Should generatePath support number in params?

[m2na7]

I’ve been working with the generatePath function, and I noticed that the params type currently only accepts string | null:

params: {
  [key in PathParam<Path>]: string | null;
}

However, in many practical cases, route parameters can also be number values. For example:

generatePath("/users/:userId", { userId: 123 });

While this works at runtime (since the internal stringify() safely handles numbers using String(p)), the current TypeScript definition doesn't allow this and causes a type error.

Would it make sense to update the type to support number as well, like this?

params: {
  [key in PathParam<Path>]: string | number | null;
}

This change would better reflect real-world usage and eliminate the need for unnecessary String() casts at the call site.

Curious to hear your thoughts on this. Thanks!

[dselgo]

Running into the same problem. It is annoying to have to convert all of my numbers into strings to avoid the TypeScript error.