40 lines
720 B
Go
40 lines
720 B
Go
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package middleware
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import (
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"context"
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"net/http"
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"github.com/google/uuid"
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)
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type ctxKeyRequestID int
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const (
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RequestIDKey ctxKeyRequestID = 0
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RequestIDHeader string = "X-Request-ID"
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)
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func RequestID(handler http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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requestID := r.Header.Get(RequestIDHeader)
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if requestID == "" {
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requestID = uuid.NewString()
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}
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handler.ServeHTTP(w, r.WithContext(context.WithValue(r.Context(), RequestIDKey, requestID)))
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})
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}
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func GetRequestID(r *http.Request) string {
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rid := r.Context().Value(RequestIDKey)
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if rid == nil {
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return ""
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}
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srid, ok := rid.(string)
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if !ok {
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return ""
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}
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return srid
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}
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