Connected App Case Study

Connected Country Feature Specs

Story: Customer should be able to view the country list and detailed informations

Narrative #1

As a Connected customer 
I want the app to display information about countries around the world.

Scenarios (Acceptance criteria)

Given the customer has connectivity
 When the customer requests to see the countries
 Then the app should display the countries from remote,
 and it, let the user to show the detail,
  of the selected country with more detailed informations 

Use Cases

Load Countries From Remote Use Case

Data:

• URL

Primary course (happy path):

1. Execute "Load Countries" command with above data.
2. System downloads data from the URL.
3. System validates downloaded data.
4. System creates country from valid data.
5. System delivers country image.

Invalid data – error course (sad path):

1. System delivers invalid data error.

No connectivity – error course (sad path):

1. System delivers connectivity error.

---

Model Specs

Country

Property	Type
name	CountryName
independent	Bool (optional)
unMember	Bool (optional)
capital	Array<String>
continents	Array<String>
flags	CountryFlag
region	String (optional)
subregion	String (optional)
population	Int64 (optional)

Country Name

Property	Type
common	String
official	String (optional)

Country Flag

Property	Type
png	String (optional)
svg	String (optional)
alt	String (optional)

Payload contract

GET restcountries.com/v3.1/name/usa

200 RESPONSE

{
    "name": {
            "common": "United States",
            "official": "United States of America"
        },
        "independent": true,
        "unMember": true,
        "currencies": {
            "USD": {
                "name": "United States dollar",
                "symbol": "$"
            }
        },
        "capital": [
            "Washington, D.C."
        ],
        "region": "Americas",
        "subregion": "North America",
        "languages": {
            "eng": "English"
        },
        "borders": [
            "CAN",
            "MEX"
        ],
        "area": 9372610.0,
        "flag": "🇺🇸",
        "maps": {
            "googleMaps": "https://goo.gl/maps/e8M246zY4BSjkjAv6",
            "openStreetMaps": "https://www.openstreetmap.org/relation/148838#map=2/20.6/-85.8"
        },
        "population": 329484123,
        "timezones": [
            "UTC-12:00",
            "UTC-11:00",
            "UTC-10:00"
        ],
        "continents": [
            "North America"
        ],
        "flags": {
            "png": "https://flagcdn.com/w320/us.png",
            "svg": "https://flagcdn.com/us.svg",
            "alt": "The flag of the United States of America is composed of thirteen equal horizontal bands of red alternating with white. A blue rectangle, bearing fifty small five-pointed white stars arranged in nine rows where rows of six stars alternate with rows of five stars, is superimposed in the canton."
        },
        "startOfWeek": "sunday",
        "capitalInfo": {
            "latlng": [
                38.89,
                -77.05
            ]
        },
        "postalCode": {
            "format": "#####-####",
            "regex": "^\\d{5}(-\\d{4})?$"
        },
        ...
}

---

App Architecture

TBD

---

Credits

• Restcountries.com REST API

---

Get in Touch