Refactored echo configuration functions

Signed-off-by: Vishal Rana <vr@labstack.com>

echo.go

@@ -134,23 +134,23 @@ func New() (e *Echo) {
 	// Defaults
 	//----------
 
-	e.MaxParam(5)
+	e.SetMaxParam(5)
 	e.notFoundHandler = func(c *Context) *HTTPError {
 		return &HTTPError{Code: http.StatusNotFound}
 	}
-	e.HTTPErrorHandler(func(he *HTTPError, c *Context) {
+	e.SetHTTPErrorHandler(func(he *HTTPError, c *Context) {
 		if he.Code == 0 {
 			he.Code = http.StatusInternalServerError
 		}
 		if he.Message == "" {
 			he.Message = http.StatusText(he.Code)
+		}
 		if e.debug && he.Error != nil {
 			he.Message = he.Error.Error()
 		}
-		}
 		http.Error(c.Response, he.Message, he.Code)
 	})
-	e.Binder(func(r *http.Request, v interface{}) *HTTPError {
+	e.SetBinder(func(r *http.Request, v interface{}) *HTTPError {
 		ct := r.Header.Get(ContentType)
 		err := UnsupportedMediaType
 		if strings.HasPrefix(ct, ApplicationJSON) {
@@ -178,33 +178,37 @@ func (e *Echo) Group(pfx string, m ...Middleware) *Echo {
 	return &g
 }
 
-// MaxParam sets the maximum number of path parameters allowed for the application.
+// SetMaxParam sets the maximum number of path parameters allowed for the application.
 // Default value is 5, good enough for many use cases.
-func (e *Echo) MaxParam(n uint8) {
+func (e *Echo) SetMaxParam(n uint8) {
 	e.maxParam = n
 }
 
-// HTTPErrorHandler registers an HTTP error handler.
-func (e *Echo) HTTPErrorHandler(h HTTPErrorHandler) {
+// SetHTTPErrorHandler registers an Echo.HTTPErrorHandler.
+func (e *Echo) SetHTTPErrorHandler(h HTTPErrorHandler) {
 	e.httpErrorHandler = h
 }
 
-// Binder registers a custom binder. It's invoked by Context.Bind API.
-func (e *Echo) Binder(b BindFunc) {
+// SetBinder registers a custom binder. It's invoked by Context.Bind().
+func (e *Echo) SetBinder(b BindFunc) {
 	e.binder = b
 }
 
-// Renderer registers an HTML template renderer. It's invoked by Context.Render
-// API.
-func (e *Echo) Renderer(r Renderer) {
+// SetRenderer registers an HTML template renderer. It's invoked by Context.Render().
+func (e *Echo) SetRenderer(r Renderer) {
 	e.renderer = r
 }
 
-// Debug runs the application in debug mode.
-func (e *Echo) Debug(on bool) {
+// SetDebug sets debug mode.
+func (e *Echo) SetDebug(on bool) {
 	e.debug = on
 }
 
+// Debug returns debug mode.
+func (e *Echo) Debug() bool {
+	return e.debug
+}
+
 // Use adds handler to the middleware chain.
 func (e *Echo) Use(m ...Middleware) {
 	for _, h := range m {
@@ -257,6 +261,39 @@ func (e *Echo) Trace(path string, h Handler) {
 	e.add(TRACE, path, h)
 }
 
+func (e *Echo) add(method, path string, h Handler) {
+	key := runtime.FuncForPC(reflect.ValueOf(h).Pointer()).Name()
+	e.uris[key] = path
+	e.Router.Add(method, e.prefix+path, wrapHandler(h), e)
+}
+
+// Index serves index file.
+func (e *Echo) Index(file string) {
+	e.ServeFile("/", file)
+}
+
+// Favicon serves the default favicon - GET /favicon.ico.
+func (e *Echo) Favicon(file string) {
+	e.ServeFile("/favicon.ico", file)
+}
+
+// Static serves static files.
+func (e *Echo) Static(path, root string) {
+	fs := http.StripPrefix(path, http.FileServer(http.Dir(root)))
+	e.Get(path+"*", func(c *Context) *HTTPError {
+		fs.ServeHTTP(c.Response, c.Request)
+		return nil
+	})
+}
+
+// ServeFile serves a file.
+func (e *Echo) ServeFile(path, file string) {
+	e.Get(path, func(c *Context) *HTTPError {
+		http.ServeFile(c.Response, c.Request, file)
+		return nil
+	})
+}
+
 // URI generates a URI from handler.
 func (e *Echo) URI(h Handler, params ...interface{}) string {
 	uri := new(bytes.Buffer)
@@ -284,39 +321,6 @@ func (e *Echo) URL(h Handler, params ...interface{}) string {
 	return e.URI(h, params...)
 }
 
