Challenge 21 - JSON and Stock Dividends
👋 Welcome Gophers! In this Go challenge, you are going to be working with JSON data and implementing a function that takes in a JSON string full of stock quotes and returns the one with the highest dividend return.
You will need to implement the HighestDividend function so that it takes in a JSON string. You will then need to somehow convert this JSON string into something you can traverse in Go using the encoding/json package.
Finally, you will need to return the string ticker for the stock that has the highest dividend.
Example
[
{"ticker": "APPL", "dividend": 0.5},
{"ticker": "MSFT", "dividend": 0.2}
]
## HighestDividend returns "APPL"
View Solution
package main
import (
"encoding/json"
"fmt"
)
type Stocks struct {
Stocks []Stocks
}
type Stock struct {
Ticker string `json:"ticker"`
Dividend float64 `json:'dividend"`
}
// HighestDividend iterates through a JSON string of stocks
// unmarshalls them into a struct and returns the Stock with
// the highest dividend
func HighestDividend(str string) string {
var ticker []Stock
if err := json.Unmarshal([]byte(str), &ticker); err != nil {
panic(err)
return ""
}
if len(ticker) == 0 {
return ""
}
highest := ticker[0]
for _, v:= range ticker {
if highest.Dividend < v.Dividend {
highest = v
}
}
return highest.Ticker
}
func main() {
fmt.Println("Stock Price AI")
stocks_json := `[
{"ticker":"APPL","dividend":0.5},
{"ticker":"GOOG","dividend":0.2},
{"ticker":"MSFT","dividend":0.3},
{"ticker":"MSFX","dividend":3}
]`
highestDividend := HighestDividend(stocks_json)
fmt.Println(highestDividend)
}
Further Reading:
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