Matthias Hinrichs
135 lines
3.9 KiB
Go
135 lines
3.9 KiB
Go
package util
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import (
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"encoding/json"
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"fmt"
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"io"
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"net/http"
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"time"
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)
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type YahooChartResponse struct {
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Chart struct {
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Result []struct {
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Timestamp []int64 `json:"timestamp"`
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Indicators struct {
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Quote []struct {
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Close []float64 `json:"close"`
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} `json:"quote"`
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} `json:"indicators"`
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} `json:"result"`
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} `json:"chart"`
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}
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func StockSearch(query string) (string, error) {
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url := fmt.Sprintf("https://query2.finance.yahoo.com/v1/finance/search?q=%s", query)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Erstellen der Anfrage: %v", err)
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}
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req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Safari/605.1.15")
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Abrufen der URL: %v", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("Fehler: HTTP Status %s", resp.Status)
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Lesen der Antwort: %v", err)
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}
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return string(body), nil
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}
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func FetchYahooFinanceData(stock string) (string, error) {
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url := fmt.Sprintf(
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"https://query2.finance.yahoo.com/v8/finance/chart/%s?range=1y&interval=1d&events=history",
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stock,
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)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Erstellen der Anfrage: %v", err)
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}
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req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Safari/605.1.15")
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Abrufen der URL: %v", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("Fehler: HTTP Status %s", resp.Status)
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Lesen der Antwort: %v", err)
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}
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return string(body), nil
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}
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func FetchYahooFinanceDataMax(stock string) (string, error) {
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url := fmt.Sprintf(
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"https://query2.finance.yahoo.com/v8/finance/chart/%s?range=max&interval=1mo&events=div",
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stock,
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)
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req, err := http.NewRequest("GET", url, nil)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Erstellen der Anfrage: %v", err)
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}
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req.Header.Set("User-Agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/15.1 Safari/605.1.15")
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client := &http.Client{}
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resp, err := client.Do(req)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Abrufen der URL: %v", err)
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}
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defer resp.Body.Close()
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("Fehler: HTTP Status %s", resp.Status)
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("Fehler beim Lesen der Antwort: %v", err)
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}
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return string(body), nil
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}
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// Neu: Daten für das Chart extrahieren
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func ExtractChartData(jsonStr string) ([]string, []float64, error) {
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var data YahooChartResponse
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err := json.Unmarshal([]byte(jsonStr), &data)
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if err != nil {
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return nil, nil, fmt.Errorf("Fehler beim Parsen des JSON: %v", err)
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}
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if len(data.Chart.Result) == 0 {
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return nil, nil, fmt.Errorf("Keine Daten gefunden")
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}
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timestamps := data.Chart.Result[0].Timestamp
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closes := data.Chart.Result[0].Indicators.Quote[0].Close
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labels := make([]string, len(timestamps))
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for i, ts := range timestamps {
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labels[i] = time.Unix(ts, 0).Format("2006-01-02")
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}
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return labels, closes, nil
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} |