Project structure refactor:

- Change package name general_server to gateway
- Changing the structure of directories and packages
- Adding vendor to the project

internal/server/rpc/errors.go

@@ -0,0 +1,39 @@
+package rpc
+
+import (
+	"encoding/json"
+	"net/http"
+)
+
+const (
+	ErrParseError  = -32700
+	ErrParseErrorS = "Parse error"
+
+	ErrInvalidRequest  = -32600
+	ErrInvalidRequestS = "Invalid Request"
+
+	ErrMethodNotFound  = -32601
+	ErrMethodNotFoundS = "Method not found"
+
+	ErrInvalidParams  = -32602
+	ErrInvalidParamsS = "Invalid params"
+
+	ErrInternalError  = -32603
+	ErrInternalErrorS = "Internal error"
+
+	ErrContextVersion  = -32010
+	ErrContextVersionS = "Invalid context version"
+)
+
+func WriteRouterError(w http.ResponseWriter, status int, e *RPCError) error {
+	w.Header().Set("Content-Type", "application/json")
+	w.WriteHeader(status)
+
+	data, err := json.Marshal(e)
+	if err != nil {
+		return err
+	}
+
+	_, err = w.Write(data)
+	return err
+}