I have a code as below to scrape the specific cell value from html table. You can go to https://www.haremaltin.com/altin-fiyatlari website and search "satis__ATA_ESKI" on inspect mode to see that value. I am beginner on golang and did my best but unfortunately I couldn't get that value. Is there anybody to help me? Btw they don't have a community api. And one more thing, add time.sleep to wait for page to be loaded. If it returns "-" it is because page wasn't be loaded yet
package main
import (
"fmt"
"log"
"net/http"
"github.com/PuerkitoBio/goquery"
)
func main() {
url := "https://www.haremaltin.com/altin-fiyatlari"
resp, err := http.Get(url)
if err != nil {
log.Fatal(err)
}
defer resp.Body.Close()
if resp.StatusCode != 200 {
log.Fatalf("failed to fetch data: %d %s", resp.StatusCode, resp.Status)
}
doc, err := goquery.NewDocumentFromReader(resp.Body)
if err != nil {
log.Fatal(err)
}
doc.Find("tr__ATA_ESKI tr").Each(func(j int, tr *goquery.Selection) {
data := []string{}
tr.Find("td").Each(func(ix int, td *goquery.Selection) {
e := td.Text()
data = append(data, e)
fmt.Println(data)
})
})
}
SOLUTION:
You can see the answer below and if you want you can check 
to see why this kind of solution is used
Btw we can use iteration to fetch the specific value from map. I have a code for this too. But if you have any easier method just comment please
for _, v := range data { // we need value part of the map
m, ok := v.(map[string]interface{}) // we need the convert the map
// into interface for iteration
if !ok {
fmt.Printf("Error %T", v)
}
for k, l := range m {
if k == "ATA_ESKI"{ // the value we want is inside of this map
a, ok := l.(map[string]interface{}) // interface convert again
if !ok {
fmt.Printf("Error %T", v)
}
for b,c := range a{
if b == "satis"{ // the value we want
fmt.Println("Price is", c)
}
}
}
}
}
Full solution with iteration below:
package main
import (
"encoding/json"
"fmt"
"io/ioutil"
"net/http"
"strings"
)
func main() {
fecthData()
}
func fecthData() (map[string]interface{}, error) {
body := strings.NewReader("dil_kodu=tr")
req, err := http.NewRequest("POST",
"https://www.haremaltin.com/dashboard/ajax/doviz", body)
if err != nil {
// handle err
return nil, err
}
req.Header.Set("X-Requested-With", "XMLHttpRequest")
resp, err := http.DefaultClient.Do(req)
if err != nil {
// handle err
return nil, err
}
defer resp.Body.Close()
jsonData, err := ioutil.ReadAll(resp.Body)
if err != nil {
panic(err)
return nil, err
}
var data map[string]interface{}
err = json.Unmarshal(jsonData, &data)
if err != nil {
return nil, err
}
for _, v := range data {
m, ok := v.(map[string]interface{})
if !ok {
fmt.Printf("Error %T", v)
}
for k, l := range m {
if k == "ATA_ESKI" {
a, ok := l.(map[string]interface{})
if !ok {
fmt.Printf("Error %T", v)
}
for b, c := range a {
if b == "satis" {
fmt.Println("Price", c)
}
}
}
}
}
return data, nil
}
