yoshi kuwae yoshi / Mbed OS http-example

a

Dependencies:   mbed-http

Fork of http-example by sandbox

source/main-http.cpp@17:97b1dd566b07, 2017-09-04 (annotated)

Committer:
Jan Jongboom
Date:
Mon Sep 04 17:01:11 2017 +0100
Revision:
17:97b1dd566b07
Parent:
15:65a49b573ba5
Child:
20:d851bc648f9e
Enable entropy sources for ODIN-W2; add note on memory usage

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 "easy-connect.h"
Jan Jongboom 0:85fdc69bc10c 7 #include "http_request.h"
Jan Jongboom 17:97b1dd566b07 8 #include "mbed_stats.h"
Jan Jongboom 0:85fdc69bc10c 9
Jan Jongboom 0:85fdc69bc10c 10 Serial pc(USBTX, USBRX);
Jan Jongboom 0:85fdc69bc10c 11
Jan Jongboom 0:85fdc69bc10c 12 void dump_response(HttpResponse* res) {
Jan Jongboom 0:85fdc69bc10c 13 printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());
Jan Jongboom 0:85fdc69bc10c 14
Jan Jongboom 0:85fdc69bc10c 15 printf("Headers:\n");
Jan Jongboom 0:85fdc69bc10c 16 for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
Jan Jongboom 7:5d32909f77de 17 printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
Jan Jongboom 0:85fdc69bc10c 18 }
Jan Jongboom 5:42f713b19337 19 printf("\nBody (%d bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
Jan Jongboom 0:85fdc69bc10c 20 }
Jan Jongboom 0:85fdc69bc10c 21
Jan Jongboom 0:85fdc69bc10c 22 int main() {
Jan Jongboom 0:85fdc69bc10c 23 pc.baud(115200);
Jan Jongboom 17:97b1dd566b07 24
Jan Jongboom 17:97b1dd566b07 25 mbed_stats_heap_t heap_stats;
Jan Jongboom 17:97b1dd566b07 26
Jan Jongboom 17:97b1dd566b07 27 mbed_stats_heap_get(&heap_stats);
Jan Jongboom 17:97b1dd566b07 28 printf("[1] Heap: %lu / %lu, max=%lu\n", heap_stats.current_size, heap_stats.reserved_size, heap_stats.max_size);
Jan Jongboom 17:97b1dd566b07 29
Jan Jongboom 0:85fdc69bc10c 30 // Connect to the network (see mbed_app.json for the connectivity method used)
Jan Jongboom 15:65a49b573ba5 31 NetworkInterface* network = easy_connect(true);
Jan Jongboom 0:85fdc69bc10c 32 if (!network) {
Jan Jongboom 0:85fdc69bc10c 33 printf("Cannot connect to the network, see serial output");
Jan Jongboom 0:85fdc69bc10c 34 return 1;
Jan Jongboom 0:85fdc69bc10c 35 }
Jan Jongboom 0:85fdc69bc10c 36
Jan Jongboom 17:97b1dd566b07 37 mbed_stats_heap_get(&heap_stats);
Jan Jongboom 17:97b1dd566b07 38 printf("[2] Heap: %lu / %lu, max=%lu\n", heap_stats.current_size, heap_stats.reserved_size, heap_stats.max_size);
Jan Jongboom 17:97b1dd566b07 39
Jan Jongboom 0:85fdc69bc10c 40 // Do a GET request to httpbin.org
Jan Jongboom 5:42f713b19337 41 {
Jan Jongboom 14:3c173847e681 42 // By default the body is automatically parsed and stored in a buffer, this is memory heavy.
Jan Jongboom 14:3c173847e681 43 // To receive chunked response, pass in a callback as last parameter to the constructor.
Jan Jongboom 5:42f713b19337 44 HttpRequest* get_req = new HttpRequest(network, HTTP_GET, "http://httpbin.org/status/418");
Jan Jongboom 0:85fdc69bc10c 45
Jan Jongboom 5:42f713b19337 46 HttpResponse* get_res = get_req->send();
Jan Jongboom 5:42f713b19337 47 if (!get_res) {
Jan Jongboom 5:42f713b19337 48 printf("HttpRequest failed (error code %d)\n", get_req->get_error());
Jan Jongboom 5:42f713b19337 49 return 1;
Jan Jongboom 5:42f713b19337 50 }
Jan Jongboom 5:42f713b19337 51
Jan Jongboom 5:42f713b19337 52 printf("\n----- HTTP GET response -----\n");
Jan Jongboom 5:42f713b19337 53 dump_response(get_res);
Jan Jongboom 5:42f713b19337 54
Jan Jongboom 5:42f713b19337 55 delete get_req;
Jan Jongboom 0:85fdc69bc10c 56 }
Jan Jongboom 0:85fdc69bc10c 57
Jan Jongboom 17:97b1dd566b07 58 mbed_stats_heap_get(&heap_stats);
Jan Jongboom 17:97b1dd566b07 59 printf("[3] Heap: %lu / %lu, max=%lu\n", heap_stats.current_size, heap_stats.reserved_size, heap_stats.max_size);
Jan Jongboom 17:97b1dd566b07 60
Jan Jongboom 0:85fdc69bc10c 61 // POST request to httpbin.org
Jan Jongboom 5:42f713b19337 62 {
Jan Jongboom 5:42f713b19337 63 HttpRequest* post_req = new HttpRequest(network, HTTP_POST, "http://httpbin.org/post");
Jan Jongboom 5:42f713b19337 64 post_req->set_header("Content-Type", "application/json");
Jan Jongboom 0:85fdc69bc10c 65
Jan Jongboom 5:42f713b19337 66 const char body[] = "{\"hello\":\"world\"}";
Jan Jongboom 0:85fdc69bc10c 67
Jan Jongboom 5:42f713b19337 68 HttpResponse* post_res = post_req->send(body, strlen(body));
Jan Jongboom 5:42f713b19337 69 if (!post_res) {
Jan Jongboom 5:42f713b19337 70 printf("HttpRequest failed (error code %d)\n", post_req->get_error());
Jan Jongboom 5:42f713b19337 71 return 1;
Jan Jongboom 5:42f713b19337 72 }
Jan Jongboom 5:42f713b19337 73
Jan Jongboom 5:42f713b19337 74 printf("\n----- HTTP POST response -----\n");
Jan Jongboom 5:42f713b19337 75 dump_response(post_res);
Jan Jongboom 5:42f713b19337 76
Jan Jongboom 17:97b1dd566b07 77 mbed_stats_heap_get(&heap_stats);
Jan Jongboom 17:97b1dd566b07 78 printf("[4] Heap: %lu / %lu, max=%lu\n", heap_stats.current_size, heap_stats.reserved_size, heap_stats.max_size);
Jan Jongboom 17:97b1dd566b07 79
Jan Jongboom 5:42f713b19337 80 delete post_req;
Jan Jongboom 0:85fdc69bc10c 81 }
Jan Jongboom 0:85fdc69bc10c 82
Jan Jongboom 17:97b1dd566b07 83 mbed_stats_heap_get(&heap_stats);
Jan Jongboom 17:97b1dd566b07 84 printf("[5] Heap: %lu / %lu, max=%lu\n", heap_stats.current_size, heap_stats.reserved_size, heap_stats.max_size);
Jan Jongboom 17:97b1dd566b07 85
Jan Jongboom 0:85fdc69bc10c 86 Thread::wait(osWaitForever);
Jan Jongboom 0:85fdc69bc10c 87 }
Jan Jongboom 0:85fdc69bc10c 88
Jan Jongboom 0:85fdc69bc10c 89 #endif