68 lines
1.3 KiB
Go
68 lines
1.3 KiB
Go
|
package common
|
||
|
|
|
||
|
|
import (
|
||
|
|
"encoding/json"
|
||
|
|
"errors"
|
||
|
|
"fmt"
|
||
|
|
"github.com/IBM/sarama"
|
||
|
|
"io"
|
||
|
|
"log"
|
||
|
|
"net/http"
|
||
|
|
)
|
||
|
|
|
||
|
|
type YaHuRes struct {
|
||
|
|
Rate float64
|
||
|
|
}
|
||
|
|
|
||
|
|
func GetExchangeRate(nowCurrency, targetCurrency string) (float64, error) {
|
||
|
|
|
||
|
|
res, err := http.Get("http://www.google.com?now=" + nowCurrency + "&targetCurrency=" + targetCurrency)
|
||
|
|
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
|
||
|
|
body, err := io.ReadAll(res.Body)
|
||
|
|
res.Body.Close()
|
||
|
|
|
||
|
|
if res.StatusCode != 200 {
|
||
|
|
log.Fatalf("Response failed with status code: %d and\nbody: %s\n", res.StatusCode, body)
|
||
|
|
return 0, errors.New(fmt.Sprintf("Response failed with status code: %d and\nbody: %s\n", res.StatusCode, body))
|
||
|
|
}
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
|
||
|
|
var yahuRes YaHuRes
|
||
|
|
err = json.Unmarshal(body, &yahuRes)
|
||
|
|
|
||
|
|
if err != nil {
|
||
|
|
return 0, err
|
||
|
|
}
|
||
|
|
|
||
|
|
return yahuRes.Rate, err
|
||
|
|
|
||
|
|
}
|
||
|
|
|
||
|
|
func SendKafka(key string, info string) error {
|
||
|
|
config := sarama.NewConfig()
|
||
|
|
config.Producer.RequiredAcks = sarama.WaitForAll
|
||
|
|
config.Producer.Retry.Max = 5
|
||
|
|
config.Producer.Return.Successes = true
|
||
|
|
|
||
|
|
producer, err := sarama.NewSyncProducer([]string{"localhost:9092"}, config)
|
||
|
|
if err != nil {
|
||
|
|
fmt.Println("Failed to create producer:", err)
|
||
|
|
return err
|
||
|
|
}
|
||
|
|
|
||
|
|
defer producer.Close()
|
||
|
|
|
||
|
|
message := &sarama.ProducerMessage{
|
||
|
|
Topic: key,
|
||
|
|
Value: sarama.StringEncoder(info),
|
||
|
|
}
|
||
|
|
_, _, err = producer.SendMessage(message)
|
||
|
|
return err
|
||
|
|
}
|