ=
 github.com/andybalholm/brotli v1.0.2/go.mod h1:loMXtMfwqflxFJPmdbJO0a3KNoPuLBgiu3qAvBg8x/Y=
 github.com/andybalholm/brotli v1.0.3 h1:fpcw+r1N1h0Poc1F/pHbW40cUm/lMEQslZtCkBQ0UnM=
 github.com/andybalholm/brotli v1.0.3/go.mod h1:fO7iG3H7G2nSZ7m0zPUDn85XEX2GTukHGRSepvi9Eig=
 github.com/gofiber/fiber/v2 v2.15.0 h1:yd+o1t6/hjkmjZxz4FJlgHAKBIu1w1PnRL3VB67KMHM=
 github.com/gofiber/fiber/v2 v2.15.0/go.mod h1:iftruuHGkRYGEXVISmdD7HTYWyfS2Bh+Dkfq4n/1Owg=
 github.com/golang/snappy v0.0.3/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/ilyakaznacheev/cleanenv v1.2.5 h1:/SlcF9GaIvefWqFJzsccGG/NJdoaAwb7Mm7ImzhO3DM=
+github.com/ilyakaznacheev/cleanenv v1.2.5/go.mod h1:/i3yhzwZ3s7hacNERGFwvlhwXMDcaqwIzmayEhbRplk=
+github.com/joho/godotenv v1.3.0 h1:Zjp+RcGpHhGlrMbJzXTrZZPrWj+1vfm90La1wgB6Bhc=
+github.com/joho/godotenv v1.3.0/go.mod h1:7hK45KPybAkOC6peb+G5yklZfMxEjkZhHbwpqxOKXbg=
+github.com/kkyr/fig v0.3.0 h1:5bd1amYKp/gsK2bGEUJYzcCrQPKOZp6HZD9K21v9Guo=
+github.com/kkyr/fig v0.3.0/go.mod h1:fEnrLjwg/iwSr8ksJF4DxrDmCUir5CaVMLORGYMcz30=
 github.com/klauspost/compress v1.12.2/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
 github.com/klauspost/compress v1.13.1 h1:wXr2uRxZTJXHLly6qhJabee5JqIhTRoLBhDOA74hDEQ=
 github.com/klauspost/compress v1.13.1/go.mod h1:8dP1Hq4DHOhN9w426knH3Rhby4rFm6D8eO+e+Dq5Gzg=
+github.com/mitchellh/mapstructure v1.4.1 h1:CpVNEelQCZBooIPDn+AR3NpivK/TIKU8bDxdASFVQag=
+github.com/mitchellh/mapstructure v1.4.1/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
+github.com/pelletier/go-toml v1.9.3 h1:zeC5b1GviRUyKYd6OJPvBU/mcVDVoL1OhT17FCt5dSQ=
+github.com/pelletier/go-toml v1.9.3/go.mod h1:u1nR/EPcESfeI/szUZKdtJ0xRNbUoANCkoOuaOx1Y+c=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
 github.com/valyala/fasthttp v1.26.0/go.mod h1:cmWIqlu99AO/RKcp1HWaViTqc57FswJOfYYdPJBl8BA=
@@ -26,3 +39,10 @@ golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9sn
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
+gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
+olympos.io/encoding/edn v0.0.0-20200308123125-93e3b8dd0e24/go.mod h1:oVgVk4OWVDi43qWBEyGhXgYxt7+ED4iYNpTngSLX2Iw=
+olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3 h1:slmdOY3vp8a7KQbHkL+FLbvbkgMqmXojpFUO/jENuqQ=
+olympos.io/encoding/edn v0.0.0-20201019073823-d3554ca0b0a3/go.mod h1:oVgVk4OWVDi43qWBEyGhXgYxt7+ED4iYNpTngSLX2Iw=

main.go

@@ -2,12 +2,22 @@ package main
 
 import (
 	"fmt"
-	"os"
+	"log"
 
 	"github.com/gofiber/fiber/v2"
 )
 
+type Server struct {
+	Config *Config
+}
+
 func main() {
+	server := Server{}
+	err := LoadConfig(&server)
+	if err != nil {
+		log.Fatal("Unable to load in config file: ", err)
+	}
+	fmt.Println("Server: ", server.Config)
 	app := fiber.New()
 
 	app.Get("/", func(c *fiber.Ctx) error {
@@ -15,5 +25,5 @@ func main() {
 	})
 	// fmt.Println("Port listen on: ", os.Getenv("PORT"))
 	// fmt.Println("Timezone is: ", os.Getenv("TZ"))
-	app.Listen(fmt.Sprintf(":%s", os.Getenv("PORT")))
+	app.Listen(fmt.Sprintf(":%s", server.Config.Server.Port))
 }