transit-js cannot encode doubles which happen to be integers

[samdesota]

I'm sending data from a node js client encoded with transit and persisting in Datomic, however since transit-js appears to not have support for a explicit transit.double type, Datomic will error any time I try persist data with a float that happens to be an integer, because it is decoded in transit-clj as an integer.

I've worked around this by creating a new class, and creating a custom handler that returns the encoded double via the rep method on the handler interface:

class Decimal {
  constructor(value: number) {
    this.value = value
  }
}

const handlers = t.map();

  handlers.set(Decimal, {
    tag: () => "d",
    rep: (dec: any) => `~d${dec.value}`,
  });

  return t.writer("json", { handlers });

This seems to be the only way I can get transit-js to correctly encode float types. It seems like there should be a transit.double method that will force the long-form encoding of doubles so the type information isn't lost in transit.