67 lines
1.2 KiB
Go
67 lines
1.2 KiB
Go
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package helper
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import (
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"context"
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"log"
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"net"
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"net/http"
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"time"
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)
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func CheckDBExists(endpoint string) bool {
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const ConnectMaxWaitTime = 30 * time.Second
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const RequestMaxWaitTime = 60 * time.Second
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client := http.Client{
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Transport: &http.Transport{
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DialContext: (&net.Dialer{
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Timeout: ConnectMaxWaitTime,
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}).DialContext,
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},
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}
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ctx, cancel := context.WithTimeout(context.Background(), RequestMaxWaitTime)
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defer cancel()
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req, err := http.NewRequestWithContext(ctx, "GET", endpoint, nil)
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req.Proto = "HTTP/1.0"
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if err != nil {
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log.Println(err.Error())
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return false
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}
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q := req.URL.Query()
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req.URL.RawQuery = q.Encode()
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req.Header.Set("Connection", "close")
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req.Close = true
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client.CloseIdleConnections()
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response, err := client.Do(req)
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// handle timeout
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if e, ok := err.(net.Error); ok && e.Timeout() {
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if response != nil {
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response.Body.Close()
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}
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log.Println(err.Error())
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return false
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} else if err != nil {
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if response != nil {
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response.Body.Close()
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}
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log.Println(err.Error())
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return false
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}
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if response != nil {
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response.Body.Close()
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}
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if response.StatusCode == http.StatusOK {
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return true
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} else {
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return false
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}
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}
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