-func (e *Echo) add(method, path string, h Handler) {
-	key := runtime.FuncForPC(reflect.ValueOf(h).Pointer()).Name()
-	e.uris[key] = path
-	e.Router.Add(method, e.prefix+path, wrapHandler(h), e)
-}
-
-// Static serves static files.
-func (e *Echo) Static(path, root string) {
-	fs := http.StripPrefix(path, http.FileServer(http.Dir(root)))
-	e.Get(path+"*", func(c *Context) *HTTPError {
-		fs.ServeHTTP(c.Response, c.Request)
-		return nil
-	})
-}
-
-// ServeFile serves a file.
-func (e *Echo) ServeFile(path, file string) {
-	e.Get(path, func(c *Context) *HTTPError {
-		http.ServeFile(c.Response, c.Request, file)
-		return nil
-	})
-}
-
-// Index serves index file.
-func (e *Echo) Index(file string) {
-	e.ServeFile("/", file)
-}
-
-// Favicon serves the default favicon - GET /favicon.ico.
-func (e *Echo) Favicon(file string) {
-	e.ServeFile("/favicon.ico", file)
-}
-
 func (e *Echo) ServeHTTP(w http.ResponseWriter, r *http.Request) {
 	c := e.pool.Get().(*Context)
 	h, echo := e.Router.Find(r.Method, r.URL.Path, c)

echo_test.go

@@ -22,7 +22,7 @@ var u1 = user{
 // TODO: Improve me!
 func TestEchoMaxParam(t *testing.T) {
 	e := New()
-	e.MaxParam(8)
+	e.SetMaxParam(8)
 	if e.maxParam != 8 {
 		t.Errorf("max param should be 8, found %d", e.maxParam)
 	}

examples/website/server.go

@@ -108,7 +108,7 @@ func main() {
 		// Cached templates
 		templates: template.Must(template.ParseFiles("public/views/welcome.html")),
 	}
-	e.Renderer(t)
+	e.SetRenderer(t)
 	e.Get("/welcome", welcome)
 
 	//-------

website/docs/guide.md

@@ -29,7 +29,7 @@ Specific version of Echo can be installed using any [package manager](https://gi
 
 ### Max path parameters
 
-`echo.MaxParam(n uint8)`
+`Echo.SetMaxParam(n uint8)`
 
 Sets the maximum number of path parameters allowed for the application.
 Default value is **5**, [good enough](https://github.com/interagent/http-api-design#minimize-path-nesting)
@@ -37,16 +37,22 @@ for many use cases. Restricting path parameters allows us to use memory efficien
 
 ### HTTP error handler
 
-`echo.HTTPErrorHandler(h HTTPErrorHandler)`
+`Echo.SetHTTPErrorHandler(h HTTPErrorHandler)`
 
-Registers a custom centralized HTTP error handler `func(*HTTPError, *Context)`.
+Registers a custom `Echo.HTTPErrorHandler`.
 
 Default handler sends `HTTPError.Message` HTTP response with `HTTPError.Code` status
 code.
 
-- If HTTPError.Code is not specified it uses "500 - Internal Server Error".
-- If HTTPError.Message is not specified it uses HTTPError.Error.Error() or the status
-code text.
+- If HTTPError.Code is not set it uses `500`".
+- If HTTPError.Message is not set it uses status code text.
+- If debug mode is enabled, HTTPError.Message is set to `HTTPError.Error.Error()`.
+
+### Debug
+
+`echo.SetDebug(on bool)`
+
+Enables debug mode.
 
 ## Routing