Thingworx API won't work over self signed certificate

I have a web service which I created using Laravel's Lumen. It receives data and one it does, it sends it to Thingworx via the API. While I was on Composers which use a valid certificate, I had no issues with this, but now I am on a self signed certificate and the API request won't go through. In lumen, I am using cURL to make the HTTP request. I have added 

curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);

lines to my to my cURL request as suggested by stack overflow. I have added 

x-thingworx-session=true

to my url as suggested by Thignworx community. Still, the error persists. I have opened the Security Log to see the output and it is saying 

 Error	No authType or appKey parameter has been specified for Authentication Scheme: AUTH_THINGWORX_APPKEY

I have the appKey parameter specified in the header.

Does anyone have a solution to my problem?