Simple Webserver example for wiznet W5500 (SPI Ethernet chip) mbed OS 5 - HTTP 1.1 and multi-threaded
Dependencies: W5500Interface easy-connect mbed-http
Fork of http-webserver-example by
mbed-os-example-http-server
This application demonstrates how to run an HTTP server on an mbed OS 5 device & WIZnet W5500 Ethernet components.
Request parsing is done through [nodejs/http-parser](https://github.com/nodejs/http-parser).
To build
- Open ``mbed_app.json`` and change the `network-interface` option to your connectivity method ([more info](https://github.com/ARMmbed/easy-connect)).
- Build the project in the online compiler or using mbed CLI.
- Flash the project to your development board.
- Attach a serial monitor to your board to see the debug messages.
Tested on
- NUCLEO_F411RE with W5500 Ethernet shield.
- For W5500, you need the following libraries.
Import libraryW5500Interface
W5500 driver for mbed OS 5
Import libraryeasy-connect
Modified version of easy-connect for W5500 Ethernet components
But every networking stack that supports the [mbed OS 5 NetworkInterface API](https://docs.mbed.com/docs/mbed-os-api-reference/en/latest/APIs/communication/network_sockets/) should work.
Test Result
source/main.cpp
- Committer:
- Bongjun
- Date:
- 2018-08-10
- Revision:
- 5:ac9aebd61a31
- Parent:
- 2:c8eff436549f
File content as of revision 5:ac9aebd61a31:
#include "mbed.h" #include "easy-connect.h" #include "http_server.h" #include "http_response_builder.h" //Serial pc(USBTX, USBRX); //DigitalOut led(D1); //confict with W5500 SPI CS pin, so D1 pin can't use for this example. // Requests come in here void request_handler(ParsedHttpRequest* request, TCPSocket* socket) { printf("Request came in: %s %s\n", http_method_str(request->get_method()), request->get_url().c_str()); if (request->get_method() == HTTP_GET && request->get_url() == "/") { HttpResponseBuilder builder(200); builder.set_header("Content-Type", "text/html; charset=utf-8"); char response[] = "<html><head><title>Hello from mbed</title></head>" "<body>" "<h1>mbed webserver</h1>" "<button id=\"toggle\">Toggle LED</button>" "<script>document.querySelector('#toggle').onclick = function() {" "var x = new XMLHttpRequest(); x.open('POST', '/toggle'); x.send();" "}</script>" "</body></html>"; builder.send(socket, response, sizeof(response) - 1); } else if (request->get_method() == HTTP_POST && request->get_url() == "/toggle") { printf("toggle LED called\n"); //led = !led; HttpResponseBuilder builder(200); builder.send(socket, NULL, 0); } else { HttpResponseBuilder builder(404); builder.send(socket, NULL, 0); } } int main() { // pc.baud(115200); // Connect to the network (see mbed_app.json for the connectivity method used) NetworkInterface* network = easy_connect(true); if (!network) { printf("Cannot connect to the network, see serial output\n"); return 1; } HttpServer server(network); nsapi_error_t res = server.start(8080, &request_handler); if (res == NSAPI_ERROR_OK) { printf("Server is listening at http://%s:8080\n", network->get_ip_address()); } else { printf("Server could not be started... %d\n", res); } wait(osWaitForever); }