@raymondfeng could we please reduce the scope of this work to what's needed by our MVP? We have two similar stories in backlog, one is MVP the other is non-MVP:

• MVP: Router: validate input parameters Router: validate input parameters #118
• non-MVP: Router: coercion of complex parameters from string sources Router: coercion of complex parameters from string sources #100

As a team, we really need to focus on what's required by MVP and de-prioritize reviews of pull requests proposing changes out of scope of MVP. I don't mind to keep this pull request open as a long-term work, as long as our mutual expectation is that reviews will happen infrequently.

@bajtos Sorry for the confusion. I intentionally mark the PR as [WIP] to indicate it's not ready for final review. Feedback is welcome but review is optional at this stage.

Maybe we should define a protocol here to make it clear.

There have been no updates in this pull request for many months, I am closing it for now. @raymondfeng feel free to reopen if you get time to continue this work. (Considering how outdated these changes are, it may be better to start from scratch.)