get data from API OAuth 2.0

[shareef2]

Hi Team,

I would like pass ID to API an get data. below are the details i received from API team.

Grant Type: Client Credentials
Access Token URL: https://123.com/apex/epex/oauth/token
Client ID: ..xxx..
Client Secret: ..yyy..
Client Authentication: Send as Basic Auth header

==ENDPOINT==

https://123.com/apex/epex/?parameter

where "parameter" is the ID to get data.

i have tried multiple option in download tool . but can not connect to API. can you please help

Thanks 

Sha

to supplement further, here is how we are connecting from POSTMAN

Tried this option --> error : 401 - Unauthorized: Access is denied due to invalid credentials

[shareef2]

@patrick_digan  while getting the token it self i get error. https://123.com/apex/epex/oauth/token