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@5:ac9aebd61a31, 2018-08-10 (annotated)
- Committer:
- Bongjun
- Date:
- Fri Aug 10 08:52:29 2018 +0000
- Revision:
- 5:ac9aebd61a31
- Parent:
- 2:c8eff436549f
remove some comments
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
Jan Jongboom |
0:41f820ea137a | 1 | #include "mbed.h" |
Jan Jongboom |
0:41f820ea137a | 2 | #include "easy-connect.h" |
Jan Jongboom |
0:41f820ea137a | 3 | #include "http_server.h" |
Jan Jongboom |
0:41f820ea137a | 4 | #include "http_response_builder.h" |
Jan Jongboom |
0:41f820ea137a | 5 | |
Bongjun | 2:c8eff436549f | 6 | //Serial pc(USBTX, USBRX); |
Bongjun | 2:c8eff436549f | 7 | //DigitalOut led(D1); |
Bongjun | 5:ac9aebd61a31 | 8 | //confict with W5500 SPI CS pin, so D1 pin can't use for this example. |
Jan Jongboom |
0:41f820ea137a | 9 | |
Jan Jongboom |
0:41f820ea137a | 10 | // Requests come in here |
Jan Jongboom |
0:41f820ea137a | 11 | void request_handler(ParsedHttpRequest* request, TCPSocket* socket) { |
Jan Jongboom |
0:41f820ea137a | 12 | |
Jan Jongboom |
0:41f820ea137a | 13 | printf("Request came in: %s %s\n", http_method_str(request->get_method()), request->get_url().c_str()); |
Jan Jongboom |
0:41f820ea137a | 14 | |
Jan Jongboom |
0:41f820ea137a | 15 | if (request->get_method() == HTTP_GET && request->get_url() == "/") { |
Jan Jongboom |
0:41f820ea137a | 16 | HttpResponseBuilder builder(200); |
Jan Jongboom |
0:41f820ea137a | 17 | builder.set_header("Content-Type", "text/html; charset=utf-8"); |
Jan Jongboom |
0:41f820ea137a | 18 | |
Jan Jongboom |
0:41f820ea137a | 19 | char response[] = "<html><head><title>Hello from mbed</title></head>" |
Jan Jongboom |
0:41f820ea137a | 20 | "<body>" |
Jan Jongboom |
0:41f820ea137a | 21 | "<h1>mbed webserver</h1>" |
Jan Jongboom |
0:41f820ea137a | 22 | "<button id=\"toggle\">Toggle LED</button>" |
Jan Jongboom |
0:41f820ea137a | 23 | "<script>document.querySelector('#toggle').onclick = function() {" |
Jan Jongboom |
0:41f820ea137a | 24 | "var x = new XMLHttpRequest(); x.open('POST', '/toggle'); x.send();" |
Jan Jongboom |
0:41f820ea137a | 25 | "}</script>" |
Jan Jongboom |
0:41f820ea137a | 26 | "</body></html>"; |
Jan Jongboom |
0:41f820ea137a | 27 | |
Jan Jongboom |
0:41f820ea137a | 28 | builder.send(socket, response, sizeof(response) - 1); |
Jan Jongboom |
0:41f820ea137a | 29 | } |
Jan Jongboom |
0:41f820ea137a | 30 | else if (request->get_method() == HTTP_POST && request->get_url() == "/toggle") { |
Jan Jongboom |
0:41f820ea137a | 31 | printf("toggle LED called\n"); |
Bongjun | 2:c8eff436549f | 32 | //led = !led; |
Jan Jongboom |
0:41f820ea137a | 33 | HttpResponseBuilder builder(200); |
Jan Jongboom |
0:41f820ea137a | 34 | builder.send(socket, NULL, 0); |
Jan Jongboom |
0:41f820ea137a | 35 | } |
Jan Jongboom |
0:41f820ea137a | 36 | else { |
Jan Jongboom |
0:41f820ea137a | 37 | HttpResponseBuilder builder(404); |
Jan Jongboom |
0:41f820ea137a | 38 | builder.send(socket, NULL, 0); |
Jan Jongboom |
0:41f820ea137a | 39 | } |
Jan Jongboom |
0:41f820ea137a | 40 | } |
Jan Jongboom |
0:41f820ea137a | 41 | |
Jan Jongboom |
0:41f820ea137a | 42 | int main() { |
Bongjun | 2:c8eff436549f | 43 | // pc.baud(115200); |
Jan Jongboom |
0:41f820ea137a | 44 | |
Bongjun | 2:c8eff436549f | 45 | // Connect to the network (see mbed_app.json for the connectivity method used) |
Bongjun | 2:c8eff436549f | 46 | NetworkInterface* network = easy_connect(true); |
Bongjun | 2:c8eff436549f | 47 | if (!network) { |
Bongjun | 2:c8eff436549f | 48 | printf("Cannot connect to the network, see serial output\n"); |
Bongjun | 2:c8eff436549f | 49 | return 1; |
Bongjun | 2:c8eff436549f | 50 | } |
Bongjun | 2:c8eff436549f | 51 | |
Bongjun | 2:c8eff436549f | 52 | HttpServer server(network); |
Bongjun | 2:c8eff436549f | 53 | nsapi_error_t res = server.start(8080, &request_handler); |
Bongjun | 2:c8eff436549f | 54 | |
Bongjun | 2:c8eff436549f | 55 | if (res == NSAPI_ERROR_OK) { |
Bongjun | 2:c8eff436549f | 56 | printf("Server is listening at http://%s:8080\n", network->get_ip_address()); |
Bongjun | 2:c8eff436549f | 57 | } |
Bongjun | 2:c8eff436549f | 58 | else { |
Bongjun | 2:c8eff436549f | 59 | printf("Server could not be started... %d\n", res); |
Bongjun | 2:c8eff436549f | 60 | } |
Bongjun | 2:c8eff436549f | 61 | |
Bongjun | 2:c8eff436549f | 62 | wait(osWaitForever); |
Bongjun | 5:ac9aebd61a31 | 63 | |
Jan Jongboom |
0:41f820ea137a | 64 | } |