Azure IoT / Mbed 2 deprecated iothub_client_sample_http

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Dependencies:   iothub_client EthernetInterface iothub_http_transport mbed-rtos mbed wolfSSL azure_c_shared_utility NTPClient

iothub_client_sample_http.c@62:2320ad565fc3, 2017-02-24 (annotated)

Committer:
AzureIoTClient
Date:
Fri Feb 24 14:02:23 2017 -0800
Revision:
62:2320ad565fc3
Parent:
54:54dc461c75da
Child:
68:a8c0f61d8478
1.1.8

Who changed what in which revision?

UserRevisionLine numberNew contents of line
AzureIoTClient 18:e3e29fc771c9 1 // Copyright (c) Microsoft. All rights reserved.
AzureIoTClient 18:e3e29fc771c9 2 // Licensed under the MIT license. See LICENSE file in the project root for full license information.
AzureIoTClient 18:e3e29fc771c9 3
AzureIoTClient 18:e3e29fc771c9 4 #include <stdio.h>
AzureIoTClient 18:e3e29fc771c9 5 #include <stdlib.h>
AzureIoTClient 18:e3e29fc771c9 6
AzureIoTClient 18:e3e29fc771c9 7 /* This sample uses the _LL APIs of iothub_client for example purposes.
AzureIoTClient 41:7a930aa6dc01 8 That does not mean that HTTP only works with the _LL APIs.
AzureIoTClient 41:7a930aa6dc01 9 Simply changing the using the convenience layer (functions not having _LL)
AzureIoTClient 41:7a930aa6dc01 10 and removing calls to _DoWork will yield the same results. */
AzureIoTClient 18:e3e29fc771c9 11
AzureIoTClient 20:52f8298d7256 12 #ifdef ARDUINO
AzureIoTClient 20:52f8298d7256 13 #include "AzureIoT.h"
AzureIoTClient 20:52f8298d7256 14 #else
Azure.IoT Build 46:91bd03862871 15 #include "azure_c_shared_utility/threadapi.h"
Azure.IoT Build 46:91bd03862871 16 #include "azure_c_shared_utility/crt_abstractions.h"
Azure.IoT Build 46:91bd03862871 17 #include "azure_c_shared_utility/platform.h"
AzureIoTClient 18:e3e29fc771c9 18 #include "iothub_client_ll.h"
AzureIoTClient 18:e3e29fc771c9 19 #include "iothub_message.h"
AzureIoTClient 18:e3e29fc771c9 20 #include "iothubtransporthttp.h"
AzureIoTClient 20:52f8298d7256 21 #endif
AzureIoTClient 18:e3e29fc771c9 22
AzureIoTClient 18:e3e29fc771c9 23 #ifdef MBED_BUILD_TIMESTAMP
AzureIoTClient 18:e3e29fc771c9 24 #include "certs.h"
AzureIoTClient 18:e3e29fc771c9 25 #endif // MBED_BUILD_TIMESTAMP
AzureIoTClient 18:e3e29fc771c9 26
AzureIoTClient 39:405f9c637ba4 27 /*String containing Hostname, Device Id & Device Key in the format: */
AzureIoTClient 39:405f9c637ba4 28 /* "HostName=<host_name>;DeviceId=<device_id>;SharedAccessKey=<device_key>" */
AzureIoTClient 39:405f9c637ba4 29 /* "HostName=<host_name>;DeviceId=<device_id>;SharedAccessSignature=<device_sas_token>" */
AzureIoTClient 18:e3e29fc771c9 30 static const char* connectionString = "[device connection string]";
AzureIoTClient 39:405f9c637ba4 31
AzureIoTClient 48:07c7ca66634a 32
AzureIoTClient 18:e3e29fc771c9 33 static int callbackCounter;
AzureIoTClient 42:289de245ba1d 34 static bool g_continueRunning;
Azure.IoT Build 46:91bd03862871 35 static char msgText[1024];
Azure.IoT Build 46:91bd03862871 36 static char propText[1024];
Azure.IoT Build 46:91bd03862871 37 #define MESSAGE_COUNT 5
Azure.IoT Build 46:91bd03862871 38 #define DOWORK_LOOP_NUM 3
AzureIoTClient 18:e3e29fc771c9 39
AzureIoTClient 18:e3e29fc771c9 40
AzureIoTClient 18:e3e29fc771c9 41 typedef struct EVENT_INSTANCE_TAG
AzureIoTClient 18:e3e29fc771c9 42 {
AzureIoTClient 18:e3e29fc771c9 43 IOTHUB_MESSAGE_HANDLE messageHandle;
AzureIoTClient 47:bc18bf0e4a6a 44 size_t messageTrackingId; // For tracking the messages within the user callback.
