UsersController.java

package edu.ucsb.cs156.courses.controllers;

import edu.ucsb.cs156.courses.entities.User;

import edu.ucsb.cs156.courses.repositories.UserRepository;

import io.swagger.v3.oas.annotations.Operation;

import io.swagger.v3.oas.annotations.Parameter;

import io.swagger.v3.oas.annotations.tags.Tag;

import java.util.Arrays;

import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.data.domain.Page;

import org.springframework.data.domain.PageRequest;

import org.springframework.data.domain.Sort.Direction;

import org.springframework.security.access.prepost.PreAuthorize;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.bind.annotation.RequestParam;

import org.springframework.web.bind.annotation.RestController;

@Tag(name = "User information (admin only)")

@RequestMapping("/api/admin/users")

@RestController

  @Autowired UserRepository userRepository;

  @Operation(summary = "Get a paginated list of users")

  @PreAuthorize("hasRole('ROLE_ADMIN')")

  @GetMapping(value = "/paginated", produces = "application/json")

  public Page<User> getUsersPaginated(

      @Parameter(

              name = "page",

              description = "what page of the data",

              example = "0",

              required = true)

          @RequestParam

          int page,

      @Parameter(

              name = "pageSize",

              description = "size of each page",

              example = "10",

              required = true)

          @RequestParam

          int pageSize,

      @Parameter(

              name = "sortField",

              description = "sort field",

              example = "email",

              required = false)

          @RequestParam(defaultValue = "id")

          String sortField,

      @Parameter(

              name = "sortDirection",

              description = "sort direction",

              example = "ASC",

              required = false)

          @RequestParam(defaultValue = "ASC")

          String sortDirection) {

              "%s is not a valid sort field. Valid values are %s", sortField, allowedSortFields));

    }

              "%s is not a valid sort direction. Valid values are %s",

              sortDirection, allowedSortDirections));

    }

    }

  }

}

Mutations