PokéAPI Query Filter

This challenge involves extending the functionality of the PokéAPI. This API lets us access an extensive list and description of all Pokémon that exist, along with other Pokémon game related information. The functionality of the API is limited to either querying a Pokémon by name or listing the whole database with pagination.

The purpose of the challenge is to create a tool that allows us to query the API and filter Pokémon that share a set of properties by utilizing the available API features, essentially creating a better querying tool for the API. To accomplish this we will use streams to efficiently handle the API data while providing results in real time.

Description

The CLI tool receives a single command pokemon followed by some optional parameters:

• verbose: For debugging purposes, log every step of the program.
• ability: a list of ability names.
• types: a list of pokémon types.
• height: the height of a pokémon.
• weight: the weight of a pokémon.

The height and weight parameters are integers, and they can be queried with a boolean expression (i.e. --height >= 12):

If no parameter are specified, the app will return all existing pokémon.

For example, the following command:

./pokeAPI pokemon --types electric --height >=10

will return all Pokémon which types include "electric" and has a height of at least 10.

Getting started

• Make sure you have Node installed, preferably at least version 12.x.x.
• Install the dependencies npm i or yarn.
• Run the project, you should see a description of the CLI inputs.
• Input parameters are already parsed, you can find the code in args-parser.js.