// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License. You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package mqclient

// Message is the interface that provides operations of a consumer
type Message interface {
	// Topic get the topic from which this message originated from
	Topic() string

	// Properties are application defined key/value pairs that will be attached to the message.
	// Return the properties attached to the message.
	Properties() map[string]string

	// Payload get the payload of the message
	Payload() []byte

	// ID get the unique message ID associated with this message.
	// The message id can be used to univocally refer to a message without having the keep the entire payload in memory.
	ID() MessageID
}