Hello,

I am trying to use the API to get the historic data for my sensors. When using the webapp this is the URL

[server]/historicdata_html.htm?id=2244&sdate=2017-07-01-00-00-00&edate=2017-07-31-23-59-00&avg=86400&pctavg=300&pctshow=false&pct=95&pctmode=false

So for my API call I am using: [server]/api/historicdata.json?id=2244&sdate=2017-07-01-00-00-00&edate=2017-07-31-23-59-00&avg=86400

however from the API I am getting this response:

<prtg>
<version>17.2.31.2018</version>
<error>Sorry, the selected object cannot be used here.</error>
</prtg>

whereas the webapp is working perfectly.

Any suggestions would be greatly appreciated!

Article Comments

Hello,

Thank you for the KB-Post. Just to check, does it work when calling the historicdata.xml or historicdata.csv function instead?

best regards


Aug, 2017 - Permalink

Hi,

Yes xml/csv do give me a response. however, both download a file and I need to consume the data in a web app so json is definitely preferable.

Thanks for your assistance


Aug, 2017 - Permalink

Stephen, I just tried the

/api/historicdata.json?id=objectid&avg=0&sdate=2017-01-20-00-00-00&edate=2017-01-21-00-00-00&usecaption=1

call on a .33 stable release and a .34 canary release, and on both it did work and produce a proper JSON file with historic data. Can you please run the update on your PRTG? It should then work just as well.


Aug, 2017 - Permalink

Thanks Torsten, this worked perfectly. I should have tried that first.


Aug, 2017 - Permalink