nginx-proxy-manager/backend/internal/api/middleware/expansion.go

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package middleware
import (
"context"
"net/http"
"strings"
c "npm/internal/api/context"
)
// Expansion will determine whether the request should have objects expanded
// with ?expand=1 or ?expand=true
func Expansion(next http.Handler) http.Handler {
return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
expandStr := r.URL.Query().Get("expand")
if expandStr != "" {
ctx := r.Context()
ctx = context.WithValue(ctx, c.ExpansionCtxKey, strings.Split(expandStr, ","))
next.ServeHTTP(w, r.WithContext(ctx))
} else {
next.ServeHTTP(w, r)
}
})
}