Daniel Lee / Mbed OS http-example-ForTheKsystem

Initial setup for TheKsystem.

Dependencies:   mbed-http HTS221

source/main-http.cpp@37:e80cbc5cd080, 2020-07-30 (annotated)

Committer:
Daniel_Lee
Date:
Thu Jul 30 07:42:25 2020 +0000
Revision:
37:e80cbc5cd080
Parent:
36:3c86e52c9e75 
Mbed OS version change to 5.15.4

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jan Jongboom 0:85fdc69bc10c 1 #include "select-demo.h"
Jan Jongboom 0:85fdc69bc10c 2
Jan Jongboom 0:85fdc69bc10c 3 #if DEMO == DEMO_HTTP
Jan Jongboom 0:85fdc69bc10c 4
Jan Jongboom 0:85fdc69bc10c 5 #include "mbed.h"
Jan Jongboom 0:85fdc69bc10c 6 #include "http_request.h"
Jan Jongboom 30:4825e4f38844 7 #include "network-helper.h"
Jan Jongboom 31:66704f6f17c5 8 #include "mbed_mem_trace.h"
Daniel_Lee 36:3c86e52c9e75 9 #include "HTS221Sensor.h"
Daniel_Lee 36:3c86e52c9e75 10
Daniel_Lee 36:3c86e52c9e75 11 static DevI2C devI2c(PB_11,PB_10);
Daniel_Lee 36:3c86e52c9e75 12 static HTS221Sensor hum_temp(&devI2c);
Daniel_Lee 36:3c86e52c9e75 13 //theKsystemsURL = "https://api.theksystem.com/update?apiKey=9Q8vOz1lguaV6Ou4&field1=21"
Daniel_Lee 36:3c86e52c9e75 14 char* theKsystemsURL = "http://api.theksystem.com";
Daniel_Lee 36:3c86e52c9e75 15 char* theKsystemsAPIkey = "9Q8vOz1lguaV6Ou4";
Daniel_Lee 36:3c86e52c9e75 16 char urlBuffer[256];
Jan Jongboom 0:85fdc69bc10c 17
Jan Jongboom 0:85fdc69bc10c 18 void dump_response(HttpResponse* res) {
Jan Jongboom 0:85fdc69bc10c 19 printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());
Jan Jongboom 0:85fdc69bc10c 20
Jan Jongboom 0:85fdc69bc10c 21 printf("Headers:\n");
Jan Jongboom 0:85fdc69bc10c 22 for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
Jan Jongboom 7:5d32909f77de 23 printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
Jan Jongboom 0:85fdc69bc10c 24 }
Jan Jongboom 5:42f713b19337 25 printf("\nBody (%d bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
Jan Jongboom 0:85fdc69bc10c 26 }
Jan Jongboom 0:85fdc69bc10c 27
Daniel_Lee 36:3c86e52c9e75 28
Jan Jongboom 0:85fdc69bc10c 29 int main() {
Daniel_Lee 36:3c86e52c9e75 30 unsigned int updateCnt=0;
Daniel_Lee 36:3c86e52c9e75 31 float hum_val=12, temp_val=34;
Daniel_Lee 36:3c86e52c9e75 32
Daniel_Lee 36:3c86e52c9e75 33 printf("DISCO-L457VG-IOT01A WiFi + TheKsystem example\r\n");
Daniel_Lee 36:3c86e52c9e75 34
Daniel_Lee 36:3c86e52c9e75 35 #ifdef MBED_MAJOR_VERSION
Daniel_Lee 36:3c86e52c9e75 36 printf("Mbed OS version %d.%d.%d\n\n", MBED_MAJOR_VERSION, MBED_MINOR_VERSION, MBED_PATCH_VERSION);
Daniel_Lee 36:3c86e52c9e75 37 #endif
Daniel_Lee 36:3c86e52c9e75 38
Daniel_Lee 36:3c86e52c9e75 39 printf("<< =========== Network check.. =========== >>\r\n");
Daniel_Lee 36:3c86e52c9e75 40
Jan Jongboom 30:4825e4f38844 41 // Connect to the network with the default networking interface
Jan Jongboom 30:4825e4f38844 42 // if you use WiFi: see mbed_app.json for the credentials
Jan Jongboom 30:4825e4f38844 43 NetworkInterface* network = connect_to_default_network_interface();
Jan Jongboom 0:85fdc69bc10c 44 if (!network) {
Jan Jongboom 30:4825e4f38844 45 printf("Cannot connect to the network, see serial output\n");
Jan Jongboom 0:85fdc69bc10c 46 return 1;
Jan Jongboom 0:85fdc69bc10c 47 }
Jan Jongboom 0:85fdc69bc10c 48
Daniel_Lee 36:3c86e52c9e75 49 printf("Successfully access to network\n\n");
Daniel_Lee 36:3c86e52c9e75 50
Daniel_Lee 36:3c86e52c9e75 51 printf("MAC: %s\n", network->get_mac_address());
Daniel_Lee 36:3c86e52c9e75 52 printf("IP: %s\n", network->get_ip_address());
