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Monorepo for Tangled
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import ( "context" "net/http" "sync")
type lister interface { GetKnotMembers(ctx context.Context, host string) ([]string, error) GetRepoCollaborators(ctx context.Context, host, repoDid string) ([]string, error)}
type requestMemo struct { mu sync.Mutex entries map[string][]string}
type memoCtxKey struct{}
func WithMemo(ctx context.Context) context.Context { return context.WithValue(ctx, memoCtxKey{}, &requestMemo{entries: map[string][]string{}})}
func memoFrom(ctx context.Context) *requestMemo { memo, _ := ctx.Value(memoCtxKey{}).(*requestMemo) return memo}
func (m *requestMemo) get(key string) ([]string, bool) { m.mu.Lock() defer m.mu.Unlock() v, ok := m.entries[key] return v, ok}
func (m *requestMemo) put(key string, subjects []string) { m.mu.Lock() defer m.mu.Unlock() m.entries[key] = subjects}
func MemoMiddleware(next http.Handler) http.Handler { return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) { next.ServeHTTP(w, r.WithContext(WithMemo(r.Context()))) })}