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The default options for methods get, post, delete are set to CON (confirmable) in the implementation of the microCoAPy.

To send NONCON (Non-Confirmable) message someone needs to use the generic function microcoapy.Coap.send().

#example
requestId = client.send(_SERVER_IP, _SERVER_PORT, url,  microcoapy.coap_macros.COAP_TYPE.COAP_NONCON,  microcoapy.coap_macros.COAP_METHOD.COAP_GET, bytearray(), None,  microcoapy.coap_macros.COAP_CONTENT_FORMAT.COAP_NONE, None)
    

When this function is used with NONCON flag, the response Callback is never called because of the following lines in the microcoapy.py

Needs to be addressed.

Hi,
I am using your lib as a client for a small project of mine --> https://github.com/Trifunik/condensation_alert.
Do you know any elegant way to get the coapPacket.messageid from the get function?
I want to be sure that the payload is the response to the wright GET request, because I have sometimes a race condition between two GET requests.

Many thanks in advance!
Nikola

hi have some issue installing external package on micropython.
Can yoyu give some int ?

In case specific network interface is not mapped to internal IP stack and not available through socket module it would be beneficial if custom methods for socket operations could be used. E.g. they could make use of socket API of cellular modem controlled via AT commands.

Hello,

I'd like to ask if there is any scenario that handleIncomingRequest is called for client side?
It seems that function purpose is to handle requests (eg. GET) on server side. Am I right?
However handleIncomingRequest is checking self.responseCallback which is for client side.

If Coap can act as an server and client in a single instance (can't it?) and if self.responseCallback is set and if requested url is unknown (not in self.callbacks) then the function returns False and sendResponse indication "not found" is not called.

        if urlCallback is None:
            if self.responseCallback:
                # The incoming request may be a response, let the responseCallback handle it.
                return False
            print('Callback for url [', url, "] not found")
            self.sendResponse(sourceIp, sourcePort, requestPacket.messageid,
                              None, macros.COAP_RESPONSE_CODE.COAP_NOT_FOUND,
                              macros.COAP_CONTENT_FORMAT.COAP_NONE, requestPacket.token)

So my point is that either handleIncomingRequest shall not be called for non requests (ie. GET) or above logic shall be changed to exclude server requests:

            if self.responseCallback and macros.COAP_METHOD.COAP_GET != requestPacket.method:
                # The incoming request may be a response, let the responseCallback handle it.
                return False

Please share your thoughts.

Best regards

Hello!

In an attempt to test and play around with CoAP on the ESP32 I stumbled across this project.

However, when trying to use the example files my IDEs are all unable to obtain or install the library, stating a missing setup.py or "pyproject.toml".

I have attempted to use both Thonny, vscode, and straight CLI.

Would you be able to look at the issue or provide installation instructions?

Thank you!

I saw a method sendPacket in the code, I wanted to use it, but I had to look at the code further, it turns out this method has privacy. Do you think this is a bad method to use? 🤔