esp-idf/components/aws_iot/include/aws_iot_config.h

/*
 * Copyright 2010-2015 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License").
 * You may not use this file except in compliance with the License.
 * A copy of the License is located at
 *
 *  http://aws.amazon.com/apache2.0
 *
 * or in the "license" file accompanying this file. This file 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.
 */

/**
 * @file aws_iot_config.h
 * @brief AWS IoT specific configuration file
 */

#ifndef _AWS_IOT_CONFIG_H_
#define _AWS_IOT_CONFIG_H_

#include "aws_iot_log.h"

// This configuration macro needs to be available globally to enable threading
#define _ENABLE_THREAD_SUPPORT_

// These values are defined in the menuconfig of the AWS IoT component.
// However, you can override these constants from your own code.
#define AWS_IOT_MQTT_HOST              CONFIG_AWS_IOT_MQTT_HOST ///< Customer specific MQTT HOST. The same will be used for Thing Shadow
#define AWS_IOT_MQTT_PORT              CONFIG_AWS_IOT_MQTT_PORT ///< default port for MQTT/S

// These values are defaults and are used for ShadowConnectParametersDefault.
// You should override them from your own code.
#define AWS_IOT_MQTT_CLIENT_ID         "ESP32" ///< MQTT client ID should be unique for every device
#define AWS_IOT_MY_THING_NAME          "ESP32" ///< Thing Name of the Shadow this device is associated with

// MQTT PubSub
#define AWS_IOT_MQTT_TX_BUF_LEN 512 ///< Any time a message is sent out through the MQTT layer. The message is copied into this buffer anytime a publish is done. This will also be used in the case of Thing Shadow
#define AWS_IOT_MQTT_RX_BUF_LEN 512 ///< Any message that comes into the device should be less than this buffer size. If a received message is bigger than this buffer size the message will be dropped.
#define AWS_IOT_MQTT_NUM_SUBSCRIBE_HANDLERS 5 ///< Maximum number of topic filters the MQTT client can handle at any given time. This should be increased appropriately when using Thing Shadow

// Thing Shadow specific configs
#define SHADOW_MAX_SIZE_OF_RX_BUFFER (AWS_IOT_MQTT_RX_BUF_LEN + 1) ///< Maximum size of the SHADOW buffer to store the received Shadow message
#define MAX_SIZE_OF_UNIQUE_CLIENT_ID_BYTES 80  ///< Maximum size of the Unique Client Id. For More info on the Client Id refer \ref response "Acknowledgments"
#define MAX_SIZE_CLIENT_ID_WITH_SEQUENCE (MAX_SIZE_OF_UNIQUE_CLIENT_ID_BYTES + 10) ///< This is size of the extra sequence number that will be appended to the Unique client Id
#define MAX_SIZE_CLIENT_TOKEN_CLIENT_SEQUENCE (MAX_SIZE_CLIENT_ID_WITH_SEQUENCE + 20) ///< This is size of the the total clientToken key and value pair in the JSON
#define MAX_ACKS_TO_COMEIN_AT_ANY_GIVEN_TIME 10 ///< At Any given time we will wait for this many responses. This will correlate to the rate at which the shadow actions are requested
#define MAX_THINGNAME_HANDLED_AT_ANY_GIVEN_TIME 10 ///< We could perform shadow action on any thing Name and this is maximum Thing Names we can act on at any given time
#define MAX_JSON_TOKEN_EXPECTED 120 ///< These are the max tokens that is expected to be in the Shadow JSON document. Include the metadata that gets published
#define MAX_SHADOW_TOPIC_LENGTH_WITHOUT_THINGNAME 60 ///< All shadow actions have to be published or subscribed to a topic which is of the formablogt $aws/things/{thingName}/shadow/update/accepted. This refers to the size of the topic without the Thing Name
#define MAX_SIZE_OF_THING_NAME 20 ///< The Thing Name should not be bigger than this value. Modify this if the Thing Name needs to be bigger
#define MAX_SHADOW_TOPIC_LENGTH_BYTES (MAX_SHADOW_TOPIC_LENGTH_WITHOUT_THINGNAME + MAX_SIZE_OF_THING_NAME) ///< This size includes the length of topic with Thing Name

// Auto Reconnect specific config
#define AWS_IOT_MQTT_MIN_RECONNECT_WAIT_INTERVAL 1000 ///< Minimum time before the First reconnect attempt is made as part of the exponential back-off algorithm
#define AWS_IOT_MQTT_MAX_RECONNECT_WAIT_INTERVAL 128000 ///< Maximum time interval after which exponential back-off will stop attempting to reconnect.

#endif /* _AWS_IOT_CONFIG_H_ */