mcnewz/first-springboot-project

Initial rest service

Reference https://github.com/in28minutes/SpringBootForBeginners

Step2

• @Component
• @Autowired
• @RestController https://github.com/in28minutes/spring-boot-master-class/blob/master/05.Spring-Boot-Advanced/Step02.md

Step 4

Overrode Version spring-boot-starter-web-services spring-boot-starter-test spring-boot-starter-jdbc spring-boot-starter-security spring-boot-starter-data-jpa spring-boot-starter-data-rest More at https://docs.spring.io/spring-boot/docs/current-SNAPSHOT/reference/htmlsingle/#using-boot-starter

Step 6

service rest survay http://localhost:8080/surveys/Survey1/questions/

Step 8

Adding the second method to rest service to retrieve a specific question https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step08.md

Step 10

add a new question to survey https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step10.md

Output

Post

http://localhost:8080/surveys/Survey1/questions/

• request body

{
    "id": "Question1",
    "description": "Largest Country in the World",
    "correctAnswer": "Russia",
    "options": [
        "India",
        "Russia",
        "United States",
        "China"
    ]
}

Get 1

http://localhost:8080/surveys/Survey1/questions/

    {
        "id": "Question1",
        "description": "Largest Country in the World",
        "correctAnswer": "Russia",
        "options": [
            "India",
            "Russia",
            "United States",
            "China"
        ]
    },
    {
        "id": "Question2",
        "description": "Most Populus Country in the World",
        "correctAnswer": "China",
        "options": [
            "India",
            "Russia",
            "United States",
            "China"
        ]
    },
    {
        "id": "Question3",
        "description": "Highest GDP in the World",
        "correctAnswer": "United States",
        "options": [
            "India",
            "Russia",
            "United States",
            "China"
        ]
    },
    {
        "id": "Question4",
        "description": "Second largest english speaking country",
        "correctAnswer": "India",
        "options": [
            "India",
            "Russia",
            "United States",
            "China"
        ]
    }
]

Get 2

http://localhost:8080/surveys/Survey1/questions/Question1

    "id": "Question1",
    "description": "Largest Country in the World",
    "correctAnswer": "Russia",
    "options": [
        "India",
        "Russia",
        "United States",
        "China"
    ]
}

Step 14

https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step14.md set up other of service embeded like a jetty, tomcat

Step 15

https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step15.md YAML @Value(${key}) Parameter global

• Using Dynamic Configuration in your application
• Customize Welcome Message
• Different ways of configuration
• --welcome.message="SomethingElse" in Program Arguments"
• --spring.config.location=classpath:/default.properties
• We will learn about profiles in next step
• Using Placeholders
• YAML

Step 16

https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step16.md @Bean, @Profile("dev"), Flavors run

• Understand Basics of Profiles
• Setting a profile
• Using -Dspring.profiles.active=prod in VM Arguments
• spring.profiles.active=prod
• Using a profile
• application-{profile-name}.properties
• @Profile("dev") on a bean
• Usage
• Configure Resources - Databases, Queues, External Services

Step 17

https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step17.md @ConfigurationProperties("basic")

• better configuration management than @Value
• Type-safe Configuration Properties

Step 18

https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step16.md Create a very simple example with Spring Data JPA

JPA : Java Persistent Api = use for map java object to any DB relations

• Let's switch back to tomcat first!
• Get introduced to Spring Data JPA
• Create a very simple example with Spring Data JPA
• Use CommandLineRunner!

Useful Properties

• spring.datasource.driver-class-name=com.mysql.jdbc.Driver
• spring.datasource.url=jdbc:mysql://localhost:3306/test
• spring.datasource.username=root
• spring.datasource.password=admin
• spring.datasource.initialize=true
• spring.jpa.hibernate.ddl-auto=update
• spring.jpa.show-sql=true

Step 19

https://github.com/in28minutes/SpringBootForBeginners/blob/master/Step19.md

Spring data jpa document https://docs.spring.io/spring-data/jpa/docs/current/reference/html/#repositories.query-methods.details

• Look at H2 Console : http://localhost:8080/h2-console
  • Use db url jdbc:h2:mem:testdb
• Add findByRole method

Step 20

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step20.md

• Learn Spring data rest that use to build a simple REST API.
• Introduction to Spring Data Rest
• Hit http://localhost:8080/users in POSTMAN
• http://localhost:8080/users/1
• http://localhost:8080/users/?size=4
• http://localhost:8080/users/?sort=name,desc
• @Param("role")
• http://localhost:8080/users/search/findByRole?role=Admin
• Good for quick prototype! Be cautious about using this in Big applications!

Step 21

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step21.md

SurveyController TDD SurveyControllerIT.clss -> testRetrieveSurveyQuestion

Step 22

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step22.md

SurveyController TDD SurveyControllerIT.clss -> addQuestion.clss

Step 23

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step23.md

• Clean code
• SurveyController TDD SurveyControllerIT.clss -> retrieveAllSurveyQuestions.clss

Step 24

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step24.md

Unit Test -> SurveyControllerTest.clss -> retrieveDetailsForQuestion.clss

• Write a Unit Test for retrieving a specific question from a survey.
• Different between Unit Test and Integration Test
• Basics of Mocking
• MockMvc framework
• @MockBean
• Programming Tip
• Be an expert at Mockito - https://courses.in28minutes.com/p/mockito-for-beginner-in-5-steps

Step 25

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step25.md

Unit Test -> SurveyControllerTest.clss -> createSurveyQuestion, retrieveSurveyQuestions

Write Step Unit Test Get, Post Service

Step 26

https://github.com/in28minutes/SpringBootForBeginners/blob/master/05.Spring-Boot-Advanced/Step26.md Spring Security

• Securing our services with Basic Authentication using Spring Security
• Executing Requests using Basic Authentication with Postman
• default user name is user
• default security password is printed in console