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package main
import (
"fmt"
"net/http"
"os"
"strings"
"golang.org/x/net/html"
)
func MapFrom(attrs []html.Attribute) map[string]string {
m := map[string]string{}
for _, attr := range attrs {
m[attr.Key] = attr.Val
}
return m
}
func Visit(n *html.Node) {
if n.Type == html.ElementNode && n.Data == "fin-streamer" {
m := MapFrom(n.Attr)
if m["data-field"] != "" && strings.Contains(m["data-field"], "Price") {
fmt.Printf("%v: %s\n", m["data-symbol"], m["value"])
}
}
for c := n.FirstChild; c != nil; c = c.NextSibling {
Visit(c)
}
}
func main() {
response, err1 := http.Get("https://finance.yahoo.com/quote/MSFT/")
if err1 != nil {
os.Exit(1)
}
doc, err := html.Parse(response.Body)
if err != nil {
os.Exit(2)
}
Visit(doc)
}
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