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Anyone know how to create an asynchronous type predicate in TS?

Just curious, would the async type predicate await the value?

There's been a feature request for that that's been open for a few years. https://github.com/microsoft/typescript/issues/37681

Staff Eng at Iron Fish 🐟 • Building BlockSocks 🧦 • Denver, CO 📍

Not sure if this helps, but you could use discriminated unions to do some narrowing on async values. E.g. something like

Not sure if this helps, but you could use discriminated unions to do some narrowing on async values. E.g. something like https://tinyurl.com/tr2srwd6

Yeah this is exactly what I need. From my (very intermediate) understanding of TS though it's not possible to do safely. TS can't infer an async result without some sort of manual type assertion