CoAP upload
Overview
This sample demonstrates the use of the CoAP client API to upload a content to a CoAP server with PUT requests. The sample showcases various methods of uploading a content:
Short upload with payload pointer,
Short upload with payload callback,
Block transfer upload with payload pointer,
Block transfer upload with payload callback.
The sample is compatible with the CoAP service sample, or can run against a standalone CoAP server, for example aiocoap.
Requirements
Networking with the host system, Networking with native_sim board
or, a board with hardware networking (tested on nrf7002dk board with
wifi-ipv4snippet)Network connection between the board and a host running a CoAP server
Build and Running
Build the CoAP upload sample application like this:
west build -b <board to use> samples/net/sockets/coap_upload
The easiest way to run this sample application is to build and run it as a native_sim application. Some setup is required as described in Networking with native_sim board.
Download a CoAP server application, for example aiocoap (Python).
Using aiocoap:
python -m pip install "aiocoap[all]"
mkdir file_root
aiocoap-fileserver --write file_root
Launch net-setup.sh in net-tools:
./net-setup.sh
Build and run the CoAP upload sample application for native_sim like this:
west build -b native_sim samples/net/sockets/coap_upload
west build -t run
Sample output
[00:00:00.000,000] <inf> net_config: Initializing network
[00:00:00.000,000] <inf> net_config: IPv4 address: 192.0.2.1
[00:00:00.110,000] <inf> net_config: IPv6 address: 2001:db8::1
[00:00:00.110,000] <inf> net_config: IPv6 address: 2001:db8::1
[00:00:00.110,000] <inf> net_samples_common: Network connectivity established and IP address assigned
[00:00:00.110,000] <inf> net_samples_common: Waiting for network...
[00:00:00.110,000] <inf> coap_upload:
[00:00:00.110,000] <inf> coap_upload: * Starting CoAP upload using IPv4
[00:00:00.110,000] <inf> coap_upload:
[00:00:00.110,000] <inf> coap_upload: ** CoAP upload short
[00:00:00.180,000] <inf> coap_upload: CoAP upload short done in 70 ms
[00:00:00.180,000] <inf> coap_upload:
[00:00:00.180,000] <inf> coap_upload: ** CoAP upload short with callback
[00:00:00.240,000] <inf> coap_upload: CoAP upload short with callback done in 60 ms
[00:00:00.240,000] <inf> coap_upload:
[00:00:00.240,000] <inf> coap_upload: ** CoAP upload blockwise
[00:00:00.300,000] <inf> coap_upload: CoAP upload blockwise ongoing, sent 128 bytes so far
[00:00:00.360,000] <inf> coap_upload: CoAP upload blockwise ongoing, sent 256 bytes so far
[00:00:00.420,000] <inf> coap_upload: CoAP upload blockwise ongoing, sent 384 bytes so far
[00:00:00.480,000] <inf> coap_upload: CoAP upload blockwise done in 240 ms
[00:00:00.480,000] <inf> coap_upload:
[00:00:00.480,000] <inf> coap_upload: ** CoAP upload blockwise with callback
[00:00:00.540,000] <inf> coap_upload: CoAP upload blockwise with callback ongoing, sent 128 bytes so far
[00:00:00.600,000] <inf> coap_upload: CoAP upload blockwise with callback ongoing, sent 256 bytes so far
[00:00:00.660,000] <inf> coap_upload: CoAP upload blockwise with callback ongoing, sent 384 bytes so far
[00:00:00.720,000] <inf> coap_upload: CoAP upload blockwise with callback done in 240 ms
[00:00:01.230,000] <inf> coap_upload:
[00:00:01.230,000] <inf> coap_upload: * Starting CoAP upload using IPv6
[00:00:01.230,000] <inf> coap_upload:
[00:00:01.230,000] <inf> coap_upload: ** CoAP upload short
[00:00:01.320,000] <inf> coap_upload: CoAP upload short done in 90 ms
[00:00:01.320,000] <inf> coap_upload:
[00:00:01.320,000] <inf> coap_upload: ** CoAP upload short with callback
[00:00:01.380,000] <inf> coap_upload: CoAP upload short with callback done in 60 ms
[00:00:01.380,000] <inf> coap_upload:
[00:00:01.380,000] <inf> coap_upload: ** CoAP upload blockwise
[00:00:01.440,000] <inf> coap_upload: CoAP upload blockwise ongoing, sent 128 bytes so far
[00:00:01.500,000] <inf> coap_upload: CoAP upload blockwise ongoing, sent 256 bytes so far
[00:00:01.560,000] <inf> coap_upload: CoAP upload blockwise ongoing, sent 384 bytes so far
[00:00:01.620,000] <inf> coap_upload: CoAP upload blockwise done in 240 ms
[00:00:01.620,000] <inf> coap_upload:
[00:00:01.620,000] <inf> coap_upload: ** CoAP upload blockwise with callback
[00:00:01.680,000] <inf> coap_upload: CoAP upload blockwise with callback ongoing, sent 128 bytes so far
[00:00:01.740,000] <inf> coap_upload: CoAP upload blockwise with callback ongoing, sent 256 bytes so far
[00:00:01.800,000] <inf> coap_upload: CoAP upload blockwise with callback ongoing, sent 384 bytes so far
[00:00:01.860,000] <inf> coap_upload: CoAP upload blockwise with callback done in 240 ms