Failed to finish boilerplate-project-exercise-tracker

I’m working on Back End Development and APIs.
But the section of exercise tracker I have failed to pass last two tasks(points) in order to complete.

  1. The date property of any object in the log array that is returned from GET /api/users/:id/logs should be a string… Use the dateString format of the Date API.
  2. You can add from , to and limit parameters to a GET /api/users/:_id/logs request to retrieve part of the log of any user. from and to are dates in yyyy-mm-dd format. limit is an integer of how many logs to send back.
    I’m waiting for your help in order to win this certificate.


const express=require("express");
const app = express()
const cors = require('cors')
const mongoose = require("mongoose")
const bodyParser = require("body-parser")

const uri = "";
mongoose.connect(uri, { useNewUrlParser: true, useUnifiedTopology: true });
app.get('/', (req, res) => {
  res.sendFile(__dirname + '/views/index.html')
let schema = new mongoose.Schema({
  username: String,
   exercices: [
        description: { type: String },
        duration: { type: Number },
        date: { type: String, required: false }
let Users = mongoose.model("Users", schema)
const defaultDate = () => new Date().toISOString().slice(0, 10)"/api/users", (req,res) => {
  let user = new Users({
    username: req.body.username
  }),data) => {
    if(err) return console.log(err)
    console.log("User saved successfully")

app.get("/api/users", (req,res) => {
 Users.find({username: /\w/},(err,data) => {
   if(err) return console.log(err)
})"/api/users/:_id/exercises", (req,res) => {
 const userId = req.params._id
let exercises = {
  description: req.body.description,
  duration: Number(req.body.duration),
  date: || defaultDate()
    userId, // find user by _id
    {$push: { exercices: exercises } }, // add exObj to exercices[]
    {new: true},
     (err, data) => {
      if(err) return console.log(err)
      let returnObj = {
        username: data.username,
        description: exercises.description,
        duration: exercises.duration,
       _id: userId,
        date: new Date(


app.get("/api/users/:_id/logs", (req,res) => {
const userId = req.params._id;
Users.findById(userId, (err,data) => {
 if(err) return console.log(err)
 let user = new Users({
   username: data.username,
   exercices: [
     new Date(
const listener = app.listen(process.env.PORT || 3000, () => {
  console.log('Your app is listening on port ' + listener.address().port)

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/95.0.4638.69 Safari/537.36

Challenge: Exercise Tracker

Link to the challenge:

It would probably be more helpful if you posted a link to a live version on Replit.

BTW, you have posted your connection string with the name and password (not sure if it’s a placeholder or real).

In general, you do not want to post that as it is sensitive information that can be misused. But I guess when asking for help and if you remember to change it again later (new password) it isn’t the end of the world. Just never expose such information for production code as that would be really bad.

Change “Date().toISOString().slice(0, 10)” to simply
“Date().toDateString()” No need to use slice. With this your first test can be passed for the other one I’m not sure myself I’m still working on it

This modification saved me on the second last task. Thanks for your help. Waiting for the last one to get my certificate. Waiting …

This approach worked for me. Thanks

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