23 lines
597 B
Go
23 lines
597 B
Go
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package httpmw
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import (
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"net/http"
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"code.nochebuena.dev/go/logz"
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)
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// RequestID injects a unique request ID into the context (via logz.WithRequestID)
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// and the X-Request-ID response header.
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// generator is typically uuid.NewString.
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func RequestID(generator func() string) func(http.Handler) http.Handler {
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return func(next http.Handler) http.Handler {
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return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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id := generator()
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ctx := logz.WithRequestID(r.Context(), id)
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r = r.WithContext(ctx)
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w.Header().Set("X-Request-ID", id)
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next.ServeHTTP(w, r)
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})
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}
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}
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