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Full Stack Developer - Small And Urgent Project

1. General Information

This task is about implementing a high-level application architecture for a popular coffee shop in Vienna. Due to its increasing popularity and the difficulty in managing a business without a proper software, the coffee shop management decided to streamline their business process by creating a website and a mobile app with which customers can order a coffee and pay for it even before arriving to the shop. Administrators can view orders and change order status, whereas operators are supported with information that allows them preparing coffees ordered online just in time.

Please consider the following requirements in your solution architecture:

- Mobile app will request access to GPS module of the phone

- Based on location and selected transportation mode the app will suggest ETA which the user can either confirm or enter a different pickup time instead.

- The app will provide the coffee shop with ETA (pickup time)

- Various type of coffees have a defined preparation time – e.g. 3 min or 1 min

- The app puts ETA and preparation time together and pushes the alarm to the operator in the coffee shop, saying when the order should start being prepared

- The app requires online payment in order to complete a coffee request

- Order process IN the coffee shop should also be supported by mobile app (with the difference that ETA is zero)

- You should be able to order more than one coffee at once.

1.1 Use cases for Website and Mobile app

1. Customers can:

a. Register and login

b. Create an Order for coffee c. Cancel order

2. Administrators can:

a. View Orders

b. Change Order statuses

c. View Logging information

3. Operators can:

a. View Orders

b. Commit Orders

4. All can :

a. View orders history

1.2 Logging

A logging functionality responsible for logging all kind of received messages (errors, information, diagnostics, alive signals, confirmations, acknowledgments, etc.) to the database is required.

1.3 Authentication

Users can be Coffee shop admins who manage orders, operators or customers who order coffee.

1.4 Notification

Notifications are sent primarily to Mobile or through email.

2. Your Task

1. Create a relational data-model with the identified domain-objects from the requirements above. Show the relation between the domain-objects/entities

2. Describe a REST-API where you show separation of business logic and persistence layer methods. Use Swagger for this task ([login to view URL])

3. Show an algorithmic code for calculating ETA from a retrieved GPS-position implemented in c#.net

Keep in mind the following general rules:

1. Strictly follow SOC (Separation of Concerns), SRP (Single Responsibility Principle) and KISS (Keep It Simple Stupid) principles.

2. Wherever possible Communication between services should be asynchronous

3. Use a popular ORM or Micro ORM

4. No actual implementation required

Habilidades: Android, Java, Mobile App Development, PHP, Arquitetura de software

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Acerca do Empregador:
( 0 comentários ) Lisboa, Portugal

ID do Projeto: #17716524

31 freelancers estão ofertando em média €335 para esse trabalho

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