Daniel_Lee 36:3c86e52c9e75 53 printf("Netmask: %s\n", network->get_netmask());
Daniel_Lee 36:3c86e52c9e75 54 printf("Gateway: %s\n", network->get_gateway());
Daniel_Lee 36:3c86e52c9e75 55
Daniel_Lee 36:3c86e52c9e75 56 printf("<< =========== Sensor check.. =========== >>\r\n");
Daniel_Lee 36:3c86e52c9e75 57 unsigned int a=0;
Daniel_Lee 36:3c86e52c9e75 58 hum_temp.init(NULL);
Daniel_Lee 36:3c86e52c9e75 59 hum_temp.enable();
Daniel_Lee 36:3c86e52c9e75 60
Jan Jongboom 0:85fdc69bc10c 61 // Do a GET request to httpbin.org
Daniel_Lee 36:3c86e52c9e75 62 while(1){
Jan Jongboom 14:3c173847e681 63 // By default the body is automatically parsed and stored in a buffer, this is memory heavy.
Jan Jongboom 14:3c173847e681 64 // To receive chunked response, pass in a callback as last parameter to the constructor.
Jan Jongboom 0:85fdc69bc10c 65
Daniel_Lee 36:3c86e52c9e75 66 hum_temp.get_humidity(&hum_val);
Daniel_Lee 36:3c86e52c9e75 67 hum_temp.get_temperature(&temp_val);
Daniel_Lee 36:3c86e52c9e75 68 printf("HT221 hum: %.1f %, temp: %.1f C\n", hum_val, temp_val);
Daniel_Lee 36:3c86e52c9e75 69 sprintf(urlBuffer, "%s/update?apiKey=%s&field1=%.1f&field2=%.1f", theKsystemsURL, theKsystemsAPIkey, hum_val, temp_val);
Daniel_Lee 36:3c86e52c9e75 70
Daniel_Lee 36:3c86e52c9e75 71 printf("[DEBUG] %s\n", urlBuffer);
Daniel_Lee 36:3c86e52c9e75 72 HttpRequest* get_req = new HttpRequest(network, HTTP_GET, urlBuffer);
Daniel_Lee 36:3c86e52c9e75 73
Jan Jongboom 5:42f713b19337 74 HttpResponse* get_res = get_req->send();
Jan Jongboom 5:42f713b19337 75 if (!get_res) {
Jan Jongboom 5:42f713b19337 76 printf("HttpRequest failed (error code %d)\n", get_req->get_error());
Jan Jongboom 5:42f713b19337 77 return 1;
Jan Jongboom 5:42f713b19337 78 }
Jan Jongboom 5:42f713b19337 79
Jan Jongboom 5:42f713b19337 80 printf("\n----- HTTP GET response -----\n");
Jan Jongboom 5:42f713b19337 81 dump_response(get_res);
Jan Jongboom 5:42f713b19337 82
Jan Jongboom 5:42f713b19337 83 delete get_req;
Daniel_Lee 36:3c86e52c9e75 84 printf("\nUpdate count %d (Every 10sec, data update to theK server)\n",updateCnt++);
Daniel_Lee 36:3c86e52c9e75 85 wait(10);
Jan Jongboom 0:85fdc69bc10c 86 }
Daniel_Lee 36:3c86e52c9e75 87 #if 0
Jan Jongboom 0:85fdc69bc10c 88 // POST request to httpbin.org
Jan Jongboom 5:42f713b19337 89 {
Jan Jongboom 5:42f713b19337 90 HttpRequest* post_req = new HttpRequest(network, HTTP_POST, "http://httpbin.org/post");
Jan Jongboom 5:42f713b19337 91 post_req->set_header("Content-Type", "application/json");
Jan Jongboom 0:85fdc69bc10c 92
Jan Jongboom 5:42f713b19337 93 const char body[] = "{\"hello\":\"world\"}";
Jan Jongboom 0:85fdc69bc10c 94
Jan Jongboom 5:42f713b19337 95 HttpResponse* post_res = post_req->send(body, strlen(body));
Jan Jongboom 5:42f713b19337 96 if (!post_res) {
Jan Jongboom 5:42f713b19337 97 printf("HttpRequest failed (error code %d)\n", post_req->get_error());
Jan Jongboom 5:42f713b19337 98 return 1;
Jan Jongboom 5:42f713b19337 99 }
Jan Jongboom 5:42f713b19337 100
Jan Jongboom 5:42f713b19337 101 printf("\n----- HTTP POST response -----\n");
Jan Jongboom 5:42f713b19337 102 dump_response(post_res);
Jan Jongboom 5:42f713b19337 103
Jan Jongboom 5:42f713b19337 104 delete post_req;
Jan Jongboom 0:85fdc69bc10c 105 }
Daniel_Lee 36:3c86e52c9e75 106 #endif
Jan Jongboom 28:9bccd981a393 107 wait(osWaitForever);
Jan Jongboom 0:85fdc69bc10c 108 }
Jan Jongboom 0:85fdc69bc10c 109
Jan Jongboom 0:85fdc69bc10c 110 #endif