AzureIoTClient 18:e3e29fc771c9 45 } EVENT_INSTANCE;
AzureIoTClient 18:e3e29fc771c9 46
AzureIoTClient 18:e3e29fc771c9 47 static IOTHUBMESSAGE_DISPOSITION_RESULT ReceiveMessageCallback(IOTHUB_MESSAGE_HANDLE message, void* userContextCallback)
AzureIoTClient 18:e3e29fc771c9 48 {
AzureIoTClient 18:e3e29fc771c9 49 int* counter = (int*)userContextCallback;
AzureIoTClient 18:e3e29fc771c9 50 const char* buffer;
AzureIoTClient 18:e3e29fc771c9 51 size_t size;
AzureIoTClient 41:7a930aa6dc01 52 MAP_HANDLE mapProperties;
AzureIoTClient 62:2320ad565fc3 53 const char* messageId;
AzureIoTClient 62:2320ad565fc3 54 const char* correlationId;
AzureIoTClient 20:52f8298d7256 55
AzureIoTClient 62:2320ad565fc3 56 // Message properties
AzureIoTClient 62:2320ad565fc3 57 if ((messageId = IoTHubMessage_GetMessageId(message)) == NULL)
AzureIoTClient 62:2320ad565fc3 58 {
AzureIoTClient 62:2320ad565fc3 59 messageId = "<null>";
AzureIoTClient 62:2320ad565fc3 60 }
AzureIoTClient 62:2320ad565fc3 61
AzureIoTClient 62:2320ad565fc3 62 if ((correlationId = IoTHubMessage_GetCorrelationId(message)) == NULL)
AzureIoTClient 62:2320ad565fc3 63 {
AzureIoTClient 62:2320ad565fc3 64 correlationId = "<null>";
AzureIoTClient 62:2320ad565fc3 65 }
AzureIoTClient 62:2320ad565fc3 66
AzureIoTClient 62:2320ad565fc3 67 // Message content
AzureIoTClient 18:e3e29fc771c9 68 if (IoTHubMessage_GetByteArray(message, (const unsigned char**)&buffer, &size) != IOTHUB_MESSAGE_OK)
AzureIoTClient 18:e3e29fc771c9 69 {
AzureIoTClient 18:e3e29fc771c9 70 printf("unable to retrieve the message data\r\n");
AzureIoTClient 18:e3e29fc771c9 71 }
AzureIoTClient 18:e3e29fc771c9 72 else
AzureIoTClient 18:e3e29fc771c9 73 {
AzureIoTClient 62:2320ad565fc3 74 (void)printf("Received Message [%d]\r\n Message ID: %s\r\n Correlation ID: %s\r\n Data: <<<%.*s>>> & Size=%d\r\n", *counter, messageId, correlationId, (int)size, buffer, (int)size);
AzureIoTClient 54:54dc461c75da 75 if (size == (strlen("quit") * sizeof(char)) && memcmp(buffer, "quit", size) == 0)
AzureIoTClient 42:289de245ba1d 76 {
AzureIoTClient 42:289de245ba1d 77 g_continueRunning = false;
AzureIoTClient 42:289de245ba1d 78 }
AzureIoTClient 18:e3e29fc771c9 79 }
AzureIoTClient 18:e3e29fc771c9 80
AzureIoTClient 18:e3e29fc771c9 81 // Retrieve properties from the message
AzureIoTClient 20:52f8298d7256 82 mapProperties = IoTHubMessage_Properties(message);
AzureIoTClient 18:e3e29fc771c9 83 if (mapProperties != NULL)
AzureIoTClient 18:e3e29fc771c9 84 {
AzureIoTClient 18:e3e29fc771c9 85 const char*const* keys;
AzureIoTClient 18:e3e29fc771c9 86 const char*const* values;
AzureIoTClient 18:e3e29fc771c9 87 size_t propertyCount = 0;
AzureIoTClient 18:e3e29fc771c9 88 if (Map_GetInternals(mapProperties, &keys, &values, &propertyCount) == MAP_OK)
AzureIoTClient 18:e3e29fc771c9 89 {
AzureIoTClient 18:e3e29fc771c9 90 if (propertyCount > 0)
AzureIoTClient 18:e3e29fc771c9 91 {
AzureIoTClient 41:7a930aa6dc01 92 size_t index;
AzureIoTClient 20:52f8298d7256 93
AzureIoTClient 62:2320ad565fc3 94 printf(" Message Properties:\r\n");
AzureIoTClient 20:52f8298d7256 95 for (index = 0; index < propertyCount; index++)
AzureIoTClient 18:e3e29fc771c9 96 {
AzureIoTClient 18:e3e29fc771c9 97 printf("\tKey: %s Value: %s\r\n", keys[index], values[index]);
