Load configuration

.vscode/launch.json

@@ -11,7 +11,7 @@
 			"mode": "auto",
 			"program": "${fileDirname}",
 			"env": {},
-			"args": []
+			"args": ["config.yaml"]
 		}
 	]
 }

config.go

@@ -1,6 +1,36 @@
 package main
 
-// Value Main value
+import (
-func Name() string {
+	"io/ioutil"
-	return "pierre"
+	"log"
+
+	"gopkg.in/yaml.v2"
+)
+
+// Config stores application configuration
+type Config struct {
+	Secure   bool
+	Hostname string
+	Port     int
+	Path     string
+	Token    string
+}
+
+// Load the configuration
+func loadConfig(path string) Config {
+
+	// Load data
+	dat, err := ioutil.ReadFile(path)
+	if err != nil {
+		log.Fatalf("Could not read configuration: %v", err)
+	}
+
+	// Decode data
+	conf := Config{}
+	err = yaml.UnmarshalStrict(dat, &conf)
+	if err != nil {
+		log.Fatalf("Could not decode configuration: %v", err)
+	}
+
+	return conf
 }

config.yaml

@@ -0,0 +1,9 @@
+# Proxy configuration
+#
+# @author Pierre Hubert
+
+secure: false
+hostname: 127.0.0.1
+port: 3000
+path: /rtc_proxy/ws
+token: SecretToken

go.mod

@@ -1,3 +1,5 @@
 module comunic_rtc_proxy
 
 go 1.14
+
+require gopkg.in/yaml.v2 v2.2.8

go.sum

@@ -0,0 +1,3 @@
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=

main.go

@@ -2,8 +2,21 @@ package main
 
 import (
 	"fmt"
+	"os"
 )
 
 func main() {
-	fmt.Println("secret", Name())
+
+	println("Comunic RTC Proxy. (c) Pierre Hubert 2020")
+
+	// Command line args
+	if len(os.Args) != 2 {
+		fmt.Printf("Usage: %s <config>", os.Args[0])
+	}
+
+	// First, load the config
+	conf := loadConfig(os.Args[1])
+
+	fmt.Println(conf)
+
 }