How does router set paging?

  node.js, question

I want to design a route that queries one when there are id parameters and all when there are no id parameters.

router.get('/role/:id?'  , role.find);

When there is no id parameter, I want to do paging for all queries, so I do this

router.get('/role/:id?  /:page?  /:count?'  , role.find);

Then that unit test requests like this

get('/role//2/2')

Okay, it’s wrong

I don’t know how to change it. . .

router.get('/role/:page?  /:count?'  , role.find);

I didn’t watch the question just now. . .

Directly use two optional parameters, and then determine the number of parameters to determine whether the query is all or pagination.