CODE EXAMPLE FOR JAVASCRIPT

node js rest with flutter

var qs = require('querystring');
const Task = require("../models/task.model.js");
// Create and Save a new Task

exports.create = (req, res) => {
  console.log(req.body);
  // Validate request
  if (!req.body) {
    res.status(400).send({
      message: "Content can not be empty!"
    });
  }
  // Create a Task
  const task = new Task({
    task_name: req.body.task_name,
    task_detail: req.body.task_detail,
    date: req.body.date,
    published:req.body.published || 0
  });
  // Save Task in the database
  Task.create(task, (err, data) => {
    if (err)
      res.status(500).send({
        message:
          err.message || "Some error occurred while creating the Task."
      });
    else res.send(data);
  });
};
// Retrieve all tasks from the database (with condition).
exports.findAll = (req, res) => {
  const title = req.query.name;
  Task.getAll(title, (err, data) => {
    if (err)
      res.status(500).send({
        message:
          err.message || "Some error occurred while retrieving tasks."
      });
    else res.send(data);
  });
};
exports.findAllPublished = (req, res) => {
  Task.getAllPublished((err, data) => {
    if (err)
      res.status(500).send({
        message:
          err.message || "Some error occurred while retrieving tasks."
      });
    else res.send(data);
  });


};
// Find a single Task with a id
exports.findOne = (req, res) => {
  console.log(req.query.id);
  Task.findById(req.query.id, (err, data) => {
    if (err) {
      if (err.kind === "not_found") {
        res.status(404).send({
          message: `Not found Task with id ${req.query.id}.`
        });
      } else {
        res.status(500).send({
          message: "Error retrieving Task with id " + req.params.id
        });
      }
    } else res.send(data);
  });
};

// Update a Task identified by the id in the request
exports.update = (req, res) => {
  // Validate Request
  if (!req.body) {
    res.status(400).send({
      message: "Content can not be empty!"
    });
  }


  console.log(req.body);
  Task.updateById(
    req.query.id,
    new Task(req.body),
    (err, data) => {
      if (err) {
        if (err.kind === "not_found") {
          res.status(404).send({
            message: `Not found Tutorial with id ${req.query.id}.`
          });
        } else {
          res.status(500).send({
            message: "Error updating Tutorial with id " + req.query.id
          });
        }
      } else res.send(data);
    }
  );

};
// Delete a Task with the specified id in the request
exports.delete = (req, res) => {
  Task.remove(req.query.id, (err, data) => {
    if (err) {
      if (err.kind === "not_found") {
        res.status(404).send({
          message: `Not found Task with id ${req.query.id}.`
        });
      } else {
        res.status(500).send({
          message: "Could not delete Task with id " + req.query.id
        });
      }
    } else res.send({ message: `Task was deleted successfully!` });
  });

};
// Delete all tasks from the database.
exports.deleteAll = (req, res) => {
  Task.removeAll((err, data)=>{
    if(err){
      res.status(500).send({
        message:err.message || "Could not finish the operation"
      });

    }else{
      res.send({
        message:"Removed all task successfully"
      });
    }
  })
};