On 03/08/2017 01:51 PM, Isaac Torbett wrote:
I'm trying to get the urweb server to return json, but what is the
type/kind I should put in the transaction monad?
val main : <here> -> transaction page
What would I put in <here>?
Furthermore- I don't even know if my json-like structure is allowed,
the compiler isn't complaining about it, so maybe it's fine.
I think Section 10 of the manual explains everything about how to write
handlers that provide non-HTML-based APIs. In short, you probably want
to use argument type [postBody] or [queryString], depending on how the
JSON comes in. You can also use [returnBlob] to return JSON instead of
HTML.
fun main () = return queryX1 (SELECT topic.Title, topic.Body FROM topic)
It looks like you're hung up on the basics of programming with monads,
for which I'd recommend a Haskell monad tutorial. But the case-specific
fix is to remove the [return].
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