kaliloteixeira/weatherapp_backend

weather_app_backend

Preparation Project

Weather JAVA EE + Angular+ UI

Project name: WeatherApp + Angular8+ Tech stack: J2EE, Angular8+

Lesson goals

Project made during application for Intern Position at ITWare.

To Run

// Clone the repository

• git clone

// Run the project with your IDE using a Server (Glassfish / Tomcat)

Java EE 6+

1. Java EE Project structure
2. Rest WebServices (JAX-RS)
3. Dependency Injection (DI)
4. Java Persistence API (JPA)
5. Background services (Scedulers)
6. Access external services via Rest API (Rest Client)
7. Authentication
8. Session management

Homework description

Create a client-server application, the main function is to show a cities weather (temperature) data on a simple web interface, so we call our application "WeatherApp"

The main functions of the WeatherApp

1. Enter a city name, and fint the weather information from a public, external API (eg. openweathermap.com)
2. Save the weather information to local database for the city that was entered
3. List the cities and weather information that are in our local database
4. Can delete city from out local database
5. Weather data is automatically refreshed in the background using a scheduled service

Use cases

1. Add new city weather data
2. Get list of weather data from our local database
3. Delete city from our local database

Tasks to be completed

Backend

1. Create and configure the JavaEE project, called WeatherApp
2. Configure database 0. Create schema: weatherapp 0. Create table: weatherdata 0. cityname - name of the city 0. temperature - the last known temperature of the city 0. time - the time of the measurement
3. Configure application server.
4. Create services and Rest interfaces.
5. Build and deploy application.
6. Test application's Rest API

Checklist

Component	Task	Description	Done (Y/N)
Backend	Create project structure	Create a new Java EE application project in your favorite IDE and configure it.	✅
Backend	Build and deploy project	Build and run the empty project on a J2EE container server.	✅
Database	Create database schema and tables	Create the necesary database schema and the tables.	✅
Backend	Create entity class and basic JPA functions	Create model for watherdata and save it, load it from database successfully.	✅
Backend	Hello world Rest API	Create a simple REST API which returns only "Hello Weather"	✅
Backend	Rest API: addCity	Implement and test the addCity API. Save data to database.	✅
Backend	Rest API: listCities	Implement and test listCities API. Have to load data from local DB.	✅
Backend	Rest API: deleteCity	Implement and test deleteCity API. Have to delete data from local DB.	✅
Backend	openweathermap API client	Implement a client that calls openweatherapi.org weather REST API by city name. The result must be saved to our local database.	✅
Backend	Scheduled update service	Implement a the update service which update the cities data from the openweather api.	✅
Backend	Dependency Injection	Use DI to use Java EE components: update service (EJB), entityManager (JPA) etc...	✅
Backend	Error handling	Handle errors in the Rest API with general way.	✅
Backend	Logging	Log the events what happens in the REST API.	✅
Backend + Frontend	CHECK ALL THE APPLICATION IS WORKING?	CHECK ALL THE APPLICATION IS WORKING?	✅