This application shows a typical structure for applications that require authentication in order to get data. The base application uses @ionic/storage to store the login token between sessions.
- clone this repo
- cd iv-training-starter
- npm i
- npm run build
- npx cap update - this may take a while
- npm run build
- npm start - to run in the browser
- npx cap open ios
Two services and two HTTP interceptors are related to authentication within the application.
The IdentityService defines the identity of the currently logged in user including the authentication token associated with the user. This service also persists the token so it is available between sessions.
The AuthenticationService handles the POSTs to the login and logout endpoints. If these operations are successful it registers this fact with the IdentityService.
Two HTTP interceptors are used by the code. One adds the token to outgoing requests, the other redirects the application to the login page
Upon starting up, the application attempts to load the TeaCategoriesPage. The TeaCategoriesPage uses the TeaCategoriesService to get information about various categories of tea. If this API call fails with a 401 error, then either the user is not logged in or the stored token is not valid. In either case, the application navigates to the login page.
On one machine, I kept getting the following error:
xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance
See the solution here: https://stackoverflow.com/questions/17980759/xcode-select-active-developer-directory-error