Implement create project route

src/main/java/de/szut/lf8_starter/project/GetProjectDto.java

@@ -0,0 +1,43 @@
+package de.szut.lf8_starter.project;
+
+import com.fasterxml.jackson.annotation.JsonFormat;
+import jakarta.validation.constraints.NotBlank;
+import jakarta.validation.constraints.NotNull;
+import lombok.Getter;
+import lombok.Setter;
+
+import java.time.LocalDate;
+import java.util.List;
+
+@Getter
+@Setter
+public class GetProjectDto {
+    @NotBlank
+    private String name;
+
+    @NotNull
+    private long leadingEmployee;
+
+    private List<Long> employees;
+
+    @NotNull
+    private long contractor;
+
+    @NotBlank
+    private String contractorName;
+
+    @NotBlank
+    private String comment;
+
+    @NotNull
+    @JsonFormat(pattern = "dd.MM.yyyy")
+    private LocalDate startDate;
+
+    @NotNull
+    @JsonFormat(pattern = "dd.MM.yyyy")
+    private LocalDate plannedEndDate;
+
+    @NotNull
+    @JsonFormat(pattern = "dd.MM.yyyy")
+    private LocalDate endDate;
+}

src/main/java/de/szut/lf8_starter/project/dto/CreateProjectAction.java

@@ -0,0 +1,42 @@
+package de.szut.lf8_starter.project.dto;
+
+import de.szut.lf8_starter.project.GetProjectDto;
+import de.szut.lf8_starter.project.ProjectEntity;
+import de.szut.lf8_starter.project.ProjectMapper;
+import de.szut.lf8_starter.project.ProjectService;
+import io.swagger.v3.oas.annotations.Operation;
+import io.swagger.v3.oas.annotations.media.Content;
+import io.swagger.v3.oas.annotations.media.Schema;
+import io.swagger.v3.oas.annotations.responses.ApiResponse;
+import io.swagger.v3.oas.annotations.responses.ApiResponses;
+import jakarta.validation.Valid;
+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.RestController;
+
+@RestController
+@RequestMapping(value = "/projects")
+public class CreateProjectAction {
+    private final ProjectService projectService;
+    private final ProjectMapper projectMapper;
+
+    public CreateProjectAction(ProjectService projectService, ProjectMapper mappingService) {
+        this.projectService = projectService;
+        this.projectMapper = mappingService;
+    }
+
+    @Operation(summary = "Creates a new Project")
+    @ApiResponses(value = {
+            @ApiResponse(responseCode = "201", description = "created project", content = {@Content(mediaType = "application/json", schema = @Schema(implementation = GetProjectDto.class))}),
+            @ApiResponse(responseCode = "400", description = "invalid JSON posted", content = @Content),
+            @ApiResponse(responseCode = "401", description = "not authorized", content = @Content)})
+    @PostMapping
+    public GetProjectDto create(@RequestBody @Valid CreateProjectDto createProjectDto) {
+        ProjectEntity projectEntity = this.projectMapper.mapCreateDtoToEntity(createProjectDto);
+
+        projectEntity = this.projectService.create(projectEntity);
+
+        return this.projectMapper.mapToGetDto(projectEntity);
+    }
+}