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package ibd
import (
"context"
"encoding/json"
"errors"
"io"
"log/slog"
"net/http"
"net/url"
"strconv"
"github.com/ansg191/ibd-trader-backend/internal/database"
)
const ibd50Url = "https://research.investors.com/Services/SiteAjaxService.asmx/GetIBD50?sortcolumn1=%22ibd100rank%22&sortOrder1=%22asc%22&sortcolumn2=%22%22&sortOrder2=%22ASC%22"
// GetIBD50 returns the IBD50 list.
func (c *Client) GetIBD50(ctx context.Context) ([]*Stock, error) {
// We cannot use the scraper here because scrapfly does not support
// Content-Type in GET requests.
req, err := http.NewRequestWithContext(ctx, http.MethodGet, ibd50Url, nil)
if err != nil {
return nil, err
}
cookieId, cookie, err := c.getCookie(ctx, nil)
if err != nil {
return nil, err
}
req.AddCookie(cookie)
req.Header.Add("content-type", "application/json; charset=utf-8")
// Add browser-emulating headers
req.Header.Add("accept", "*/*")
req.Header.Add("accept-language", "en-US,en;q=0.9")
req.Header.Add("newrelic", "eyJ2IjpbMCwxXSwiZCI6eyJ0eSI6IkJyb3dzZXIiLCJhYyI6IjMzOTYxMDYiLCJhcCI6IjEzODU5ODMwMDEiLCJpZCI6IjM1Zjk5NmM2MzNjYTViMWYiLCJ0ciI6IjM3ZmRhZmJlOGY2YjhmYTMwYWMzOTkzOGNlMmM0OWMxIiwidGkiOjE3MjIyNzg0NTk3MjUsInRrIjoiMTAyMjY4MSJ9fQ==")
req.Header.Add("priority", "u=1, i")
req.Header.Add("referer", "https://research.investors.com/stock-lists/ibd-50/")
req.Header.Add("sec-ch-ua", "\"Not/A)Brand\";v=\"8\", \"Chromium\";v=\"126\", \"Google Chrome\";v=\"126\"")
req.Header.Add("sec-ch-ua-mobile", "?0")
req.Header.Add("sec-ch-ua-platform", "\"macOS\"")
req.Header.Add("sec-fetch-dest", "empty")
req.Header.Add("sec-fetch-mode", "cors")
req.Header.Add("sec-fetch-site", "same-origin")
req.Header.Add("traceparent", "00-37fdafbe8f6b8fa30ac39938ce2c49c1-35f996c633ca5b1f-01")
req.Header.Add("tracestate", "1022681@nr=0-1-3396106-1385983001-35f996c633ca5b1f----1722278459725")
req.Header.Add("user-agent", "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36")
req.Header.Add("x-newrelic-id", "VwUOV1dTDhABV1FRBgQOVVUF")
req.Header.Add("x-requested-with", "XMLHttpRequest")
resp, err := c.Do(req)
if err != nil {
return nil, err
}
defer func(Body io.ReadCloser) {
_ = Body.Close()
}(resp.Body)
var ibd50Resp getIBD50Response
if err = json.NewDecoder(resp.Body).Decode(&ibd50Resp); err != nil {
return nil, err
}
// If there are less than 10 stocks in the IBD50 list, it's likely that authentication failed.