AzureIoTClient 18:e3e29fc771c9 98 }
AzureIoTClient 18:e3e29fc771c9 99 printf("\r\n");
AzureIoTClient 18:e3e29fc771c9 100 }
AzureIoTClient 18:e3e29fc771c9 101 }
AzureIoTClient 18:e3e29fc771c9 102 }
AzureIoTClient 18:e3e29fc771c9 103
AzureIoTClient 18:e3e29fc771c9 104 /* Some device specific action code goes here... */
AzureIoTClient 18:e3e29fc771c9 105 (*counter)++;
AzureIoTClient 18:e3e29fc771c9 106 return IOTHUBMESSAGE_ACCEPTED;
AzureIoTClient 18:e3e29fc771c9 107 }
AzureIoTClient 18:e3e29fc771c9 108
AzureIoTClient 18:e3e29fc771c9 109 static void SendConfirmationCallback(IOTHUB_CLIENT_CONFIRMATION_RESULT result, void* userContextCallback)
AzureIoTClient 18:e3e29fc771c9 110 {
AzureIoTClient 18:e3e29fc771c9 111 EVENT_INSTANCE* eventInstance = (EVENT_INSTANCE*)userContextCallback;
AzureIoTClient 49:2aa1b773af3c 112
AzureIoTClient 49:2aa1b773af3c 113 (void)printf("Confirmation[%d] received for message tracking id = %zu with result = %s\r\n", callbackCounter, eventInstance->messageTrackingId, ENUM_TO_STRING(IOTHUB_CLIENT_CONFIRMATION_RESULT, result));
AzureIoTClient 49:2aa1b773af3c 114
AzureIoTClient 18:e3e29fc771c9 115 /* Some device specific action code goes here... */
AzureIoTClient 18:e3e29fc771c9 116 callbackCounter++;
AzureIoTClient 18:e3e29fc771c9 117 IoTHubMessage_Destroy(eventInstance->messageHandle);
AzureIoTClient 18:e3e29fc771c9 118 }
AzureIoTClient 18:e3e29fc771c9 119
AzureIoTClient 18:e3e29fc771c9 120 void iothub_client_sample_http_run(void)
AzureIoTClient 18:e3e29fc771c9 121 {
AzureIoTClient 18:e3e29fc771c9 122 IOTHUB_CLIENT_LL_HANDLE iotHubClientHandle;
AzureIoTClient 18:e3e29fc771c9 123
AzureIoTClient 18:e3e29fc771c9 124 EVENT_INSTANCE messages[MESSAGE_COUNT];
AzureIoTClient 20:52f8298d7256 125 double avgWindSpeed = 10.0;
AzureIoTClient 20:52f8298d7256 126 int receiveContext = 0;
Azure.IoT Build 46:91bd03862871 127
AzureIoTClient 42:289de245ba1d 128 g_continueRunning = true;
AzureIoTClient 18:e3e29fc771c9 129
AzureIoTClient 18:e3e29fc771c9 130 srand((unsigned int)time(NULL));
AzureIoTClient 18:e3e29fc771c9 131
AzureIoTClient 18:e3e29fc771c9 132 callbackCounter = 0;
AzureIoTClient 18:e3e29fc771c9 133
Azure.IoT Build 33:f8eb46ca453d 134 if (platform_init() != 0)
AzureIoTClient 18:e3e29fc771c9 135 {
Azure.IoT Build 33:f8eb46ca453d 136 printf("Failed to initialize the platform.\r\n");
AzureIoTClient 18:e3e29fc771c9 137 }
AzureIoTClient 18:e3e29fc771c9 138 else
AzureIoTClient 18:e3e29fc771c9 139 {
Azure.IoT Build 33:f8eb46ca453d 140 (void)printf("Starting the IoTHub client sample HTTP...\r\n");
AzureIoTClient 18:e3e29fc771c9 141
Azure.IoT Build 33:f8eb46ca453d 142 if ((iotHubClientHandle = IoTHubClient_LL_CreateFromConnectionString(connectionString, HTTP_Protocol)) == NULL)
AzureIoTClient 18:e3e29fc771c9 143 {
Azure.IoT Build 33:f8eb46ca453d 144 (void)printf("ERROR: iotHubClientHandle is NULL!\r\n");
AzureIoTClient 18:e3e29fc771c9 145 }
AzureIoTClient 18:e3e29fc771c9 146 else
AzureIoTClient 18:e3e29fc771c9 147 {
Azure.IoT Build 33:f8eb46ca453d 148 unsigned int timeout = 241000;
Azure.IoT Build 33:f8eb46ca453d 149 // Because it can poll "after 9 seconds" polls will happen effectively // at ~10 seconds.
