Consider adding \dontrun to your examples?

[sckott]

We usually do this because all our packages (including rpubmed) make web calls.

For example:

@examples \dontrun{
some code
}

Then the examples dont run during check or the CRAN tests when submitting to CRAN. But you can still run them by doing e.g. run_examples("pathtopackage", run=F), with run=F causing examples with \dontrun to be run.

[DASpringate]

Done.