api/server: use constants for http methods

Signed-off-by: Sebastiaan van Stijn <github@gone.nl>

api/server/httputils/form_test.go

@@ -23,7 +23,7 @@ func TestBoolValue(t *testing.T) {
 	for c, e := range cases {
 		v := url.Values{}
 		v.Set("test", c)
-		r, _ := http.NewRequest("POST", "", nil)
+		r, _ := http.NewRequest(http.MethodPost, "", nil)
 		r.Form = v
 
 		a := BoolValue(r, "test")
@@ -34,14 +34,14 @@ func TestBoolValue(t *testing.T) {
 }
 
 func TestBoolValueOrDefault(t *testing.T) {
-	r, _ := http.NewRequest("GET", "", nil)
+	r, _ := http.NewRequest(http.MethodGet, "", nil)
 	if !BoolValueOrDefault(r, "queryparam", true) {
 		t.Fatal("Expected to get true default value, got false")
 	}
 
 	v := url.Values{}
 	v.Set("param", "")
-	r, _ = http.NewRequest("GET", "", nil)
+	r, _ = http.NewRequest(http.MethodGet, "", nil)
 	r.Form = v
 	if BoolValueOrDefault(r, "param", true) {
 		t.Fatal("Expected not to get true")
@@ -59,7 +59,7 @@ func TestInt64ValueOrZero(t *testing.T) {
 	for c, e := range cases {
 		v := url.Values{}
 		v.Set("test", c)
-		r, _ := http.NewRequest("POST", "", nil)
+		r, _ := http.NewRequest(http.MethodPost, "", nil)
 		r.Form = v
 
 		a := Int64ValueOrZero(r, "test")
@@ -79,7 +79,7 @@ func TestInt64ValueOrDefault(t *testing.T) {
 	for c, e := range cases {
 		v := url.Values{}
 		v.Set("test", c)
-		r, _ := http.NewRequest("POST", "", nil)
+		r, _ := http.NewRequest(http.MethodPost, "", nil)
 		r.Form = v
 
 		a, err := Int64ValueOrDefault(r, "test", -1)
@@ -95,7 +95,7 @@ func TestInt64ValueOrDefault(t *testing.T) {
 func TestInt64ValueOrDefaultWithError(t *testing.T) {
 	v := url.Values{}
 	v.Set("test", "invalid")
-	r, _ := http.NewRequest("POST", "", nil)
+	r, _ := http.NewRequest(http.MethodPost, "", nil)
 	r.Form = v
 
 	_, err := Int64ValueOrDefault(r, "test", -1)

api/server/middleware/debug.go

@@ -18,7 +18,7 @@ func DebugRequestMiddleware(handler func(ctx context.Context, w http.ResponseWri
 	return func(ctx context.Context, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
 		logrus.Debugf("Calling %s %s", r.Method, r.RequestURI)
 
-		if r.Method != "POST" {
+		if r.Method != http.MethodPost {
 			return handler(ctx, w, r, vars)
 		}
 		if err := httputils.CheckForJSON(r); err != nil {

api/server/middleware/version_test.go

@@ -25,7 +25,7 @@ func TestVersionMiddlewareVersion(t *testing.T) {
 	m := NewVersionMiddleware(defaultVersion, defaultVersion, minVersion)
 	h := m.WrapHandler(handler)
 
-	req, _ := http.NewRequest("GET", "/containers/json", nil)
+	req, _ := http.NewRequest(http.MethodGet, "/containers/json", nil)
 	resp := httptest.NewRecorder()
 	ctx := context.Background()
 
@@ -76,7 +76,7 @@ func TestVersionMiddlewareWithErrorsReturnsHeaders(t *testing.T) {
 	m := NewVersionMiddleware(defaultVersion, defaultVersion, minVersion)
 	h := m.WrapHandler(handler)
 
-	req, _ := http.NewRequest("GET", "/containers/json", nil)
+	req, _ := http.NewRequest(http.MethodGet, "/containers/json", nil)
 	resp := httptest.NewRecorder()
 	ctx := context.Background()
 

api/server/server_test.go

@@ -22,7 +22,7 @@ func TestMiddlewares(t *testing.T) {
 
 	srv.UseMiddleware(middleware.NewVersionMiddleware("0.1omega2", api.DefaultVersion, api.MinVersion))
 
-	req, _ := http.NewRequest("GET", "/containers/json", nil)
+	req, _ := http.NewRequest(http.MethodGet, "/containers/json", nil)
 	resp := httptest.NewRecorder()
 	ctx := context.Background()