[This article is primarily intended for DataWeave developers. It may be considered a Forward to an article for the MuleSoft Developers blog that demonstrates how this problem can solved. Readers are invited to post comments to suggest the approach they believe in.]
Hopefully you don't commonly face this problem on your development team, but I see it often enough in the field that I know some folks could use a handy answer. Something that often hamstrings an API development effort is the absence of useful sample data for the project. If you use specification-driven development the way MuleSoft suggests, then there very well may be a suitable sample to get your project into coding.
Occasionally however, the samples we find in the spec are not enough either, and it falls to a developer who must generate a sample of suitable size, or variation. Using DataWeave, this is something you can do in a few minutes. I'm not going to show how in this article, I'm going to show you a framework and have you show ME how. Then I will publish an article in the MuleSoft Developers blog, showing my solution, and perhaps yours, if you suggest something magical.