1.. _coap-client-sample:
2
3CoAP client
4###########
5
6Overview
7********
8
9This sample is a simple CoAP client showing how to retrieve information
10from a resource.
11
12This demo assumes that the platform of choice has networking support,
13some adjustments to the configuration may be needed.
14
15This sample will make a GET request with path 'test' to the IPv6
16multicast address reserved for CoAP nodes, so the URI can be
17represented as:
18
19.. code-block:: none
20
21    coap://[ff02::fd]:5683/test
22
23Building and Running
24********************
25
26This project will print all the octets of the response received, more context can
27be obtained by using a tool such as tcpdump or wireshark.
28
29See the `net-tools`_ project for more details.
30
31This sample can be built and executed on QEMU or native_posix board as described
32in :ref:`networking_with_host`.
33
34Sample output
35=============
36
37.. code-block:: console
38
39  reply: 60 00 00 00 00 24 11 40 fe 80 00 00 00 00 00 00 5c 25 e2 ff fe
40  15 01 01 fe 80 00 00 00 00 00 00 5c 25 e2 ff fe 15 01 01 16 33 16 33
41  00 24 3d 86 60 40 00 01 ff 54 79 70 65 3a 20 30 0a 43 6f 64 65 3a 20
42  31 0a 4d 49 44 3a 20 31 0a (76 bytes)
43
44.. note: The values shown above might differ.
45
46.. _`net-tools`: https://github.com/zephyrproject-rtos/net-tools
47