ssl issue

I am tryign to connect NodeMCU ESP8266 with AWS IOT. I followed your guide at https://forum.pycom.io/topic/908/umqtt-aws-iot.

When trying to connect I am getting an following error

    File "/lib/simple.py", line 59, in connect
TypeError: extra keyword arguments given

I have already tested AWS IOT connection on PC with AWS SDK and it seems to work fine. So issue seems to be with umqtt clinet and ussl. Any help would be appreciated.

[juwul]

@agargautam I think it is concerning the step 2 under the header "The Code" in my guide on Pycom forum.

Can I have a look at your configuration of the SSL for MQTTClient?

Below is the sample code. repoducing just the relevent portion. I tried using 'simple.py' from your repository as well as the offical umqtt simple library. Both giving the same error mentioned above.

Required certicates are in '/cert' directory.

from simple import MQTTClient
HOST = {my amazon endpoint}
TOPIC = "sensor_data"

connection = MQTTClient(client_id=TOPIC, server=HOST, port=8883, keepalive=10000, ssl=True, ssl_params={"certfile": "/cert/certificate.pem", "keyfile": "/cert/private.pem", "ca_certs": "/cert/aws-iot-rootCA.pem"})

connection.connect()

[juwul]

@agargautam Is your certificates placed in the right folder? I can see that your ssl_params are missing folder /flash before the folder you have created for them.

Below are the differences between our calls:

YOURS
ssl_params={"certfile": "/cert/certificate.pem", "keyfile": "/cert/private.pem", "ca_certs": "/cert/aws-iot-rootCA.pem"})

MINE
ssl_params={ "certfile":"/flash/cert/cert.pem", "keyfile":"/flash/cert/privkey.pem", "ca_certs":"/flash/cert/aws-iot-rootCA.ca" })

[kkumar326]

@agargautam were you able to fix this problem?

[Sunrise17]

I am also receiving same error as Error in mqtt connect: [Exception] TypeError: extra keyword arguments given. My settings as shown below, Is there some solution about this error?

MQTT_CLIENT_ID = "23876283476233"
MQTT_HOST = "yourSpecificEndPointHere.iot.eu-west-1.amazonaws.com"
MQTT_PORT = 8883

client = MQTTClient(client_id=MQTT_CLIENT_ID, server=MQTT_HOST, port=MQTT_PORT, keepalive=10000, ssl=True, ssl_params={"certfile":"/flash/cert/deviceCertAndCACert.pem", "keyfile":"/flash/cert/deviceCert.key", "ca_certs":"/flash/cert/root.pem"})

(With these 2 certs and key, i am successfully connecting to AWS IoT from MQTT.fx)

[sp0f]

Same problem here. I believe i found the answer: micropython/micropython#2781. It looks like we can't use TLS client authentication with ussl.wrap_socket() on ESP8266 ... so we can't use it with AWS IoT mqtt at all :(

[Sunrise17]

Is it possible to make TLS connection to AWS IoT with ESP32 using umqtt?

[Sunrise17]

@juwul , i continue to get same error on ESP32 while executing the method below;
self.sock = ussl.wrap_socket(self.sock, **self.ssl_params)

This is the print out of ssl_params;
{'keyfile': '/flash/cert/deviceCert.key', 'certfile': '/flash/cert/deviceCertAndCACert.pem', 'ca_certs': '/flash/cert/root.pem'}

Traceback (most recent call last):
  File "main.py", line 224, in <module>
  File "main.py", line 182, in mqtt_connect
  File "/lib/simple.py", line 62, in connect
TypeError: extra keyword arguments given
MicroPython v1.9.3-286-gbbb08431 on 2018-02-09; ESP32 module with ESP32

[janoist1]

Any news on this? I'm still getting the TypeError: extra keyword arguments given error. :((