'latin-1' codec can't encode character

[GeirFrimann]

I've created a REST API call from Thingsboard with the following included header:
Content-Type: application/json;charset=iso-8859-1 (tried with utf-8 as well)

Whenever any of the params for the sos-access contains swedish characters öäå, the lamda function raises this exception
(in this case for the letter å):
{
"errorMessage": "'latin-1' codec can't encode character '\\uffe5' in position 510: ordinal not in range(256)",
"errorType": "UnicodeEncodeError",
"stackTrace": [" File "/var/task/lambda_function.py", line 115, in lambda_handler\n AlarmResponse = client.send_alarm(\n", " File "/var/task/sos_access/client.py", line 176, in send_alarm\n return self._send_alarm(alarm_request)\n", " File "/var/task/sos_access/decorators.py", line 35, in retried_func\n result = func(*args, **kwargs)\n", " File "/var/task/sos_access/client.py", line 251, in _send_alarm\n alarm_response = self.transmit(\n", " File "/var/task/sos_access/client.py", line 367, in transmit\n transport.send(data.encode(self.ENCODING))\n"]
}

[Krolken]

I think you have an encoding/decoding error a bit up in your application.

\uffe5 Seems to be unicode for the "yen-sign",

print("\uffe5")
>￥

Encoding åäö is possibe in latin-1 (iso-8859-1)

"åäö".encode('latin-1')
b'\xe5\xe4\xf6'