added

internal/etoro/client.go

@@ -0,0 +1,95 @@
+package etoro
+
+import (
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"time"
+)
+
+const instrumentsURL = "https://api.etoro.com/metadata/instruments"
+
+// InstrumentTypeID connus sur eToro
+const (
+	TypeStock  = 5
+	TypeETF    = 10
+	TypeCrypto = 12
+	TypeIndex  = 21
+	TypeCFD    = 6
+)
+
+type Client struct {
+	http *http.Client
+}
+
+type Instrument struct {
+	InstrumentID          int    `json:"InstrumentID"`
+	InstrumentDisplayName string `json:"InstrumentDisplayName"`
+	SymbolFull            string `json:"SymbolFull"`
+	InstrumentTypeID      int    `json:"InstrumentTypeID"`
+	IsActive              bool   `json:"IsActive"`
+	StockIndustryID       int    `json:"StockIndustryID"`
+	StockExchangeID       int    `json:"StockExchangeID"`
+}
+
+func New() *Client {
+	return &Client{
+		http: &http.Client{Timeout: 30 * time.Second},
+	}
+}
+
+// FetchStocks retourne tous les instruments de type Stock actifs sur eToro.
+func (c *Client) FetchStocks() ([]Instrument, error) {
+	all, err := c.fetchAll()
+	if err != nil {
+		return nil, err
+	}
+
+	var stocks []Instrument
+	for _, inst := range all {
+		if inst.IsActive && inst.InstrumentTypeID == TypeStock {
+			stocks = append(stocks, inst)
+		}
+	}
+	return stocks, nil
+}
+
+// FetchAll retourne tous les instruments (stocks + ETFs + crypto + indices).
+func (c *Client) FetchAll() ([]Instrument, error) {
+	return c.fetchAll()
+}
+
+func (c *Client) fetchAll() ([]Instrument, error) {
+	req, err := http.NewRequest("GET", instrumentsURL, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	// Headers qui imitent le client web eToro
+	req.Header.Set("User-Agent", "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36")
+	req.Header.Set("accounttype", "Demo")
+	req.Header.Set("ApplicationIdentifier", "ReToro")
+	req.Header.Set("Version", "1.211.0")
+	req.Header.Set("Accept", "application/json")
+
+	resp, err := c.http.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("etoro: %w", err)
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode != 200 {
+		return nil, fmt.Errorf("etoro: HTTP %d", resp.StatusCode)
+	}
+
+	var instruments []Instrument
+	if err := json.NewDecoder(resp.Body).Decode(&instruments); err != nil {
+		return nil, fmt.Errorf("etoro: parse error: %w", err)
+	}
+
+	if len(instruments) == 0 {
+		return nil, fmt.Errorf("etoro: empty response — l'API a peut-être changé")
+	}
+
+	return instruments, nil
+}