Type Alias AsyncResult<T, E>

AsyncResult: Promise<Result<T, E>>

Represents an asynchronous operation that yields a Result<T, E>. This is a promise that resolves to Ok(T) if the operation was successful, or Err(E) if there was an error.

Type Parameters

T
The type of the value that is produced by a successful operation.
E
The type of the error that may be produced by a failed operation.

Since

1.5.0

Example

async function fetchUser(id: number): AsyncResult<User, Error> {
    try {
        const response = await fetch(`/users/${id}`);
        if (response.ok) {
            return Ok(await response.json());
        }
        return Err(new Error('User not found'));
    } catch (e) {
        return Err(e as Error);
    }
}

Type Alias AsyncResult<T, E>

Type Parameters

Since

Example

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