mongoose-audit-trail/example/routes/employees.js

Manage Mongo Collection diff History and versions

var express = require("express");
var router = express.Router();
var Logger = require("../utils/logger.js");
var Employee = require("../models/Employee.js");
var diffHistory = require("mongoose-audit-trail");

/* GET /employees/1234 */
router.get("/:employeeId", function(req, res, next) {
  Employee.find({ employeeId: req.params.employeeId }).exec(function(
    err,
    employeeResult
  ) {
    if (err) {
      return next(err);
    }
    res.json(employeeResult[0] ? employeeResult[0] : {});
  });
});

/*
POST /employees
    Sample Payload:
    {
        "name":"Saurabh",
        "email":"mimani.saurabh@gmail.com",
        "mobile":"123234123",
        "employeeId":"934934"
    }
*/
router.post("/", function(req, res, next) {
  Employee.create(req.body, function(err, createOutput) {
    if (err) {
      return next(err);
    }
    res.json(createOutput);
  });
});

/*
PUT /employees/update/:employeeId
    Sample Payload:
    {
        "name":"Saurabh",
        "email":"mimani.saurabh@gmail.com",
        "mobile":"123234123",
        "employeeId":"934934"
    }
*/
router.put("/update/:employeeId", function(req, res, next) {
  Employee.update(
    { employeeId: req.params.employeeId },
    req.body,
    {
      new: true,
      __user: { name: "Mimani", role: "admin" },
      __reason: "Mimani updated"
    },
    function(errFind, updatedEmp) {
      if (errFind) {
        res.sendStatus(500);
        return next(errFind);
      }
      return res.json(updatedEmp);
    }
  );
});

/*
 PUT /employees/:employeeId
     Sample Payload:
     {
         "name":"Saurabh",
         "email":"mimani.saurabh@gmail.com",
         "mobile":"123234123",
         "employeeId":"934934"
     }
 */
router.put("/:employeeId", function(req, res, next) {
  Employee.find({ employeeId: req.params.employeeId }, function(
    errFind,
    postFind
  ) {
    if (errFind) {
      res.sendStatus(500);
      return next(errFind);
    }
    if (postFind && Array.isArray(postFind) && postFind.length > 0) {
      var employee = postFind[0];
      for (var key in req.body) {
        employee[key] = req.body[key];
      }
      employee.__user = "Mimani";
      employee.__reason = req.body.reason
        ? req.body.reason
        : "Mimani changed this";
      employee.save(function(err) {
        if (err) {
          Logger.error(
            "Employee update error for employeeId: " + req.params.employeeId
          );
          return next(err);
        }
        res.json(employee);
      });
    } else {
      res.sendStatus(404);
      return next("Employee Not Found");
    }
  });
});

/*
 PUT /employees/findOneAndUpdate/:employeeId
     Sample Payload:
     {
         "name":"Saurabh",
         "email":"mimani.saurabh@gmail.com",
         "mobile":"123234123",
         "employeeId":"934934"
     }
 */
router.put("/findOneAndUpdate/:employeeId", function(req, res, next) {
  Employee.findOneAndUpdate(
    { employeeId: req.params.employeeId },
    req.body,
    {
      new: true,
      __user: "Mimani",
      __reason: "Mimani updated"
    },
    function(errFind, updatedEmp) {
      if (errFind) {
        res.sendStatus(500);
        return next(errFind);
      }
      return res.json(updatedEmp);
    }
  );
});

router.get("/:employeeId/version/:version", function(req, res, next) {
  Employee.find({ employeeId: req.params.employeeId }).exec(function(
    err,
    employeeResult
  ) {
    if (err || !employeeResult || !employeeResult[0]) {
      return next(err);
    }
    diffHistory.getVersion(
      Employee,
      employeeResult[0]._id,
      req.params.version,
      function(err, oldEmployee) {
        if (err) {
          return next(err);
        }
        res.json(oldEmployee);
      }
    );
  });
});

router.get("/:id/versionbyObjectId/:version", function(req, res, next) {
  diffHistory.getVersion(Employee, req.params.id, req.params.version, function(
    err,
    oldEmployee
  ) {
    if (err) {
      return next(err);
    }
    res.json(oldEmployee);
  });
});

router.get("/:employeeId/histories", function(req, res, next) {
  Employee.find({ employeeId: req.params.employeeId }).exec(function(
    err,
    employeeResult
  ) {
    if (err || !employeeResult || !employeeResult[0]) {
      return next(err);
    }
    diffHistory.getHistories(
      "Employee",
      employeeResult[0]._id,
      ["mobile"],
      function(err, histories) {
        if (err) {
          return next(err);
        }
        res.json(histories);
      }
    );
  });
});

/* DELETE /employees/:employeeId */
router.delete("/:employeeId", function(req, res, next) {
  Employee.findOne({ employeeId: req.params.employeeId }, function(
    err,
    employee
  ) {
    if (err || !employee) {
      return next(err);
    }
    employee.remove(function(err) {
      if (err) {
        return next(err);
      }
      var response = {
        employeeId: req.params.employeeId,
        entryDeleted: true
      };
      res.json(response);
    });
  });
});

module.exports = router;