Hi @MD Mansur ,

Yeah, it is possible to make calls.

Build a wrapper that covers both APIs. As soon as you have fetched the 1st API response, pass it to the 2nd API Wrapper as an input parameter, and send the value to the header during onBeforeRequest.

Hi,

two options. One Option is to wrap both calls into one server action and use that server action in a Data Action on the screen. This is the answer of @Gee Kay .

The second option is to use two Data Actions on the screen. The first one retrieves the access token. This action is set to "At Start". Add an OnAfterFetch to this data action and assign the outcome (the token) to a local screen variable. Then do a refresh of the second Data Action.

The second data action is set to "On Demand". Inside the data action you use the local screen variable holding your token as input.

Best

Stefan

Hello 

You can pass the response from one api to another, as @Stefan says, you can wrap them into a server action and use it either you can call them separately  in data action you need to, you can retrieve the token and send to another (make sure another one is set to only on demand otherwise it will show error message) 
I have created a Oml to explain this to you,

I have set my both the Api data actions fetch property to  on only on demand, then, I have saved my Api configuration data to Site Properties,

Now I have called my Token Data action( this will return Bearer token) on a button click so it will return a token,

then I show a message that token is generated, So now I got a token In my Output variable of data action,

Now passing that output parameter to my another data action  input parameter which is a "Auth header"

Check sample

Hope this helps

Thanks