Re: IBM i as a webserver with low cost tools

"I suspect that IWS might be able to do almost the same thing, so it might
not even be necessary, but I haven't had time to look."

The marriage between RPG and IWS works very well. And IBM's support is (as
always) great.

HTH
--
Marco Facchinetti

Mr S.r.l.

Tel. 035 962885
Cel. 393 9620498

Skype: facchinettimarco


Il giorno gio 3 giu 2021 alle ore 13:33 Tim Fathers <[email protected]> ha
scritto:

>
> The short(ish) answer is that it's built on Express, it basically just
> extracts the HTTP headers, along with host name, method, cookies and a
> bunch of other things and then passes them as a JSON object, together with
> the request body, to a despatcher stored procedure. The despatcher
> determines which application SP should process the request based on the
> route and method (although any other criteria available could be used, such
> as the "content-type" or "accepts" headers) and calls that.
>
> The despatcher and the processing SPs have four parameters:
>   in REQUEST - a JSON object with the header data mentioned above
>   in REQUEST_BODY - a JSON object with the request body (mine are always
> JSON)
>   inout RESPONSE_DATA - a JSON object with the response data, similar to
> the header data mentioned above
>   out RESPONSE - a CLOB/BLOB/JSON/XML etc. with the response body
>
> The SPs are able to inspect the REQUEST_DATA JSON parameter to find out
> the path or query parameters or any of the other information relevant to
> the call, populate the response body and fill in any relevant parts of the
> response header information, such as status code, or content-type.
>
> Actually, while it's only about 80 lines of Typescript, there are another
> couple of hundred lines of SQL in the dispatching and route resolution SQL
> SPs, so a bit more than the few dozen lines I claimed! Also, the version I
> currently use against a MariaDB database (hence the slightly different SQL
> syntax above), I haven't ported it yet to the IBM i yet - but I don't see
> any issue doing that, there's nothing database specific in the code.  In
> any case, I suspect that IWS might be able to do almost the same thing, so
> it might not even be necessary, but I haven't had time to look.
>
> I'll stick the source on GitHub at some point, in case it's useful to
> someone.
>
> Tim.
>
>
>
> ________________________________
> From: WEB400 <[email protected]> on behalf of Steve
> Richter <[email protected]>
> Sent: 02 June 2021 17:12
> To: Web Enabling the IBM i (AS/400 and iSeries) <[email protected]
> >
> Subject: Re: [WEB400] IBM i as a webserver with low cost tools
>
> >  if you're on 7.2 or later, you can even build the JSON responses right
> in the SQL and then you only need a
> >  very thin middleware layer (the one I currently use is just a few dozen
> lines of Typescript).
>
> how does this work?
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