1. Firebase https://firebase.google.com https://firebase.google.com/docs/database/android/read-and-write
2. MongoDB
3. Fake data - a List data structure

##How to switch database manager

To switch to a different database manager, change the name of the @Qualifier In the database service

##| Table : Guest

@Service
public class GuestService {

    @Autowired
    @Qualifier("mongoGuestData")
    private IGuestDao guestDao;

    ....
}

Table : Guest

                            @Repository                                              
                            @Qualifier("firebaseGuestData")                          
                            public class FirebaseGuestDaoImpl implements IGuestDao { 
                                ....                                                 
                            }                                                        
                            ```                                                      

|-----------|-------------------|----------------------------------------------------------| | MongoDb | mongoGuestData | ```java |

                              @Repository                                              
                              @Qualifier("mongoGuestData")                             
                              public class MongoGuestDaoImpl implements IGuestDao{     
                                  ....                                                 
                              }                                                        
                              ```                                                      

|-----------|-------------------|----------------------------------------------------------| | FakeGuest | fakeGuestData | java | @Repository @Qualifier("fakeGuestData") public class FakeGuestDaoImpl implements IGuestDao { .... }

https://firebase.google.com/docs/admin/setup

To use the Firebase Admin SDKs, you'll need a Firebase project, a service account to communicate with the Firebase service, >and a configuration file with your service account's credentials.

If you don't already have a Firebase project, add one in the Firebase console[https://console.firebase.google.com/].

rename the JSON File to "service_account.json"

src\main\resources

In the sources folder, add the resource file: src/main/resources/service_account.json

Spring Boot gives you defaults on all things, the default in database is H2, so when you want to change this and use any other database you must define the connection attributes in the application.properties file.

In the sources folder, you create a resource file src/main/resources/application.properties

#Firebase configuration
rs.firebase.database.url=https://group-project.firebaseio.com
rs.firebase.config.path=service_account.json

# Mongo database URI. Cannot be set with host, port and credentials.
# 

spring.data.mongodb.host=localhost 
spring.data.mongodb.port=27017   
spring.data.mongodb.database=hotelreservation
spring.data.mongodb.username=hoteladmin
spring.data.mongodb.password=sdr$%3w43@123

##Rest API testing tool https://www.getpostman.com/

REST API Examples

INSERT: POST method url: localhost:8080/guests Body - raw - JSON(application/json)

{
    "name": "kim",
    "email": "[email protected]"
}

{
"name": "moya",
"email": "[email protected]"
}

SELECT by id: GET method url: localhost:8080/guests/id/5cbd4d118f10f904687a4b2d

DELETE by id: DELETE method url: localhost:8080/guests/id/5cbd4d118f10f904687a4b2d

UPDATE: PUT method url: localhost:8080/guests Body - raw - JSON(application/json)

{
    "id": "5cbd4d118f10f904687a4b2d",
    "name": "kim white",
    "email": "[email protected]"
}

This is a group project, sorry you cannot contribute unless you are a part of the group