Rest API by Spring boot 2 + JWT example project

Create simple REST APIs authentication by JWT and manage user in database using,

• JAVA 11
• MYSQL
• Maven
• Spring boot 2
  • spring-boot-starter-web
  • spring-boot-starter-security
  • spring-boot-starter-data-jpa
• Other libraries
  • mysql-connector-java
  • jjwt - json web token
  • jakarta.xml.bind-api - in JAVA 11 java.xml.bind (JAXB) has been removed.

APIs

/register

API to register user. Once registered then, use /authenticate API to create JWT token.

Example request:

curl -X POST 'http://localhost:8080/register' -H 'Content-Type: application/json' --data-raw '{
    "username": "winitonc",
    "password": "password"
}'

Example response:

{
    "id": 1,
    "username": "winitonc"
}

/authenticate

API to authenticate user. This api return JWT token then, use token on /hello API.

Example request:

curl -X POST 'http://localhost:8080/authenticate' -H 'Content-Type: application/json' --data-raw '{
    "username": "winitonc",
    "password": "password"
}'

Example response:

{
    "token": "eyJhbGciOiJIUzUxMiJ9.eyJzdWIiOiJ3aW5pdG9uYyIsImV4cCI6MTU5NTg2MjgyNywiaWF0IjoxNTk1ODQ0ODI3fQ.D0RyTbO5ssFAeH-SPJDh5icDZKBPNK6Q9pqKdIhXPX6o3sEgexo0fmQmD5DTeLo4gGSrqMwj-3dHlWIGPPX3QA"
}

/hello

API to test authenication with bareer JWT token.

Example request with 401 response:

curl -X GET 'http://localhost:8080/hello'

Example request with 200 response:

curl -X GET 'http://localhost:8080/hello' -H 'Authorization: Bearer eyJhbGciOiJIUzUxMiJ9.eyJzdWIiOiJ3aW5pdG9uYyIsImV4cCI6MTU5NTg2MjgyNywiaWF0IjoxNTk1ODQ0ODI3fQ.D0RyTbO5ssFAeH-SPJDh5icDZKBPNK6Q9pqKdIhXPX6o3sEgexo0fmQmD5DTeLo4gGSrqMwj-3dHlWIGPPX3QA'