AT&T IoT / Mbed OS ATT_AWS_IoT_demo Featured

Demo application for using the AT&T IoT Starter Kit Powered by AWS.

Dependencies:   SDFileSystem

Fork of ATT_AWS_IoT_demo by Anthony Phillips

IoT Starter Kit Powered by AWS Demo

This program demonstrates the AT&T IoT Starter Kit sending data directly into AWS IoT. It's explained and used in the Getting Started with the IoT Starter Kit Powered by AWS on starterkit.att.com.

What's required

  • AT&T IoT LTE Add-on (also known as the Cellular Shield)
  • NXP K64F - for programming
  • microSD card - used to store your AWS security credentials
  • AWS account
  • Python, locally installed

If you don't already have an IoT Starter Kit, you can purchase a kit here. The IoT Starter Kit Powered by AWS includes the LTE cellular shield, K64F, and a microSD card.

AWS_openssl/aws_iot_src/shadow/aws_iot_shadow_actions.cpp

Committer:
rfinn
Date:
2017-02-07
Revision:
27:2f486c766854
Parent:
15:6f2798e45099

File content as of revision 27:2f486c766854:

/*
 * 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.
 */

#include "aws_iot_shadow_actions.h"

#include "aws_iot_log.h"
#include "aws_iot_shadow_json.h"
#include "aws_iot_shadow_records.h"
#include "aws_iot_config.h"

IoT_Error_t iot_shadow_action(MQTTClient_t *pClient, const char *pThingName, ShadowActions_t action,
		const char *pJsonDocumentToBeSent, fpActionCallback_t callback, void *pCallbackContext,
		uint32_t timeout_seconds, bool isSticky) {

	IoT_Error_t ret_val = NONE_ERROR;
	bool isCallbackPresent = false;
	bool isClientTokenPresent = false;
	bool isAckWaitListFree = false;
	uint8_t indexAckWaitList;

	if(pClient == NULL || pThingName == NULL || pJsonDocumentToBeSent == NULL){
		return NULL_VALUE_ERROR;
	}

	if (callback != NULL) {
		isCallbackPresent = true;
	}

	char extractedClientToken[MAX_SIZE_CLIENT_ID_WITH_SEQUENCE];
	isClientTokenPresent = extractClientToken(pJsonDocumentToBeSent, extractedClientToken);

	if (isClientTokenPresent && isCallbackPresent) {
		if (getNextFreeIndexOfAckWaitList(&indexAckWaitList)) {
			isAckWaitListFree = true;
		}

		if(isAckWaitListFree) {
			if (!isSubscriptionPresent(pThingName, action)) {
				ret_val = subscribeToShadowActionAcks(pThingName, action, isSticky);
			} else {
				incrementSubscriptionCnt(pThingName, action, isSticky);
			}
		}
		else {
			ret_val = GENERIC_ERROR;
		}
	}


	if (ret_val == NONE_ERROR) {
		ret_val = publishToShadowAction(pThingName, action, pJsonDocumentToBeSent);
	}

	if (isClientTokenPresent && isCallbackPresent && ret_val == NONE_ERROR && isAckWaitListFree) {
		addToAckWaitList(indexAckWaitList, pThingName, action, extractedClientToken, callback, pCallbackContext,
				timeout_seconds);
	}
	return ret_val;
}