EventManagerController.kt

package at.triply.backend.eventbackend.security

import at.triply.backend.eventbackend.data.entities.EventManager
import at.triply.backend.eventbackend.data.repositories.EventManagerRepository
import org.springframework.data.rest.webmvc.BasePathAwareController
import org.springframework.http.ResponseEntity
import org.springframework.web.bind.annotation.PostMapping
import org.springframework.web.bind.annotation.RequestBody
import org.springframework.web.bind.annotation.RequestMapping
import org.springframework.web.bind.annotation.ResponseBody

@BasePathAwareController
@RequestMapping("/users")
class EventManagerController(val eventManagerRepository: EventManagerRepository) {

    @PostMapping("/signup")
    @ResponseBody
    fun signUp(@RequestBody user: EventManager): ResponseEntity<User> {
        return ResponseEntity.ok(
                eventManagerRepository.save(user)
        )
    }
}

User.kt

package at.triply.backend.eventbackend.security

interface User {

    val username: String
    val password: String
}