add

trading_assistant_api/common/codes/codes.go

@@ -0,0 +1,12 @@
+package codes
+
+type Code string
+
+const (
+	OK               Code = "ok"
+	InvalidInput     Code = "invalid_input"
+	Unauthorized     Code = "unauthorized"
+	Conflict         Code = "conflict"
+	InternalError    Code = "internal_error"
+	MethodNotAllowed Code = "method_not_allowed"
+)

trading_assistant_api/common/httpx/httpx.go

@@ -0,0 +1,43 @@
+package httpx
+
+import (
+	"encoding/json"
+	"net/http"
+
+	"common/types"
+	"common/codes"
+)
+
+func WriteJSON(w http.ResponseWriter, status int, ok bool, msg string, data interface{}) {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+	json.NewEncoder(w).Encode(types.Response{Status: ok, Message: msg, Data: data})
+}
+
+func OK(w http.ResponseWriter, data interface{}) {
+	WriteJSON(w, http.StatusOK, true, string(codes.OK), data)
+}
+
+func Created(w http.ResponseWriter, data interface{}) {
+	WriteJSON(w, http.StatusCreated, true, string(codes.OK), data)
+}
+
+func BadRequest(w http.ResponseWriter, msg string) {
+	WriteJSON(w, http.StatusBadRequest, false, msg, map[string]string{"code": string(codes.InvalidInput)})
+}
+
+func Unauthorized(w http.ResponseWriter, msg string) {
+	WriteJSON(w, http.StatusUnauthorized, false, msg, map[string]string{"code": string(codes.Unauthorized)})
+}
+
+func Conflict(w http.ResponseWriter, msg string) {
+	WriteJSON(w, http.StatusConflict, false, msg, map[string]string{"code": string(codes.Conflict)})
+}
+
+func MethodNotAllowed(w http.ResponseWriter, msg string) {
+	WriteJSON(w, http.StatusMethodNotAllowed, false, msg, map[string]string{"code": string(codes.MethodNotAllowed)})
+}
+
+func InternalError(w http.ResponseWriter) {
+	WriteJSON(w, http.StatusInternalServerError, false, string(codes.InternalError), map[string]string{"code": string(codes.InternalError)})
+}