I'm studying the MEAN stack, I'm really enjoying it, and I'm developing simple applications, however, I couldn't find something that would really help me understand better about authentication and permissions using MEAN, and what my bank would look like. I would be grateful if someone could help me, a link to a source demo, a material that was not difficult to understand would help a lot. Thank you all in advance.
Lucas, MEAN uses Mongo, Node and Angular. Furthermore, you can authenticate in several ways. With Angular you can apply an Interceptor and after validating the information on your server through a get request, if it returns 401 you can forward the user to an "Unauthorized" page.
The persistence paradigm in MongoDb is a little different from what we're used to in relational databases.
If you have questions just say it.