Variable scope in javascript module
Valentin V. Bartenev
vbart at nginx.com
Tue Oct 30 23:56:28 UTC 2018
On Wednesday, 31 October 2018 01:47:49 MSK alweiss wrote:
> My problem is that services can be one, two … ten etc … so not easy to place
> in the callback of the previous subrequest ...
>
Actually it's not a problem. Here's an example:
function authorize(r) {
var n = 0;
var svcs = ['one', 'two', 'three'];
var callNextService = function() {
function done(reply) {
if (reply.status == 200) {
r.return(200);
return;
}
callNextService();
}
if (n == svcs.length) {
r.return(403);
return;
}
r.subrequest("/" + svcs[n++], '', done);
}
callNextService();
}
wbr, Valentin V. Bartenev
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