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exchange rate data source supports requesting multi url

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MaysWind
2021-03-08 23:08:25 +08:00
parent 9c82c4fdb8
commit b8adfc66e2
4 changed files with 94 additions and 33 deletions
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pkg/api/exchange_rates.go
+55 -14
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@@ -3,12 +3,14 @@ package api
import (
"io/ioutil"
"net/http"
"sort"
"time"
"github.com/mayswind/lab/pkg/core"
"github.com/mayswind/lab/pkg/errs"
"github.com/mayswind/lab/pkg/exchangerates"
"github.com/mayswind/lab/pkg/log"
"github.com/mayswind/lab/pkg/models"
"github.com/mayswind/lab/pkg/settings"
)
@@ -34,26 +36,65 @@ func (a *ExchangeRatesApi) LatestExchangeRateHandler(c *core.Context) (interface
Timeout: time.Duration(settings.Container.Current.ExchangeRatesRequestTimeout) * time.Millisecond,
}
resp, err := client.Get(dataSource.GetRequestUrl())
urls := dataSource.GetRequestUrls()
exchangeRateResps := make([]*models.LatestExchangeRateResponse, 0, len(urls))
if err != nil {
log.ErrorfWithRequestId(c, "[exchange_rates.LatestExchangeRateHandler] failed to request latest exchange rate data for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.ErrFailedToRequestRemoteApi
for i := 0; i < len(urls); i++ {
resp, err := client.Get(urls[i])
if err != nil {
log.ErrorfWithRequestId(c, "[exchange_rates.LatestExchangeRateHandler] failed to request latest exchange rate data for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.ErrFailedToRequestRemoteApi
}
if resp.StatusCode != 200 {
log.ErrorfWithRequestId(c, "[exchange_rates.LatestExchangeRateHandler] failed to get latest exchange rate data response for user \"uid:%d\", because response code is not 200", uid)
return nil, errs.ErrFailedToRequestRemoteApi
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
exchangeRateResp, err := dataSource.Parse(c, body)
if err != nil {
log.ErrorfWithRequestId(c, "[exchange_rates.LatestExchangeRateHandler] failed to parse response for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.Or(err, errs.ErrFailedToRequestRemoteApi)
}
exchangeRateResps = append(exchangeRateResps, exchangeRateResp)
}
if resp.StatusCode != 200 {
log.ErrorfWithRequestId(c, "[exchange_rates.LatestExchangeRateHandler] failed to get latest exchange rate data response for user \"uid:%d\", because response code is not 200", uid)
return nil, errs.ErrFailedToRequestRemoteApi
lastExchangeRateResponse := exchangeRateResps[len(exchangeRateResps)-1]
allExchangeRatesMap := make(map[string]string)
for i := 0; i < len(exchangeRateResps); i++ {
exchangeRateResp := exchangeRateResps[i]
for j := 0; j < len(exchangeRateResp.ExchangeRates); j++ {
exchangeRate := exchangeRateResp.ExchangeRates[j]
allExchangeRatesMap[exchangeRate.Currency] = exchangeRate.Rate
}
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
latestExchangeRateResponse, err := dataSource.Parse(c, body)
allExchangeRatesMap[lastExchangeRateResponse.BaseCurrency] = "1"
allExchangeRates := make(models.LatestExchangeRateSlice, 0, len(allExchangeRatesMap))
if err != nil {
log.ErrorfWithRequestId(c, "[exchange_rates.LatestExchangeRateHandler] failed to parse response for user \"uid:%d\", because %s", uid, err.Error())
return nil, errs.Or(err, errs.ErrFailedToRequestRemoteApi)
for currency, rate := range allExchangeRatesMap {
allExchangeRates = append(allExchangeRates, &models.LatestExchangeRate{
Currency: currency,
Rate: rate,
})
}
return latestExchangeRateResponse, nil
sort.Sort(allExchangeRates)
finalExchangeRateResponse := &models.LatestExchangeRateResponse{
DataSource: lastExchangeRateResponse.DataSource,
ReferenceUrl: lastExchangeRateResponse.ReferenceUrl,
UpdateTime: lastExchangeRateResponse.UpdateTime,
BaseCurrency: lastExchangeRateResponse.BaseCurrency,
ExchangeRates: allExchangeRates,
}
return finalExchangeRateResponse, nil
}