lcoap Pure Lua CoAP Library

About The Project

lcoap is a pure Lua (no direct C dependnecies) implementation of the CoAP protocol as described in RFC7252.

Currently it provides:

• Implementation of core protocol message packing/parsing along with required constants suitable for building a CoAP client or server.
• A basic client implementation built on luasocket.

Example

The following is a basic example showing usage of the client APIs to perform a basic GET request and print the payload 10 times:

local coap_client = require('lcoap.client')

for _=1,10 do
    local rx, err = coap_client.get("coap://192.168.1.175/pot")
    if not rx then
        print("CoAP Get Failed: " .. err)
    else
        print("Potentiometer Value: " .. rx.payload)
    end
    os.execute("sleep 2")
end

Installation

Once release, the library will be available via luarocks.

Contributing

Contributions to the project and bug reports are very welcome. Bug reports may be filed by creating an issue on Github and PRs are welcome as well!

License

Distributed under the MIT License. See LICENSE for more information.