samples for core-rest-pipeline

[YoDaMa]

Is your feature request related to a problem? Please describe.

The @azure/core-rest-pipeline folder does not currently have any samples.

Describe the solution you'd like

A sample outlining how to create a simple request object, send the request, and handle the response.

[deyaaeldeen]

@YoDaMa thanks for opening this issue. Using core-rest-pipeline directly is discouraged because its public surface changes a lot. @azure/core-client uses it which itself is used as the basis for clients in our packages.

Could you please tell me more about your needs and what are you trying to do so we can help better?

[jeremymeng]

I did an PR earlier #15187 but it's pity that we don't have a real public Azure service endpoint to use in the sample.

[deyaaeldeen]

I followed up with @YoDaMa offline. He is unblocked and @jeremymeng's #15187 should be good enough to resolve this issue.