add roles routes

api/main.proto

@@ -110,11 +110,31 @@ service EveningDetectiveServer {
     };
   }
 
+  rpc GetUserById(GetUserByIdReq) returns (GetUserByIdRsp) {
+    option (google.api.http) = {
+      get: "/api/users/{id}"
+    };
+  }
+
   rpc GetMe(GetMeReq) returns (GetMeRsp) {
     option (google.api.http) = {
       get: "/api/me"
     };
   }
+
+  rpc AddUserRole(AddUserRoleReq) returns (AddUserRoleRsp) {
+    option (google.api.http) = {
+      post: "/api/users/{id}/role/add"
+      body: "*"
+    };
+  }
+
+  rpc DeleteUserRole(DeleteUserRoleReq) returns (DeleteUserRoleRsp) {
+    option (google.api.http) = {
+      post: "/api/users/{id}/role/delete"
+      body  : "*"
+    };
+  }
 }
 
 message PingReq {}
@@ -183,9 +203,36 @@ message User {
   google.protobuf.Timestamp created_at = 6;
 }
 
+message GetUserByIdReq {
+  int32 id = 1;
+}
+
+message GetUserByIdRsp {
+  string error = 1;
+  User   user  = 2;
+}
+
 message GetMeReq {}
 
 message GetMeRsp {
   string error = 1;
   User   user  = 2;
 }
+
+message AddUserRoleReq {
+  int32  id   = 1;
+  string role = 2;
+}
+
+message AddUserRoleRsp {
+  string error = 1;
+}
+
+message DeleteUserRoleReq {
+  int32  id   = 1;
+  string role = 2;
+}
+
+message DeleteUserRoleRsp {
+  string error = 1;
+}