if len(ibd50Resp.D.ETablesDataList) < 10 {
// Report cookie failure to DB
if err = database.ReportCookieFailure(ctx, c.db, cookieId); err != nil {
slog.Error("Failed to report cookie failure", "error", err)
}
return nil, errors.New("failed to get IBD50 list")
}
return ibd50Resp.ToStockList(), nil
}
type Stock struct {
Rank int64
Symbol string
Name string
QuoteURL *url.URL
}
type getIBD50Response struct {
D struct {
Type *string `json:"__type"`
ETablesDataList []struct {
Rank string `json:"Rank"`
Symbol string `json:"Symbol"`
CompanyName string `json:"CompanyName"`
CompRating *string `json:"CompRating"`
EPSRank *string `json:"EPSRank"`
RelSt *string `json:"RelSt"`
GrpStr *string `json:"GrpStr"`
Smr *string `json:"Smr"`
AccDis *string `json:"AccDis"`
SponRating *string `json:"SponRating"`
Price *string `json:"Price"`
PriceClose *string `json:"PriceClose"`
PriceChange *string `json:"PriceChange"`
PricePerChange *string `json:"PricePerChange"`
VolPerChange *string `json:"VolPerChange"`
DailyVol *string `json:"DailyVol"`
WeekHigh52 *string `json:"WeekHigh52"`
PerOffHigh *string `json:"PerOffHigh"`
PERatio *string `json:"PERatio"`
DivYield *string `json:"DivYield"`
LastQtrSalesPerChg *string `json:"LastQtrSalesPerChg"`
LastQtrEpsPerChg *string `json:"LastQtrEpsPerChg"`
ConsecQtrEpsGrt15 *string `json:"ConsecQtrEpsGrt15"`
CurQtrEpsEstPerChg *string `json:"CurQtrEpsEstPerChg"`
CurYrEpsEstPerChg *string `json:"CurYrEpsEstPerChg"`
PretaxMargin *string `json:"PretaxMargin"`
ROE *string `json:"ROE"`
MgmtOwnsPer *string `json:"MgmtOwnsPer"`
QuoteUrl *string `json:"QuoteUrl"`
StockCheckupUrl *string `json:"StockCheckupUrl"`
MarketsmithUrl *string `json:"MarketsmithUrl"`
LeaderboardUrl *string `json:"LeaderboardUrl"`
ChartAnalysisUrl *string `json:"ChartAnalysisUrl"`
Ibd100NewEntryFlag *string `json:"Ibd100NewEntryFlag"`
Ibd100UpInRankFlag *string `json:"Ibd100UpInRankFlag"`
IbdBigCap20NewEntryFlag *string `json:"IbdBigCap20NewEntryFlag"`
CompDesc *string `json:"CompDesc"`
NumberFunds *string `json:"NumberFunds"`
GlobalRank *string `json:"GlobalRank"`
EPSPriorQtr *string `json:"EPSPriorQtr"`
QtrsFundIncrease *string `json:"QtrsFundIncrease"`
} `json:"ETablesDataList"`
IBD50PdfUrl *string `json:"IBD50PdfUrl"`
CAP20PdfUrl *string `json:"CAP20PdfUrl"`
IBD50Date *string `json:"IBD50Date"`
CAP20Date *string `json:"CAP20Date"`
UpdatedDate *string `json:"UpdatedDate"`
GetAllFlags *string `json:"getAllFlags"`
Flag *int `json:"flag"`
Message *string `json:"Message"`
PaywallDesktopMarkup *string `json:"PaywallDesktopMarkup"`
PaywallMobileMarkup *string `json:"PaywallMobileMarkup"`
} `json:"d"`
}
func (r getIBD50Response) ToStockList() (ibd []*Stock) {
ibd = make([]*Stock, 0, len(r.D.ETablesDataList))
for _, data := range r.D.ETablesDataList {
rank, err := strconv.ParseInt(data.Rank, 10, 64)
if err != nil {
slog.Error(
"Failed to parse Rank",
"error", err,
"rank", data.Rank,
"symbol", data.Symbol,
"name", data.CompanyName,
)
continue
}
var quoteUrl *url.URL
if data.QuoteUrl != nil {
quoteUrl, err = url.Parse(*data.QuoteUrl)
if err != nil {
slog.Error(
"Failed to parse QuoteUrl",
"error", err,
"quoteUrl", *data.QuoteUrl,
"rank", data.Rank,
"symbol", data.Symbol,
"name", data.CompanyName,
)
}
}
ibd = append(ibd, &Stock{
Rank: rank,
Symbol: data.Symbol,
Name: data.CompanyName,
QuoteURL: quoteUrl,
})
}
return
}
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