main-http-socket-reuse.cpp

00001 #include "select-demo.h"
00002 
00003 #if DEMO == DEMO_HTTP_SOCKET_REUSE
00004 
00005 #include "mbed.h"
00006 #include "network-helper.h"
00007 #include "http_request.h"
00008 
00009 void dump_response(HttpResponse* res) {
00010     printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());
00011 
00012     printf("Headers:\n");
00013     for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
00014         printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
00015     }
00016     printf("\nBody (%d bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
00017 }
00018 
00019 int main() {
00020     NetworkInterface* network = connect_to_default_network_interface();
00021     if (!network) {
00022         printf("Cannot connect to the network, see serial output\n");
00023         return 1;
00024     }
00025 
00026     // Create a TCP socket
00027     printf("\n----- Setting up TCP connection -----\n");
00028 
00029     TCPSocket* socket = new TCPSocket();
00030     nsapi_error_t open_result = socket->open(network);
00031     if (open_result != 0) {
00032         printf("Opening TCPSocket failed... %d\n", open_result);
00033         return 1;
00034     }
00035 
00036     nsapi_error_t connect_result = socket->connect("httpbin.org", 80);
00037     if (connect_result != 0) {
00038         printf("Connecting over TCPSocket failed... %d\n", connect_result);
00039         return 1;
00040     }
00041 
00042     printf("Connected over TCP to httpbin.org:80\n");
00043 
00044     // Do a GET request to httpbin.org
00045     {
00046         HttpRequest* get_req = new HttpRequest(socket, HTTP_GET, "http://httpbin.org/status/418");
00047 
00048         // By default the body is automatically parsed and stored in a string, this is memory heavy.
00049         // To receive chunked response, pass in a callback as third parameter to 'send'.
00050         HttpResponse* get_res = get_req->send();
00051         if (!get_res) {
00052             printf("HttpRequest failed (error code %d)\n", get_req->get_error());
00053             return 1;
00054         }
00055 
00056         printf("\n----- HTTP GET response -----\n");
00057         dump_response(get_res);
00058 
00059         delete get_req;
00060     }
00061 
00062     // POST request to httpbin.org
00063     {
00064         HttpRequest* post_req = new HttpRequest(socket, HTTP_POST, "http://httpbin.org/post");
00065         post_req->set_header("Content-Type", "application/json");
00066 
00067         const char body[] = "{\"hello\":\"world\"}";
00068 
00069         HttpResponse* post_res = post_req->send(body, strlen(body));
00070         if (!post_res) {
00071             printf("HttpRequest failed (error code %d)\n", post_req->get_error());
00072             return 1;
00073         }
00074 
00075         printf("\n----- HTTP POST response -----\n");
00076         dump_response(post_res);
00077 
00078         delete post_req;
00079     }
00080 
00081     socket->close();
00082     delete socket;
00083 
00084     wait(osWaitForever);
00085 }
00086 
00087 #endif