Error: unable to get local issuer certificate

[liub5]

I use Postman to send a GET request to visit our Qlik server endpoint. The request is blocked by the error: unable to get local issuer certificate. 

I have add client certificate in the settings > Certificates, following this document (Getting started ‒ Qlik Sense for developers) and this post (https://community.qlik.com/t5/Knowledge/How-to-configure-Postman-desktop-app-to-connect-to-Qlik-Sens...). I used a computer to visit the endpoint in an intranet. My computer is also in the same intranet.

I put the client certificate under Windows certificate store, Certificates - Current User>Personal>Certificates and root certificate under Certificates - Current User>Trusted Root Certification Authorities>Certificates. All these certificates are installed on both my client computer and the server I am going to access via API. 

All these attempts cannot solve the problem. Can anyone help?

Qlik Sense Enterprise on Windows 

[Jack_Guo]

Hi @liub5 ,

Please try this post if this can solve the issue or not.

https://community.qlik.com/t5/Integration-Extension-APIs/Integrating-QRS-API-with-signed-certificate...