Azure.IoT Build 33:f8eb46ca453d 150 // Note that for scalabilty, the default value of minimumPollingTime
Azure.IoT Build 33:f8eb46ca453d 151 // is 25 minutes. For more information, see:
Azure.IoT Build 33:f8eb46ca453d 152 // https://azure.microsoft.com/documentation/articles/iot-hub-devguide/#messaging
Azure.IoT Build 33:f8eb46ca453d 153 unsigned int minimumPollingTime = 9;
Azure.IoT Build 33:f8eb46ca453d 154 if (IoTHubClient_LL_SetOption(iotHubClientHandle, "timeout", &timeout) != IOTHUB_CLIENT_OK)
Azure.IoT Build 33:f8eb46ca453d 155 {
Azure.IoT Build 33:f8eb46ca453d 156 printf("failure to set option \"timeout\"\r\n");
Azure.IoT Build 33:f8eb46ca453d 157 }
AzureIoTClient 20:52f8298d7256 158
Azure.IoT Build 33:f8eb46ca453d 159 if (IoTHubClient_LL_SetOption(iotHubClientHandle, "MinimumPollingTime", &minimumPollingTime) != IOTHUB_CLIENT_OK)
AzureIoTClient 18:e3e29fc771c9 160 {
Azure.IoT Build 33:f8eb46ca453d 161 printf("failure to set option \"MinimumPollingTime\"\r\n");
Azure.IoT Build 33:f8eb46ca453d 162 }
Azure.IoT Build 33:f8eb46ca453d 163
Azure.IoT Build 33:f8eb46ca453d 164 #ifdef MBED_BUILD_TIMESTAMP
Azure.IoT Build 33:f8eb46ca453d 165 // For mbed add the certificate information
Azure.IoT Build 33:f8eb46ca453d 166 if (IoTHubClient_LL_SetOption(iotHubClientHandle, "TrustedCerts", certificates) != IOTHUB_CLIENT_OK)
Azure.IoT Build 33:f8eb46ca453d 167 {
Azure.IoT Build 33:f8eb46ca453d 168 printf("failure to set option \"TrustedCerts\"\r\n");
Azure.IoT Build 33:f8eb46ca453d 169 }
Azure.IoT Build 33:f8eb46ca453d 170 #endif // MBED_BUILD_TIMESTAMP
Azure.IoT Build 33:f8eb46ca453d 171
Azure.IoT Build 33:f8eb46ca453d 172 /* Setting Message call back, so we can receive Commands. */
Azure.IoT Build 33:f8eb46ca453d 173 if (IoTHubClient_LL_SetMessageCallback(iotHubClientHandle, ReceiveMessageCallback, &receiveContext) != IOTHUB_CLIENT_OK)
Azure.IoT Build 33:f8eb46ca453d 174 {
Azure.IoT Build 33:f8eb46ca453d 175 (void)printf("ERROR: IoTHubClient_LL_SetMessageCallback..........FAILED!\r\n");
Azure.IoT Build 33:f8eb46ca453d 176 }
Azure.IoT Build 33:f8eb46ca453d 177 else
Azure.IoT Build 33:f8eb46ca453d 178 {
Azure.IoT Build 33:f8eb46ca453d 179 (void)printf("IoTHubClient_LL_SetMessageCallback...successful.\r\n");
Azure.IoT Build 33:f8eb46ca453d 180
Azure.IoT Build 33:f8eb46ca453d 181 /* Now that we are ready to receive commands, let's send some messages */
AzureIoTClient 42:289de245ba1d 182 size_t iterator = 0;
AzureIoTClient 42:289de245ba1d 183 do
AzureIoTClient 18:e3e29fc771c9 184 {
AzureIoTClient 42:289de245ba1d 185 if (iterator < MESSAGE_COUNT)
AzureIoTClient 18:e3e29fc771c9 186 {
AzureIoTClient 42:289de245ba1d 187 sprintf_s(msgText, sizeof(msgText), "{\"deviceId\": \"myFirstDevice\",\"windSpeed\": %.2f}", avgWindSpeed + (rand() % 4 + 2));
AzureIoTClient 42:289de245ba1d 188 if ((messages[iterator].messageHandle = IoTHubMessage_CreateFromByteArray((const unsigned char*)msgText, strlen(msgText))) == NULL)
Azure.IoT Build 33:f8eb46ca453d 189 {
