Implement dummy user api

@@ -251,6 +251,45 @@ createServer({
         },
       };
     });
+
+    this.post("/users/renew", (schema, request) => {
+      return {
+        status: 200,
+        data: {
+          access_token:
+            "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c",
+          refresh_token:
+            "eyJhbGciOiJIUzI1NiIsInR5cCI6IkpXVCJ9.eyJzdWIiOiIxMjM0NTY3ODkwIiwibmFtZSI6IkpvaG4gRG9lIiwiaWF0IjoxNTE2MjM5MDIyfQ.SflKxwRJSMeKKF2QT4fwpMeJf36POk6yJV_adQssw5c",
+          expiration: "2020-05-14T07:23:24Z",
+        },
+      };
+    });
+
+    this.post("/users/signup", (schema, request) => {
+      return {
+        status: 200,
+        message: "completed",
+        data: {
+          user_id: "test",
+          name: "test",
+          total_size: 1099511627776,
+          current_size: 0,
+        },
+      };
+    });
+
+    this.post("/users/:user_id", (schema, request) => {
+      return {
+        status: 200,
+        data: {
+          id: "123",
+          user_id: "test",
+          name: "test",
+          total_size: 1099511627776,
+          current_size: 0,
+        },
+      };
+    });
   },
 
   seeds(server) {