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Theo's preferred way of handling try/catch in TypeScript
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// Types for the result object with discriminated union | |
type Success<T> = { | |
data: T; | |
error: null; | |
}; | |
type Failure<E> = { | |
data: null; | |
error: E; | |
}; | |
type Result<T, E = Error> = Success<T> | Failure<E>; | |
// Main wrapper function | |
export async function tryCatch<T, E = Error>( | |
promise: Promise<T>, | |
): Promise<Result<T, E>> { | |
try { | |
const data = await promise; | |
return { data, error: null }; | |
} catch (error) { | |
return { data: null, error: error as E }; | |
} | |
} |
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