Added some more description to README.

Makefile update is about changing ifdef to ifeq so that users don't be misleaded.

examples/rest-example/Makefile

@@ -7,11 +7,11 @@ CONTIKI=../..
 WITH_UIP6=1
 UIP_CONF_IPV6=1
 
-WITH_COAP = 1
+WITH_COAP = 0
 
 CFLAGS += -DPROJECT_CONF_H=1
 
-ifdef WITH_COAP 
+ifeq ($(WITH_COAP), 1)
 CFLAGS += -DWITH_COAP
 APPS = rest-coap
 else

examples/rest-example/README

@@ -1,4 +1,6 @@
-Open a terminal and go to "examples/rest-example/" directory.
+
+
+Open a terminal and go to "<CONTIKI_HOME>/examples/rest-example/" directory.
 
 MAIN EXAMPLE:
 rest-server-example.c : A RESTful server example showing how to use the REST layer to develop server-side applications (possible to run it over either COAP or HTTP)
@@ -16,9 +18,13 @@ Start COOJA and load the simulation "rest-server-example.csc" by the following c
 > make TARGET=cooja rest-server-example.csc
 After loading the cooja file, open another another terminal pointing to the same directory and connect to the COOJA simulation using tunslip6:
 >make connect-router-cooja
-Now you need to use a COAP or HTTP client to interact with the COOJA nodes running REST code.
+
+Now, you need to use a COAP or HTTP client to interact with the COOJA nodes running REST code.
 In this setting, two servers are available:
 IP addresses are aaaa::0212:7402:0002:0202 and aaaa::0212:7403:0003:0303. COAP uses 61616, whereas HTTP uses 8080 port in default configuration.
+First, ping the COOJA nodes to test the connectivity.
+>ping6 aaaa::0212:7402:0002:0202
+>ping6 aaaa::0212:7403:0003:0303
 
 HTTP Examples
 You can use curl as an http client to interact with the COOJA motes running REST code.
@@ -27,6 +33,8 @@ You can use curl as an http client to interact with the COOJA motes running REST
 >curl -H "User-Agent: curl" aaaa::0212:7402:0002:0202:8080/.well-known/core -i
 >curl -X POST -H "User-Agent: curl" aaaa::0212:7402:0002:0202:8080/helloworld #method not allowed
 
+COAP Examples
+You should run a COAP client on your computer. You can use the URLs and methods provided above in HTTP examples to test the COAP Server.
 
 Accessing the server inside the sensor network:
 (Note: Provided only for COAP implementation)
@@ -36,6 +44,10 @@ coap-client-server-example.csc : Runs rest-server-example.c as the server (over
 in one node and coap-client-example.c as the client (IP: aaaa::0212:7402:0002:0202) in another node. 
 Client periodically accesses resources of server and prints the payload.
 
+Note: If the generated binary is bigger than the MOTE code size, then you will get a "region text is full" error.
+Right now, REST+HTTP example uses (Contiki + ContikiMAC + uIPv6 + RPL + HTTP Server + REST Layer) which does not fit in Tmote Sky memory. 
+To save same code space and make the example fit, you can define static routes rather than using RPL or use nullrdc rather than ContikiMAC.
+
 
 To run REST server on real nodes under Linux
 --------------------------------------------
@@ -51,4 +63,16 @@ To run REST server on real nodes under Linux
 
 4. Reconnect the motes, reboot them and note their IP addresses.
 
-5. Remaining parts are the same with the COOJA example. (i.e. if it is a COAP Server, it is available at <NODE_IP_ADDR>:61616)
+5. Test the connectivity by pinging them.
+>ping6 <IPv6 Address of the MOTE>
+
+5. Remaining parts are the same with the COOJA example. (i.e. if it is a COAP Server, it is available at <NODE_IP_ADDR>:61616)
+
+
+ToDo
+*Better option handling needed - ex: critical options are not differentiated for now. Need to add support for some such as Tokens.
+*Reilable message sending is missing. i.e. client example should resend request in case ACK does not arrive. Same for server pushing (in case of subscriptions)
+*Add Block transfer example
+*Add Subscription example
+*Add an Android/Java COAP Client to Contikiprojects to be able to interact with Contiki.
+*COAP-specific Method Codes