Aleksey Shakhmatov
49be6f8a7e
Introduces internal/requestid package with shared context key to avoid circular imports between server and middleware packages. Server's RequestID middleware now uses the shared key. Client middleware picks up the ID from context and sets X-Request-Id on outgoing requests. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
24 lines
723 B
Go
24 lines
723 B
Go
package middleware
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import (
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"net/http"
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"git.codelab.vc/pkg/httpx/internal/requestid"
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)
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// RequestID returns a middleware that propagates the request ID from the
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// request context to the outgoing X-Request-Id header. This pairs with
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// the server.RequestID middleware: the server stores the ID in the context,
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// and the client middleware forwards it to downstream services.
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func RequestID() Middleware {
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return func(next http.RoundTripper) http.RoundTripper {
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return RoundTripperFunc(func(req *http.Request) (*http.Response, error) {
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if id := requestid.FromContext(req.Context()); id != "" {
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req = req.Clone(req.Context())
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req.Header.Set("X-Request-Id", id)
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}
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return next.RoundTrip(req)
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})
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}
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}
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