Issue
I’m using Angular 2 for a signup form:
first name, last name, email and password.
After submit, the data is being stored via API call in a database (nodeJs and mongo) and generates a JWT Token which is sent back to the client.
Now I should add/generate an UUID (Universal Unique Identifier). As I never have done this kind of feature before, I need an approach and idea/solution how to achieve this… would the JWT Token be a kind of alternative to UUID? If yes, this would be enough.
Otherwise I would prefer to avoid any big changes on the form or its functionality.
I Have been searching, but didn’t find a useful solution. I tried the npm package angular2-uuid, but after installing it as dependency, the ng build -prod throws an error which isn’t clear.
import { UUID } from 'angular2-uuid';
....
let uuid = UUID.UUID();
Error:
ERROR in ./~/@angular/flex-layout/@angular/flex-layout.es5.js Module
build failed: Error: ENOENT: no such file or directory, open
‘/Users/username/dev/app/node_modules/@angular/flex-
layout/@angular/flex-layout.es5.js’ @
./src/$$_gendir/app/app.module.ngfactory.ts 25:0-44 @ ./src/main.ts @
multi webpack-dev-server/client?http://localhost:4200 ./src/main.ts
Any idea or Hint please?
Solution
Issue fixed. Solution: I found out that when I did install the package angular2-uuid via command-line, it was automatically stored in package.json directly before/over the package: @angular/flex-layout.
As the error was in a way not clear, I just did remove it to other position in the: package.json and the error is gone. everything works fine.