69 lines
1.2 KiB
Go
69 lines
1.2 KiB
Go
package main
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import (
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"fmt"
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"io"
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"net/http"
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"sync"
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)
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var Urls = []string{
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"https://www.index.hr",
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"https://www.vecernji.hr",
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"https://www.jutarnji.hr",
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"https://www.jutarnji.hrxxx/",
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}
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func fetchUrl(url string) (*string, error) {
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resp, err := http.Get(url)
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if err != nil {
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return nil, err
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}
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return nil, err
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}
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bodyStr := string(body)
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return &bodyStr, nil
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}
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func main() {
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var wg sync.WaitGroup
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chMessages := make(chan string)
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chDone := make(chan bool)
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wg.Add(len(Urls))
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for _, url := range Urls {
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go func(url string) {
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defer wg.Done()
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chMessages <- fmt.Sprintf("Fetching %s...", url)
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body, err := fetchUrl(url)
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if err != nil {
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chMessages <- fmt.Sprintf("Error fetching %s. Length: %v", url, err)
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} else {
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chMessages <- fmt.Sprintf("Done fetching %s. Length: %d", url, len(*body))
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}
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}(url)
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}
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go func() {
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for msg := range chMessages {
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fmt.Println(msg)
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}
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// signal that message reader is done
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chDone <- true
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}()
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wg.Wait()
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// close messages channel to stop reading from message stream
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close(chMessages)
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// wait for chMessages reader to get done
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<-chDone
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}
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