Initial cloud-services repo - gateway service + pkg modules

pkg/common/json_rpc.go

@@ -0,0 +1,53 @@
+package common
+
+const JSONRPCVersion = "2.0"
+
+func NewJSONRPCResponse(req JSONRPCRequest, result map[string]interface{}) JSONRPCResponse {
+	resp := JSONRPCResponse{Result: result}
+	resp.Init(req)
+	return resp
+}
+
+func NewJSONRPCErrorResponse(code int, message string) JSONRPCErrorResponse {
+	err := JSONRPCErrorResponse{}
+	err.RPCVersion = JSONRPCVersion
+	err.Err(code, message)
+
+	return err
+}
+
+type JSONRPCData map[string]interface{}
+
+type JSONRPCBase struct {
+	RPCVersion string `json:"jsonrpc" validate:"required,max=10"`
+	Method     string `json:"method" validate:"required,max=1000"`
+	ID         int    `json:"id" validate:"required,gt=0"`
+}
+
+func (b *JSONRPCBase) Init(req JSONRPCRequest) {
+	b.RPCVersion = req.RPCVersion
+	b.Method = req.Method
+	b.ID = req.ID
+}
+
+type JSONRPCRequest struct {
+	JSONRPCBase
+	Params JSONRPCData `json:"params"`
+}
+
+type JSONRPCResponse struct {
+	JSONRPCBase
+	Result JSONRPCData `json:"result"`
+}
+
+type JSONRPCErrorResponse struct {
+	JSONRPCBase
+	Error JSONRPCData `json:"error"`
+}
+
+func (e *JSONRPCErrorResponse) Err(code int, message string) {
+	e.Error = JSONRPCData{
+		"code":    code,
+		"message": message,
+	}
+}