44 lines
1.1 KiB
Go
44 lines
1.1 KiB
Go
package rest
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import (
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"errors"
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"fmt"
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"log"
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"net/http"
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"net/url"
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"runtime"
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"strings"
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)
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// SendErrorJSON sends {error: msg} with error code and logging error and caller
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func SendErrorJSON(w http.ResponseWriter, r *http.Request, code int, err error, msg string) {
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log.Printf("[DEBUG] %s", errDetailsMsg(r, code, err, msg))
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w.WriteHeader(code)
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RenderJSON(w, r, JSON{"error": msg})
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}
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func errDetailsMsg(r *http.Request, code int, err error, msg string) string {
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q := r.URL.String()
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if qun, e := url.QueryUnescape(q); e == nil {
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q = qun
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}
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srcFileInfo := ""
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if pc, file, line, ok := runtime.Caller(2); ok {
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fnameElems := strings.Split(file, "/")
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funcNameElems := strings.Split(runtime.FuncForPC(pc).Name(), "/")
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srcFileInfo = fmt.Sprintf(" [caused by %s:%d %s]", strings.Join(fnameElems[len(fnameElems)-3:], "/"),
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line, funcNameElems[len(funcNameElems)-1])
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}
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remoteIP := r.RemoteAddr
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if pos := strings.Index(remoteIP, ":"); pos >= 0 {
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remoteIP = remoteIP[:pos]
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}
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if err == nil {
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err = errors.New("no error")
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}
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return fmt.Sprintf("%s - %v - %d - %s - %s%s", msg, err, code, remoteIP, q, srcFileInfo)
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}
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