yoshi kuwae yoshi / Mbed OS http-example

a

Dependencies:   mbed-http

Fork of http-example by sandbox

source/main-http-socket-reuse.cpp@30:d4efad3e89f1, 2018-08-24 (annotated)

Committer:
kuwaeyoshi
Date:
Fri Aug 24 05:03:58 2018 +0000
Revision:
30:d4efad3e89f1
Parent:
29:5ad8f931e4ff 
a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
Jan Jongboom 12:4c226ca06191 1 #include "select-demo.h"
Jan Jongboom 12:4c226ca06191 2
Jan Jongboom 12:4c226ca06191 3 #if DEMO == DEMO_HTTP_SOCKET_REUSE
Jan Jongboom 12:4c226ca06191 4
Jan Jongboom 12:4c226ca06191 5 #include "mbed.h"
Jan Jongboom 12:4c226ca06191 6 #include "easy-connect.h"
Jan Jongboom 12:4c226ca06191 7 #include "http_request.h"
Jan Jongboom 12:4c226ca06191 8
Jan Jongboom 12:4c226ca06191 9 void dump_response(HttpResponse* res) {
Jan Jongboom 12:4c226ca06191 10 printf("Status: %d - %s\n", res->get_status_code(), res->get_status_message().c_str());
Jan Jongboom 12:4c226ca06191 11
Jan Jongboom 12:4c226ca06191 12 printf("Headers:\n");
Jan Jongboom 12:4c226ca06191 13 for (size_t ix = 0; ix < res->get_headers_length(); ix++) {
Jan Jongboom 12:4c226ca06191 14 printf("\t%s: %s\n", res->get_headers_fields()[ix]->c_str(), res->get_headers_values()[ix]->c_str());
Jan Jongboom 12:4c226ca06191 15 }
Jan Jongboom 12:4c226ca06191 16 printf("\nBody (%d bytes):\n\n%s\n", res->get_body_length(), res->get_body_as_string().c_str());
Jan Jongboom 12:4c226ca06191 17 }
Jan Jongboom 12:4c226ca06191 18
Jan Jongboom 12:4c226ca06191 19 int main() {
Jan Jongboom 12:4c226ca06191 20 // Connect to the network (see mbed_app.json for the connectivity method used)
Jan Jongboom 15:65a49b573ba5 21 NetworkInterface* network = easy_connect(true);
Jan Jongboom 12:4c226ca06191 22 if (!network) {
Jan Jongboom 12:4c226ca06191 23 printf("Cannot connect to the network, see serial output");
Jan Jongboom 12:4c226ca06191 24 return 1;
Jan Jongboom 12:4c226ca06191 25 }
Jan Jongboom 12:4c226ca06191 26
Jan Jongboom 12:4c226ca06191 27 // Create a TCP socket
Jan Jongboom 12:4c226ca06191 28 printf("\n----- Setting up TCP connection -----\n");
Jan Jongboom 12:4c226ca06191 29
Jan Jongboom 12:4c226ca06191 30 TCPSocket* socket = new TCPSocket();
Jan Jongboom 12:4c226ca06191 31 nsapi_error_t open_result = socket->open(network);
Jan Jongboom 12:4c226ca06191 32 if (open_result != 0) {
Jan Jongboom 12:4c226ca06191 33 printf("Opening TCPSocket failed... %d\n", open_result);
Jan Jongboom 12:4c226ca06191 34 return 1;
Jan Jongboom 12:4c226ca06191 35 }
Jan Jongboom 12:4c226ca06191 36
Jan Jongboom 12:4c226ca06191 37 nsapi_error_t connect_result = socket->connect("httpbin.org", 80);
Jan Jongboom 12:4c226ca06191 38 if (connect_result != 0) {
Jan Jongboom 12:4c226ca06191 39 printf("Connecting over TCPSocket failed... %d\n", connect_result);
Jan Jongboom 12:4c226ca06191 40 return 1;
Jan Jongboom 12:4c226ca06191 41 }
Jan Jongboom 12:4c226ca06191 42
Jan Jongboom 12:4c226ca06191 43 printf("Connected over TCP to httpbin.org:80\n");
Jan Jongboom 12:4c226ca06191 44
Jan Jongboom 12:4c226ca06191 45 // Do a GET request to httpbin.org
Jan Jongboom 12:4c226ca06191 46 {
Jan Jongboom 12:4c226ca06191 47 HttpRequest* get_req = new HttpRequest(socket, HTTP_GET, "http://httpbin.org/status/418");
Jan Jongboom 12:4c226ca06191 48
Jan Jongboom 12:4c226ca06191 49 // By default the body is automatically parsed and stored in a string, this is memory heavy.
Jan Jongboom 12:4c226ca06191 50 // To receive chunked response, pass in a callback as third parameter to 'send'.
Jan Jongboom 12:4c226ca06191 51 HttpResponse* get_res = get_req->send();
Jan Jongboom 12:4c226ca06191 52 if (!get_res) {
Jan Jongboom 12:4c226ca06191 53 printf("HttpRequest failed (error code %d)\n", get_req->get_error());
Jan Jongboom 12:4c226ca06191 54 return 1;
Jan Jongboom 12:4c226ca06191 55 }
Jan Jongboom 12:4c226ca06191 56
Jan Jongboom 12:4c226ca06191 57 printf("\n----- HTTP GET response -----\n");
Jan Jongboom 12:4c226ca06191 58 dump_response(get_res);
Jan Jongboom 12:4c226ca06191 59
Jan Jongboom 12:4c226ca06191 60 delete get_req;
Jan Jongboom 12:4c226ca06191 61 }
Jan Jongboom 12:4c226ca06191 62
Jan Jongboom 12:4c226ca06191 63 // POST request to httpbin.org
Jan Jongboom 12:4c226ca06191 64 {
Jan Jongboom 12:4c226ca06191 65 HttpRequest* post_req = new HttpRequest(socket, HTTP_POST, "http://httpbin.org/post");
Jan Jongboom 12:4c226ca06191 66 post_req->set_header("Content-Type", "application/json");
Jan Jongboom 12:4c226ca06191 67
Jan Jongboom 12:4c226ca06191 68 const char body[] = "{\"hello\":\"world\"}";
Jan Jongboom 12:4c226ca06191 69
Jan Jongboom 12:4c226ca06191 70 HttpResponse* post_res = post_req->send(body, strlen(body));
Jan Jongboom 12:4c226ca06191 71 if (!post_res) {
Jan Jongboom 12:4c226ca06191 72 printf("HttpRequest failed (error code %d)\n", post_req->get_error());
Jan Jongboom 12:4c226ca06191 73 return 1;
Jan Jongboom 12:4c226ca06191 74 }
Jan Jongboom 12:4c226ca06191 75
Jan Jongboom 12:4c226ca06191 76 printf("\n----- HTTP POST response -----\n");
Jan Jongboom 12:4c226ca06191 77 dump_response(post_res);
Jan Jongboom 12:4c226ca06191 78
Jan Jongboom 12:4c226ca06191 79 delete post_req;
Jan Jongboom 12:4c226ca06191 80 }
Jan Jongboom 12:4c226ca06191 81
Jan Jongboom 12:4c226ca06191 82 delete socket;
Jan Jongboom 12:4c226ca06191 83
Jan Jongboom 28:9bccd981a393 84 wait(osWaitForever);
Jan Jongboom 12:4c226ca06191 85 }
Jan Jongboom 12:4c226ca06191 86
Jan Jongboom 12:4c226ca06191 87 #endif