fetch_pokemon.go

package main

import (
	"fmt"
	"time"
)

const (
	GET_MAP_DATA_URL = "https://pokevision.com/map/data/%v/%v"
)

func FetchPokemonsInRegion(lat, lon float64) ([]Pokemon, error) {
	data, err := RequestAPI(fmt.Sprintf(GET_MAP_DATA_URL, lat, lon))
	if err != nil {
		return nil, err
	}
	rawPokemons := data["pokemon"].([]interface{})
	pokemons := make([]Pokemon, len(rawPokemons))
	for index, unusableRawPokemon := range rawPokemons {
		rawPokemon := unusableRawPokemon.(map[string]interface{})
		pokemonId := int(rawPokemon["pokemonId"].(float64))
		pokemons[index] = Pokemon{
			ID: int(rawPokemon["id"].(float64)),
			ExpiresAt: time.Unix(int64(rawPokemon["expiration_time"].(float64)), 0),
			PokedexID: pokemonId,
			Latitude: rawPokemon["latitude"].(float64),
			Longitude: rawPokemon["longitude"].(float64),
		}
	}
	return pokemons, nil
}