Basically I just need to map a URI to a stored procedure or RPG program and have access to the raw bodies and headers for the request and response? I'm not really interested in having it try to decode data-structures or parameters, I prefer to do that using SQL. Could it do that?

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________________________________
From: WEB400 <web400-bounces@xxxxxxxxxxxxxxxxxx> on behalf of Marco Facchinetti <marco.facchinetti@xxxxxxxxx>
Sent: Thursday, June 3, 2021 4:44:25 PM
To: Web Enabling the IBM i (AS/400 and iSeries) <web400@xxxxxxxxxxxxxxxxxx>
Subject: Re: [WEB400] 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 <tim@xxxxxxxxxxxxx> 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 <web400-bounces@xxxxxxxxxxxxxxxxxx> on behalf of Steve
Richter <stephenrichter@xxxxxxxxx>
Sent: 02 June 2021 17:12
To: Web Enabling the IBM i (AS/400 and iSeries) <web400@xxxxxxxxxxxxxxxxxx

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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