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scan.go
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scan.go
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package main
import (
"encoding/json"
"fmt"
"log"
"net/http"
"os"
"time"
)
func Scan(mc *MainConfig) {
var t Ticks
re, err := http.Get(YF_SCREENER_URL)
if err != nil {
log.Fatal(err)
}
defer re.Body.Close()
switch re.StatusCode {
case 200:
var ticks []string
doc, err := goquery.NewDocumentFromReader(re.Body)
if err != nil {
log.Fatal(err)
}
doc.Find("table").Each(func(i int, tablehtml *goquery.Selection) {
tablehtml.Find("td").Each(func(i int, tablerow *goquery.Selection) {
tablerow.Find("a").Each(func(i int, td *goquery.Selection) {
ticks = append(ticks, td.Text())
})
})
})
rOut := make(chan RawStat, len(ticks))
for _, t := range ticks {
go ScanTicks(t, rOut)
}
t.Set()
for range ticks {
select {
case r := <-rOut:
t.Stats[r.Symbol] = Stat{Tick: r.Symbol, VolumePercent: r.RelativeVolume(), PreVolume: r.PreviousVolume, AvgVolume: r.AverageVolume, IexPercent: r.IexPercent}
}
}
break
case 429:
time.Sleep(1 * time.Second)
break
mc.tOut <- t
}
func ScanTicks(tick string, rOut chan<- RawStat) {
var r RawStat
re, err := http.Get(fmt.Sprintf("https://cloud.iexapis.com/stable/stock/%s/quote?token="+os.Getenv("KEY4"), tick))
if err != nil {
log.Fatal(err)
}
defer re.Body.Close()
json.NewDecoder(re.Body).Decode(&r)
rOut <- r
}
// https://api.login.yahoo.com/oauth2/request_auth?client_id=dj0yJmk9WGx0QlE0UWdCa0hKJmQ9WVdrOWNrNUhXVnBhTkhFbWNHbzlNQS0tJnM9Y29uc3VtZXJzZWNyZXQmeD01OA--&response_type=code&redirect_uri=https://yahoo.com&scope=openid%20mail-r&nonce=YihsFwGKgt3KJUh6tPs2
// https://api.login.yahoo.com/oauth2/request_auth?client_id=dj0yJmk9YWFGS3RhQjhpQXpOJmQ9WVdrOVRFWTFXRzVrTURnbWNHbzlNQT09JnM9Y29uc3VtZXJzZWNyZXQmc3Y9MCZ4PTVk&redirect_uri=https%3A%2F%2Ffinance.yahoo.com%2Fscreener%2F2e87646d-0831-4e68-9e53-b5689a4f2609&response_type=code