Changed Port/EnableDB to public on Server; added BasePath

Author: Matthew Borders

README.md

@@ -11,13 +11,24 @@ Mux-based REST API server container with Postgres support
 Documentation here: https://godoc.org/github.com/borderstech/requiem
 
 ## Example Usage
+### Without DB
 ```go
-s := requiem.Server{
-    Port: 8080,
-    Controllers: [ ... IHttpController ],
-    EnableDB: true
-}
+s := requiem.NewServer(... controllers)
+s.Start()
+```
+
+### With DB
+```go
+s := requiem.NewServerWithDB(... controllers)
+s.EnableDB = true
+s.Start()
+```
 
+### Change port or base path
+```go
+s := requiem.NewServerWithDB(... controllers)
+s.Port = 9090
+s.BasePath = "/rest"
 s.Start()
 ```
 

server.go

@@ -7,43 +7,53 @@ import (
 	"github.com/jinzhu/gorm"
 )
 
+const (
+	defaultPort     = 8080
+	defaultBasePath = "/api"
+)
+
 // Server represents a REST API server container
+// Default port is 8080
+// Default path is /api
 type Server struct {
-	port        int
+	Port        int
+	BasePath    string
 	controllers []IHttpController
-	enableDB    bool
+	EnableDB    bool
 }
 
 // Start initializes the API and starts running on the specified port
+// Blocks on current thread
 func (s *Server) Start() {
 	// Create logger
 	InitLogger()
 
 	var db *gorm.DB
-	if s.enableDB {
+	if s.EnableDB {
 		db = newDBConnection()
 		defer db.Close()
 	}
 
 	// Create API router and load controllers
-	r := newRouter("/api", db, s.controllers)
+	r := newRouter(s.BasePath, db, s.controllers)
 	r.printRoutes()
 
 	// Create HTTP server using API router
 	srv := &http.Server{
 		Handler: r.MuxRouter,
-		Addr:    fmt.Sprintf(":%d", s.port),
+		Addr:    fmt.Sprintf(":%d", s.Port),
 	}
 
-	Logger.Info("Starting server on port %d", s.port)
+	Logger.Info("Starting server on port %d", s.Port)
 	Logger.Fatal(srv.ListenAndServe().Error())
 }
 
 // NewServer creates a route-based REST API server instance
-func NewServer(port int, enableDB bool, controllers ...IHttpController) *Server {
+func NewServer(controllers ...IHttpController) *Server {
 	return &Server{
-		port:        port,
-		enableDB:    enableDB,
+		Port:        defaultPort,
+		BasePath:    defaultBasePath,
+		EnableDB:    false,
 		controllers: controllers,
 	}
 }