Yes We Can
Coap Client and Server
Dependencies: DebugLib EthernetInterface cantcoap mbed-rtos
Fork of
yeswecancoap
by 
Sille Van Landschoot
YesWeCanCoap
Is a small coap client and server library for mbed based on the cantcoap library.
Import librarycantcoap
This is CoAP library with a focus on simplicity. It offers minimal CoAP PDU construction and decoding to and from byte buffers.
Last commit 30 Jan 2014 by 
Ashley Mills
yeswecancoap server enables easy implementation of coap resources, each with a dedicated function. When the function is registered by the server, it will do the rest.
Coap server example
Repository: YesWeCanCoap-example
Coap client example
under construction
Diff: server.cpp
- Revision:
- 1:ab04e3d36ade
- Child:
- 2:a03dd7e58d8f
- Child:
- 3:e03960f91763
diff -r 9f557e9a792f -r ab04e3d36ade server.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/server.cpp Tue Oct 20 18:57:05 2015 +0000
@@ -0,0 +1,68 @@
+#include "server.h"
+
+
+Server::Server()
+{
+ debug_init();
+ debug_set_newline("\r\n");
+
+ eth.init(); //Use DHCP
+ eth.connect();
+ printf("\r\nServer IP Address is %s\r\n", eth.getIPAddress());
+
+ server.bind(5683);
+}
+
+void Server::add(char* uri, void (*fnc)(Request), Method method)
+{
+ this->fnc = fnc;
+}
+
+void Server::waitForRequest()
+{
+ char buffer[256];
+ printf("\r\nWaiting for UDP packet...\r\n");
+ int size = server.receiveFrom(client, buffer, sizeof(buffer));
+ buffer[size] = '\0';
+
+ char uriBuffer[32];
+ int recvURILen;
+ int msgId;
+ uint8_t token[20];
+ int tokenLength;
+
+ CoapPDU *recvPDU = new CoapPDU((uint8_t*)buffer,256, size);
+ if(recvPDU->validate()) {
+ recvPDU->printHuman();
+
+ recvPDU->getURI(uriBuffer,32,&recvURILen);
+ msgId = recvPDU->getMessageID();
+ tokenLength = recvPDU->getTokenLength();
+ memcpy(token, recvPDU->getTokenPointer(), tokenLength);
+ }
+ delete recvPDU;
+
+ if(strcmp(uriBuffer, "/hello") == 0){
+ CoapPDU *pdu = new CoapPDU();
+ pdu->setType(CoapPDU::COAP_ACKNOWLEDGEMENT);
+ pdu->setCode(CoapPDU::COAP_CONTENT);
+ pdu->setMessageID(msgId);
+ pdu->setToken(token,4);
+
+ uint8_t txt[] = "Hello world";
+ pdu->setPayload(txt, 11);
+
+ server.sendTo(client, (char*) pdu->getPDUPointer(),pdu->getPDULength());
+ delete pdu;
+ } else {
+
+ CoapPDU *pdu = new CoapPDU();
+ pdu->setType(CoapPDU::COAP_ACKNOWLEDGEMENT);
+ pdu->setCode(CoapPDU::COAP_NOT_FOUND);
+ pdu->setMessageID(msgId);
+ pdu->setToken(token,4);
+
+ server.sendTo(client, (char*) pdu->getPDUPointer(),pdu->getPDULength());
+ delete pdu;
+ }
+}
\ No newline at end of file