Add config

config/config.go

@@ -0,0 +1,32 @@
+package config
+
+import (
+	"encoding/json"
+	"os"
+)
+
+// Config contains all needed configurations
+type Config struct {
+	DatabaseUser     string
+	DatabaseHost     string
+	DatabasePassword string
+	DatabaseName     string
+	file             *os.File
+}
+
+// LoadConfig from path
+func LoadConfig(path string) (*Config, error) {
+	file, err := os.Open(path)
+	if err != nil {
+		return nil, err
+	}
+
+	decoder := json.NewDecoder(file)
+	configuration := Config{}
+	err = decoder.Decode(&configuration)
+	if err != nil {
+		return nil, err
+	}
+
+	return &configuration, nil
+}