beego.Context.Abort return immediately

* add common 4XX/5XX HTTP exceptions

middleware/exceptions.go

@@ -0,0 +1,32 @@
+package middleware
+
+import "fmt"
+
+type HTTPException struct {
+	StatusCode  int // http status code 4xx, 5xx
+	Description string
+}
+
+func (e *HTTPException) Error() string {
+	// return `status description`, e.g. `400 Bad Request`
+	return fmt.Sprintf("%d %s", e.StatusCode, e.Description)
+}
+
+var HTTPExceptionMaps map[int]HTTPException
+
+func init() {
+	HTTPExceptionMaps = make(map[int]HTTPException)
+
+	// Normal 4XX HTTP Status
+	HTTPExceptionMaps[400] = HTTPException{400, "Bad Request"}
+	HTTPExceptionMaps[401] = HTTPException{401, "Unauthorized"}
+	HTTPExceptionMaps[403] = HTTPException{403, "Forbidden"}
+	HTTPExceptionMaps[404] = HTTPException{404, "Not Found"}
+	HTTPExceptionMaps[405] = HTTPException{405, "Method Not Allowed"}
+
+	// Normal 5XX HTTP Status
+	HTTPExceptionMaps[500] = HTTPException{500, "Internal Server Error"}
+	HTTPExceptionMaps[502] = HTTPException{502, "Bad Gateway"}
+	HTTPExceptionMaps[503] = HTTPException{503, "Service Unavailable"}
+	HTTPExceptionMaps[504] = HTTPException{504, "Gateway Timeout"}
+}