Filtering data using Mongoose to send specific information

Having a bit of code here

// Script for retrieving pokedex data
app.get("/pokedex", function (req, res) {
    Pokemon.find(function (err, pokemon) {
        if (err) {
            console.log(err);
        } else {
            console.log(pokemon);
            res.render("pokedex", { pokemon: pokemon });
        }
    });
});

The above code successfully sends the data to the frontend and logs it correctly. However, when trying to add

{ information: { primaryType: "Grass" } },
before the callback, no data is sent. Instead, only empty arrays are logged, even though I'm attempting to filter the data.

I am utilizing JS, Node, Express, and EJS for this task. Any suggestions on alternative methods for filtering the data would be appreciated.

Model

[
  {
    information: {
      name: 'Bulbasaur',
      dexNumber: 1,
      primaryType: 'Grass',
      secondaryType: 'Poison',
      description: 'There is a plant seed on its back right from the day this Pokémon is born. The seed slowly grows larger.',
      devolvedForm: null,
      evolvedForm: 'Ivysaur'
    },
    stats: {
      health: 45,
      attack: 49,
      specialAttack: 65,
      defense: 49,
      specialDefense: 65,
      speed: 45
    },
    _id: 609cdab515102582ccf4e743,
    __v: 0
  },

Answer №1

To handle this scenario, it is necessary to employ dot notation for filtering:

Utilize the following query syntax: Pokemon.find({ "information.primaryType": "Grass" }...

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