package li.l1t.tingo.rest;

import li.l1t.tingo.exception.JsonPropagatingException;
import li.l1t.tingo.model.Teacher;
import li.l1t.tingo.model.dto.FieldDto;
import li.l1t.tingo.service.FieldService;
import li.l1t.tingo.service.TeacherService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;

/**
 * Controller prociding a REST API for Tingo fields.
 *
 * @author <a href="http://xxyy.github.io/">xxyy</a>
 * @since 2016-02-14
 */
@RestController
public class FieldController {
    private final FieldService fieldService;
    private final TeacherService teacherService;

    @Autowired
    public FieldController(FieldService fieldService, TeacherService teacherService) {
        this.fieldService = fieldService;
        this.teacherService = teacherService;
    }

    @RequestMapping("/api/field/by/teacher/{teacherId}/")
    public List<FieldDto> byTeacherId(@PathVariable("teacherId") int teacherId) {
        Teacher teacher = teacherService.getById(teacherId);
        if(teacher == null) {
            throw new JsonPropagatingException("Unknown teacher!");
        }
        return StreamSupport.stream(fieldService.getAllFieldsByTeacher(teacher).spliterator(), false)
                .map(fieldService::toDto)
                .collect(Collectors.toList());
    }
}

package li.l1t.tingo.rest;

import li.l1t.tingo.exception.JsonPropagatingException;
import li.l1t.tingo.model.Teacher;
import li.l1t.tingo.model.dto.FieldDto;
import li.l1t.tingo.service.FieldService;
import li.l1t.tingo.service.TeacherService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

import java.util.List;
import java.util.stream.Collectors;
import java.util.stream.StreamSupport;

/**
 * Controller prociding a REST API for Tingo fields.
 *
 * @author <a href="http://xxyy.github.io/">xxyy</a>
 * @since 2016-02-14
 */
@RestController
public class FieldController {
    private final FieldService fieldService;
    private final TeacherService teacherService;

    @Autowired
    public FieldController(FieldService fieldService, TeacherService teacherService) {
        this.fieldService = fieldService;
        this.teacherService = teacherService;
    }

    @RequestMapping("/api/field/by/teacher/{teacherId}")
    public List<FieldDto> byTeacherId(@PathVariable("teacherId") int teacherId) {
        Teacher teacher = teacherService.getById(teacherId);
        if(teacher == null) {
            throw new JsonPropagatingException("Unknown teacher!");
        }
        return StreamSupport.stream(fieldService.getAllFieldsByTeacher(teacher).spliterator(), false)
                .map(fieldService::toDto)
                .collect(Collectors.toList());
    }
}

Remove trailing slash from FieldController's API URL