SwapIt

Table of Contents

1. Overview
2. Product Spec
3. Wireframes
4. Schema

Overview

Description

This app allows users to exchange currency with those others that are traveling to avoid the unnecessary transaction fees at airports and other exchange centers.

App Evaluation

[Evaluation of your app across the following attributes]

• Category: Social Networking/ Travel / Currency
• Mobile: This app would primarily be developed for mobile, since many of these transactions would be simple and on-the-go.
• Story: Avoids transaction fees in currency exchanges.
• Market: Any traveling individual could choose to use this app, and to maintain user trust, each user would have a reliability rating.
• Habit: This app can be used at any time the user prefers, especially while traveling, to exchange means of currency.
• **Scope:**Primarily, we would focus on getting people with those willing to exchange in their area. After, we would implement certain chat rooms and connections.

Product Spec

1. User Stories (Required and Optional)

Required Must-have Stories

• Users can contact other users for details in exchange
• Users can login to the app
• Users can sign up for an account
• Users can create their own profile

Optional Nice-to-have Stories

• Users can review other users regarding their exchange experience
• Users can see the locations of other users for exchange through a map

2. Screen Archetypes

• Login
  • Users can choose to login or sign up for an account.
• Registration screen
  • users can sign up for an account
• Profile Page
  • Users can establish a profile to determine their credibility and / or currency they are looking for / can provide for exchange.
• Messages Page
  • Users can contact the person to exchange through the message function to negotiate price and to meet up.
• Exchange Search Screen
  • Users can view the locations of the people who can provide the desired currency exchange through the map

3. Navigation

Tab Navigation (Tab to Screen)

• Exchange page
• Profile page
• Message page

Flow Navigation (Screen to Screen)

• Sign up/Login => Exchange screen
• Exchange screen => Message screen

Wireframes

[Add picture of your hand sketched wireframes in this section]

[BONUS] Digital Wireframes & Mockups

https://xd.adobe.com/view/ca76cdc7-bab4-4807-488e-87034eac68da-bc47/

[BONUS] Interactive Prototype

https://xd.adobe.com/view/ca76cdc7-bab4-4807-488e-87034eac68da-bc47/

Schema

Models

Sending Messages

Property	Type	Description
objectId	String	user’s username to identifies their account
message	String	message that the user sends
timeSent	DateTime	time a message was sent

Finding exchanges

Property	Type	Description
objectId	String	user’s username
amount	Number	amount of money that the user wants to exchange
currencyStart	String	currency that user has
currencyEnd	String	currency that user would like to exchange to
location	Location	User's location to find matches nearby
timeExchange	DateTime	time exchange request was made

Currency rates

Property	Type	Description
base	String	the base currency type
date	Date	the date of the rate

Networking

List of network requests by screen

• Home Feed Screen
  • (Read/GET) Query the current currency rate from the network
• Create Message Screen
  • (Create/POST) Create a new message object
• Profile Screen
  • (Read/GET) Query logged in user object

         let query = PFQuery(className:"Post")
         query.whereKey("author", equalTo: currentUser)
         query.findObjectsInBackground { (posts: [PFObject]?, error: Error?) in
            if let error = error { 
               print(error.localizedDescription)
            } else if let posts = posts {
               print("Successfully retrieved \(posts.count) posts.")
           // TODO: Do something with posts...
            }
         }
         ```

  • (Update/PUT) Update user profile image
• SwapIt Screen
  • (Read/GET) Query locations of swappers through the map function
  • (Read/GET) Query all available exchanges where user are swappers

OPTIONAL: List endpoints if using existing API such as Yelp

An API of currency rate

• Base URL = https://exchangeratesapi.io

  HTTP Verb	Endpoint	Description
  GET	/latest	latest exchange rate
  GET	/latest?Base=USA	Base as USD exchange rate