api-demo

api-demo

This project was made to test Spring Boot with an example API of Users.

Prerequisites

• Generate a new project with Spring Initializr and select next options:
  • Language: ⬤ Java
  • Project: ⬤ Maven
  • Spring Boot Version: ⬤ 3.1.5
  • Packaging: ⬤ Jar
  • Java Version: ⬤ 11
  • Add next dependencies:
    • Spring Web WEB
    • Spring Data JDBC SQL
• Run an instance of PostgreSQL with docker using next commmand:

  docker run -d --name postgresql -e POSTGRES_USER=pgsql -e POSTGRES_PASSWORD=s3cr3t -e POSTGRES_DB=example -p 5432:5432 postgres:14 

• Execute 01_CREATE-TABLE.sql in your database instance.
• Configure DataSource in your Java project (in application.properties file)

Run & Test

To test this project, first run the Java application:

mvn spring-boot:run

And then execute next CURL command:

curl -X POST localhost:8080/api/user -H 'Content-Type: application/json' -d '{ "name": "John Doe"}'

You will be able to see a JSON response:

{
  "id": 1,
  "name": "John Doe"
}