VISA Travel Predict API Inaccessible from Postman and Python

[animeshpaul91]

Hello,

I am trying to access the VISA Travel Predict API – (https://developer.visa.com/capabilities/visa-travel-predict) for one of our Projects. I have already set up the Two-Way SSL for accessing the API by following the instructions on - https://developer.visa.com/pages/working-with-visa-apis/two-way-ssl.

I created a helloWorld endpoint as explained in the tutorial and I am getting the expected output.

However, I am not able to access the scorerange endpoint of the API through Postman and neither from a script that I have written. I have added the private key and certificate in postman and I am using the basic authentication with the username and password that are available in the app.

I have also written a similar Python code as was mentioned in the tutorial. But even that does not work. Below is the error.

requests.exceptions.ConnectionError: ('Connection aborted.', PermissionError(13, 'Permission denied'))

Could you please let me know where I am making a mistake?

[SLi · Accepted solution]

Hi @animeshpaul91,

The error 400 - 9124 usually means that the client certificates are not sent. Please check the following in Postman:

Settings => Certificates: add your client certificates

Settings => General Tab: SSL Certificate Verification is ON

Please refer to the below thread for details on Postman setup. All details including screenshot is posted here.

https://community.developer.visa.com/t5/Use-Cases/APIs-for-payment-gateway-9124-error/m-p/10448#M113

Hope this helps, please reach out if you need further assistance.