Const
Maximum UTF-8 byte length of a publish header name. 255, not 256: an AMQP header-table key is a short string, so RabbitMQ cannot carry a longer one, and the bound is portable — a name passes on every broker or on none.
0.9.0
Maximum UTF-8 byte length of a publish header name. 255, not 256: an AMQP header-table key is a short string, so RabbitMQ cannot carry a longer one, and the bound is portable — a name passes on every broker or on none.