dhis2-devs team mailing list archive

[Timothy Harding <hardingt@xxxxxxxxx>]

Thanks Pierre,

Not sure how I would set up the recursive loop in javascript, I had heard
about async from stack overflow as well, I was thinking of trying that, but
I kind of like how quickly this works, not needing to wait for the response
from one request before sending the next. The DHIS2 hardware I am working
with just doesn't seem to keep up after a certain number of requests
however, hence my attempt to slow them down.

Timothy Harding
RPCV Vanuatu
Skype: hardingt@xxxxxxxxx
+1 (541) 632-6623

On Mon, Aug 24, 2015 at 9:39 AM, Pierre Dane <pierre@xxxxxxxxx> wrote:

> might be best to try a recursive loop using setInterval or setTimeout with
> a configurable value (I.e. a method calling itself) .  or you could look at
> the async library to make things synchronous .
>
>
> On Monday, August 24, 2015, Timothy Harding <hardingt@xxxxxxxxx> wrote:
>
>> Hello DHIS2 Devs,
>>
>> I've got a script that works pretty well for updating a bunch of sharing
>> settings for various objects using node.js. The only problem is, I am
>> getting timeouts when the object update counts get too high (500+).
>>
>> I am a bit new to the asynchronous nature of node.js, and I like that I
>> can bundle a lot of updates into one without needing to worry that I need a
>> response for one before sending the request for the next. The downside is,
>> I have no idea where to put the sleep timer to slow down the volume of
>> requests. Everywhere I've put it so far increases the timeouts, rather than
>> decreases them. I know there are some node.js experts out there on the
>> DHIS2 dev list so, perhaps someone has run into something similar:
>>
>> var serverConfigPOST = serverConfig;
>> serverConfigPOST.dhis2server.method = "POST";
>> var i=0;
>> for(i=0; i < dataElementsToUpdate.length; i++){
>>
>>                             Tried here
>> var postData = JSON.stringify(dataElementsToUpdate[i]);
>> serverConfigPOST.dhis2server.path =
>> "/dhis/api/sharing?type=dataElement&id=" + dataElementsToUpdate[i].
>> object.id;
>> serverConfigPOST.dhis2server.headers = {
>> 'Content-Type': 'application/json',
>> 'Content-Length': postData.length
>> };
>> console.log(serverConfigPOST);
>> var req = https.request(serverConfigPOST.dhis2server, function(res) {
>> console.log('STATUS: ' + res.statusCode);
>> console.log('HEADERS: ' + JSON.stringify(res.headers));
>> res.setEncoding('utf8');
>> res.on('data', function (chunk) {
>> console.log('BODY: ' + chunk);
>> });
>> });
>> req.on('error', function(e) {
>> //console.log('problem with request: ' + e.message);
>> });
>> // write data to request body
>> req.write(postData);
>> req.end();
>>
>>                             Tried here
>> // if(i==20){
>> // break;
>> // }
>> }
>>
>> Not quite sure how to slow this one down, I may just have to run/rerun it
>> with different starting and stopping i values in the mean time.
>>
>> Timothy Harding
>> RPCV Vanuatu
>> Skype: hardingt@xxxxxxxxx
>> +1 (541) 632-6623
>>
>
>
> --
> Pierre Dane
>
> Development Manager
> Jembi Health Systems
>
>