How would I go about building and hosting my own backend for an iOS application?

Question

As a preface: I want to do this as a learning exercise. I'm not trying to produce a commercially viable app. What are the layers/abstractions of an iOS application that is connected to a custom, self hosted backend? What technologies are needed to build this stack? This post has helped my understanding a bit. I'm currently using Firebase as my backend but have found its NoSQL structure wrong for my app. The data I'm storing is relational, so I think an SQL database storing JSON would work better. The data is modeling Vehicles shared between Users. From my research, the Realm Platform looks like a good choice. Am I understanding the technologies correctly here? Does this sentence make sense? General functionality: Sign Up and Login of users Upload/download vehicle data Some server side logic Pushing data updates to users in real time So would the stack look like the following? User Front End: iOS app written in Swift Database: Realm Database (SQL) Server: Realm Object Server I'm really looking for an overview of the general architecture. I don't know anything about that, so I'm sure I have failed to provide many details that are necessary for a thorough answer. I apologize if this question is redundant; most answers I've seen for similar questions typically end with "just use AWS, Firebase, etc". Thanks! JavaScript questions and answers, JavaScript questions pdf, JavaScript question bank, JavaScript questions and answers pdf, mcq on JavaScript pdf, JavaScript questions and solutions, JavaScript mcq Test , Interview JavaScript questions, JavaScript Questions for Interview, JavaScript MCQ (Multiple Choice Questions)

Answer 1

For a start you want to build your own backend and you should create your own API's that your IOS application will connect to. in short this is called REST api https://www.sitepoint.com/developers-rest-api/ you will need to use many more technologies more than just a server like Apache once you create your backend API you will need to connect it to the IOS app which can be done using NSURLSession builtin framework form Apple or Alamofire which is based on NSURLSession but its easer to use if you are learning you will need to learn how to do an http/https request to understand how the request is made check this https://medium.com/@MuraliKathir/build-a-simple-api-search-with-alamofire-and-swiftyjson-80286e833315 Now to Realm. Realm is a local database that will be inside of your IOS app which helps you save data downloaded online or even user generated https://realm.io/docs/swift/latest/#queries