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January 25, 2021 10:42
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# API | |
{ | |
"success":true, | |
"data":[{...,...}], | |
"error": null, | |
} | |
# Interface StocksProps | |
interface StocksProps { | |
id: number; | |
name: string; | |
ticker: string; | |
minimumValue: number; | |
profitability: number; | |
favorited: boolean; | |
} | |
# States | |
const [stocks, setStocks] = useState<StocksProps[]>([]); | |
const [favoriteStock, setFavoriteStock] = useState(false); | |
# Chamada a API | |
api.get('stocks').then((response) => { | |
const stocksDataOrdered = response.data.data.sort( | |
(stockA: StocksProps, stockB: StocksProps) => | |
stockA.name.localeCompare(stockB.name) | |
).map((stock: StocksProps ) => { | |
return { | |
...stock, | |
favorited: false | |
} | |
}) | |
setStocks(stocksDataOrdered); | |
# handleStockAsFavorite | |
const handleStockAsFavorite = useCallback((id: number) => { | |
const stockToChangeTheFavoriteValue = stocks.filter(element => element.id === id); | |
if (stockToChangeTheFavoriteValue[0].favorited === false) { | |
setFavoriteStock(true); | |
return stockToChangeTheFavoriteValue[0].favorited = true; | |
} else { | |
setFavoriteStock(false); | |
return stockToChangeTheFavoriteValue[0].favorited = false; | |
} | |
<FavoriteButton onPress={() => handleStockAsFavorite(stock.id)}> | |
<FavoriteImage source={stock.favorited ? favoritedImg : unfavoriteImg} /> | |
</FavoriteButton> |
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