Dependency Block Diagram

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• Error message : MongoServerError: bad auth :Authentication failed

  What is the reason behind this error? this code I am using to connect to DB.

  const uri =`mongodb+srv://${process.env.DB_USER}:${process.env.DB_PASSWORD}@cluster0.xft2s.mongodb.net/myFirstDatabase?retryWrites=true&w=majority`;
  
• In Mongo, If a document I'm saving "Prateek" then I don't want on the next create operation even the "prateek" or "praTEEK", etc is saved

  //** If I'm adding a new document with the name: "India", then I don't want that the DB allow another name with the name: "INDIA", "india", "indIA", etc. I'm new and learning, help would be great!!**

  // Controller

  var Dinosaur = require('../models/dinosaurs');
  
  //addDino
  module.exports.addDino = (req, res) => {
      var name = req.body.name;
      var type = req.body.type;
      var height = req.body.height;
      var weight = req.body.weight;
      var Period = req.body.Period;
  
      req.checkBody('name', 'Name is required').notEmpty();
  
      var errors = req.validationErrors();
      if (errors)
          return res.status(400).send({
              message: 'Name is Required'
          });
      else {
          let newDino = {
              name: name,
              type: type,
              height: height,
              weight: weight,
              Period: Period
          }
          Dinosaur.addDino(newDino, (err, result) => {
              if (err) {
                  if (err.name) return res.status(409).send({
                      message: name + ' Already Exist'
                  });
                  else if (err.url) return res.json({ status: false, error: { url: "Url already exist" }, message: err.url });
                  else return res.json(err, "Server Error");
              }
              else {
                  return res.status(200).send({
                      message: "Done"
                  });
              }
          });
      }
  }
  

  // Model

  var mongoose = require('mongoose');
  
  //dinosaur schema
  var DinosaurSchema = mongoose.Schema({
      name: {
          type: String,
          unique: true
      },
      type: {
          type: String
      },
      height: {
          type: Number
      },
      weight: {
          type: Number
      },
      Period: {
          type: String
      }
  });
  
  var Dinosaur = mongoose.model('dinosaur', DinosaurSchema);
  
  //add
  module.exports.addDino = (query, callback) => {
      Dinosaur.create(query, callback);
  }
  

  // GetAll, Already Created a new document with the name "Brachiosaurus"

  

  // > Create, a new create with the first letter lower case "brachiosaurus", Don't want it to be pushed.

  //Get All, Got pushed.
• i am trying to run the node of ganache but getting this error

  I am trying to run the node of ganache but getting this error.please resolve my problem.
• A fool-proof tsup config for a React component library

  I've never published an NPM package before. All these details to generate a package seem way too complicated to my level. The only tool, that was beginner friendly, that I could find is create-react-library which recommended to switch to tsup instead.

  I'm asking here to know if there's a batteries-included, most-cases-met, setup for tsup or any other tool of your recommendation for this kind of project (and I think this is a common scenario):

  • A React Project
  • Typed with Typescript
  • Tested with Jest
  • No dependencies
  • Exports React components
  • Should be public on NPM
• Yarn start run normally but browser not open

  In the terminal:

  yarn start
  

  The response is:

  yarn run v1.22.18
  $ react-scripts start
  Done in 0.15s.
  

  Nothing happens, no browser is opened

  Other projects in the same machine works fine, with the same Node version and NPM version.
• Can not run npm command, instead getting something about Elasticsearch

  Does someone know what is going on? I have never before worked with node.js and npm, just needed to run some terminal commands and for every command i try i get the following ->

  Usage: node [OPTIONS] COMMAND [ARGS]...

  Implementation of Cluster Nodes APIs of Elasticsearch

  Options: --help Show this message and exit.

  Commands: info The cluster nodes info API allows to retrieve one or more (or all) of the cluster nodes information stats The cluster nodes stats API allows to retrieve one or more (or all) of the cluster nodes statistics.