AzureIoTClient 42:289de245ba1d 190 (void)printf("ERROR: iotHubMessageHandle is NULL!\r\n");
Azure.IoT Build 33:f8eb46ca453d 191 }
Azure.IoT Build 33:f8eb46ca453d 192 else
Azure.IoT Build 33:f8eb46ca453d 193 {
AzureIoTClient 42:289de245ba1d 194 MAP_HANDLE propMap;
AzureIoTClient 42:289de245ba1d 195
AzureIoTClient 42:289de245ba1d 196 messages[iterator].messageTrackingId = iterator;
Azure.IoT Build 33:f8eb46ca453d 197
AzureIoTClient 42:289de245ba1d 198 propMap = IoTHubMessage_Properties(messages[iterator].messageHandle);
AzureIoTClient 47:bc18bf0e4a6a 199 (void)sprintf_s(propText, sizeof(propText), "PropMsg_%zu", iterator);
AzureIoTClient 49:2aa1b773af3c 200 if (Map_AddOrUpdate(propMap, "PropName", propText) != MAP_OK)
AzureIoTClient 42:289de245ba1d 201 {
AzureIoTClient 42:289de245ba1d 202 (void)printf("ERROR: Map_AddOrUpdate Failed!\r\n");
AzureIoTClient 42:289de245ba1d 203 }
AzureIoTClient 18:e3e29fc771c9 204
AzureIoTClient 42:289de245ba1d 205 if (IoTHubClient_LL_SendEventAsync(iotHubClientHandle, messages[iterator].messageHandle, SendConfirmationCallback, &messages[iterator]) != IOTHUB_CLIENT_OK)
AzureIoTClient 42:289de245ba1d 206 {
AzureIoTClient 42:289de245ba1d 207 (void)printf("ERROR: IoTHubClient_LL_SendEventAsync..........FAILED!\r\n");
AzureIoTClient 42:289de245ba1d 208 }
AzureIoTClient 42:289de245ba1d 209 else
AzureIoTClient 42:289de245ba1d 210 {
AzureIoTClient 49:2aa1b773af3c 211 (void)printf("IoTHubClient_LL_SendEventAsync accepted message [%zu] for transmission to IoT Hub.\r\n", iterator);
AzureIoTClient 49:2aa1b773af3c 212
AzureIoTClient 42:289de245ba1d 213 }
AzureIoTClient 42:289de245ba1d 214
AzureIoTClient 42:289de245ba1d 215 }
AzureIoTClient 42:289de245ba1d 216 }
AzureIoTClient 42:289de245ba1d 217 IoTHubClient_LL_DoWork(iotHubClientHandle);
AzureIoTClient 42:289de245ba1d 218 ThreadAPI_Sleep(1);
AzureIoTClient 42:289de245ba1d 219
AzureIoTClient 42:289de245ba1d 220 iterator++;
AzureIoTClient 42:289de245ba1d 221 } while (g_continueRunning);
Azure.IoT Build 46:91bd03862871 222
AzureIoTClient 48:07c7ca66634a 223 (void)printf("iothub_client_sample_http has gotten quit message, call DoWork %d more time to complete final sending...\r\n", DOWORK_LOOP_NUM);
Azure.IoT Build 46:91bd03862871 224 for (size_t index = 0; index < DOWORK_LOOP_NUM; index++)
Azure.IoT Build 46:91bd03862871 225 {
Azure.IoT Build 46:91bd03862871 226 IoTHubClient_LL_DoWork(iotHubClientHandle);
Azure.IoT Build 46:91bd03862871 227 ThreadAPI_Sleep(1);
Azure.IoT Build 46:91bd03862871 228 }
Azure.IoT Build 33:f8eb46ca453d 229 }
Azure.IoT Build 33:f8eb46ca453d 230 IoTHubClient_LL_Destroy(iotHubClientHandle);
AzureIoTClient 18:e3e29fc771c9 231 }
Azure.IoT Build 33:f8eb46ca453d 232 platform_deinit();
AzureIoTClient 18:e3e29fc771c9 233 }
AzureIoTClient 18:e3e29fc771c9 234 }
AzureIoTClient 42:289de245ba1d 235
AzureIoTClient 42:289de245ba1d 236 int main(void)
AzureIoTClient 42:289de245ba1d 237 {
AzureIoTClient 48:07c7ca66634a 238 iothub_client_sample_http_run();
AzureIoTClient 48:07c7ca66634a 239 return 0;
AzureIoTClient 42:289de245ba1d 240 }