[Haskell-cafe] Converting EpochTime to Integer

[David Kraeutmann]

I was looking at the wrong EpochTime, whoops.

On 9/15/2015 6:48 PM, David Kraeutmann wrote:
> EpochTime is an instance of Integral. You can just use toInteger ::
> Integral a => a -> Integer.
> On 9/15/2015 6:42 PM, Bram Neijt wrote:
>> Dear Haskell cafe,
>>
>> I want to convert form
>>
>> mtime :: System.Posix.Types.EpochTime
>>
>> to something aeson can eat without having to define an instance. I
>> choose Integer.
>>
>> My current solution[1] is just using (read . show). I know, ugly, but
>> the only thing I could get going.
>>
>> What is the proper way to convert System.Posix.Types.EpochTime to
>> Integer or something else aeson will automatically convert without
>> making a ToJSON instance?
>>
>> As a beginner I wonder: is there a general way to go about finding
>> conversion paths between types?
>>
>>
>> Greetings,
>>
>> Bram Neijt
>>
>> [1] https://github.com/bneijt/httpmtimeline/blob/master/src/Main.hs#L21
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> 
> 
> 
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