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| Subject: | XHR Request to the JSON API |
| Author: | [Not Specified] |
| Posted: | 2015-02-20 20:16 |
Hello,
I'm creating a simple Javascript based web app (a map)... I need to get the device list via JSON API which I know how to do from Java or Python... But since Javascript uses a XHR request, browsers won't let me query Zenoss because I'm doing it from a different domain (CORS, love to hate it)...
I've dealt with this problem many times and usually it requires a simple line on the server side, like this on PHP:
header("Access-Control-Allow-Origin: *");
Is there a way to deal with this problem with Zenoss
There was a TV plataform that I had to deal with the same problem but it was a closed source proprietary software... Since I couldn't set the header, I actually made a "proxy" Java app that doesn't care about CORS and would do the requests for me...
Any help would be appreciated... Trying to avoid the whole proxy thing this time...
| Subject: | IMHO proxy app is the best |
| Author: | Jan Garaj |
| Posted: | 2015-02-21 13:12 |
IMHO proxy app is the best solution for you. It's your code, under your control/domain.
OR
1.) Nginx as a HTTP(s) proxy for Zope/Zenoss
and Nginx will "inject" required headers
http://wiki.zenoss.org/Newsletter:5/Encrypt_All_the_Bits
http://enable-cors.org/server_nginx.html
2.) Zope code modification
I don't have idea what and where you need to modify.
But probably output from the command:
grep -rin ".setHeader('" /opt/zenoss/Products/*
will help you with Zenoss hacking :-)
Devops Monitoring Expert advice:
Dockerize/automate/monitor all the things.
DevOps stack:
Docker / Kubernetes / Mesos / Zabbix / Zenoss / Grafana / Puppet / Ansible / Vagrant / Terraform /
Elasticsearch
| Subject: | I went with the proxy app... |
| Author: | [Not Specified] |
| Posted: | 2015-02-24 12:15 |
I went with the proxy app...
It's a Java app using the ZenossAPI.java provided here... But now I have another question... When I get a simple device list, the JSON only sends me 50 devices... It even tells me there is more devices but the array always have 50 at maximum...
Object { hash: "172", totalCount: 172, devices: Array[50], success: true }
Is there a hidden restriction somewhere
| Subject: | add "limit":2000 or whatever |
| Author: | [Not Specified] |
| Posted: | 2015-02-24 12:34 |
add "limit":2000 or whatever to your API call
| Subject: | Thanks, that did work... |
| Author: | [Not Specified] |
| Posted: | 2015-02-25 07:59 |
Thanks, that did work...
I must be somewhat outdated with the API because I do have an older Zenoss installation on a customer that I do the same thing and, as far as I know, I never used that parameter.
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