I've an external web application made with Angular 8 where I should display some data coming from our SharePoint Online site.
I've created an user without license that has read-only permissions on a SharePoint list. This user has to be used for authentication from the external Angular web application.
Is there a way to call SharePoint web services from an external Angular application? I don't need authentication for users that use the external application, because I'll provide the user described above.
I've found this Angular service: https://github.com/keriackus/angularjs-sharepoint-authentication but it seems to be for an old Angular version.