trouble on API usage (user.login on Zabbix 2.2)

[shaopeng]

This is my first time to try the API, and here is the command I tried:
curl -i -X POST -H 'Content-Type:application/json' -d '{"jsonrpc":"2.0","method":"user.login","params":{ "user":"Admin","password":"zabbix"},"auth":null,"i d":0}' http://1.1.1.1/zabbix/api_jsonrpc.php

but this is what got：
HTTP/1.0 412 Precondition Failed
Date: Fri, 08 May 2015 08:36:08 GMT
Server: Apache/2.2.22 (Linux/SUSE)
X-Powered-By: PHP/5.3.17
Content-Length: 0
Connection: close
Content-Type: text/html

As I googled, everyone is saying the key is 'Content-Type:application/json', which I already paid enough attention to.

I am stuck here, and am really puzzled on how to get more information for troubleshooting.


My testing environment: Virutal Appliance v2.2

[billjam]

your command worked for me (after cahnging IP, username and password of course).
You could try checking http error_log if it logs anything.

[brico]

Working OK

Which version of CURL are you using? I was able to get the command to succeed with Ubuntu 12.04:

curl 7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3

curl -i -X POST -H 'Content-type:application/json' -d '{"jsonrpc":"2.0","method":"user.login","params":{ "user":"myUserName","password":"myPassword"},"auth":null,"id":0}' [URL]http://internal-zabbix.lan/api_jsonrpc.php[/URL]

Returns:

 
 {"jsonrpc":"2.0","result":"276a1fe0e6594edd2d345a487683bce8","id":0}

Based on the response information you provided, it seems the header is not being passed correctly which could be an issue with the version of curl (guessing).

Did you try putting the command in a file and executing it like a script? I noticed my Putty session was executing 'Content-tType' even though it was displaying 'Content-Type', resulting in "412 Precondition Failed". Having the command in a file will confirm the header is passed correctly.

[shaopeng]

your command worked for me (after cahnging IP, username and password of course).
You could try checking http error_log if it logs anything.

Thanks for your reply. I'd like to check the logs, but I am not familiar with Apache.
Would you please which file should I go to for checking the http error_log?

[shaopeng]

Which version of CURL are you using? I was able to get the command to succeed with Ubuntu 12.04:

curl 7.22.0 (x86_64-pc-linux-gnu) libcurl/7.22.0 OpenSSL/1.0.1 zlib/1.2.3.4 libidn/1.23 librtmp/2.3

curl -i -X POST -H 'Content-type:application/json' -d '{"jsonrpc":"2.0","method":"user.login","params":{ "user":"myUserName","password":"myPassword"},"auth":null,"id":0}' [URL]http://internal-zabbix.lan/api_jsonrpc.php[/URL]

Returns:

 
 {"jsonrpc":"2.0","result":"276a1fe0e6594edd2d345a487683bce8","id":0}

Based on the response information you provided, it seems the header is not being passed correctly which could be an issue with the version of curl (guessing).

Did you try putting the command in a file and executing it like a script? I noticed my Putty session was executing 'Content-tType' even though it was displaying 'Content-Type', resulting in "412 Precondition Failed". Having the command in a file will confirm the header is passed correctly.

Thanks! I was using a curl on my Windows machines. I did a try on one of my CentOS servers. But this time I have a new problem. This is the response from the server:

HTTP/1.1 200 OK
Date: Wed, 03 Jun 2015 06:43:25 GMT
Server: Apache/2.2.22 (Linux/SUSE)
X-Powered-By: PHP/5.3.17
Content-Length: 2
Content-Type: application/json

I keep getting the same response even if I put a wrong password in the request.

And here is my version info:

curl 7.19.7 (x86_64-redhat-linux-gnu) libcurl/7.19.7 NSS/3.16.2.3 Basic ECC zlib/1.2.3 libidn/1.18 libssh2/1.4.2
Protocols: tftp ftp telnet dict ldap ldaps http file https ftps scp sftp 
Features: GSS-Negotiate IDN IPv6 Largefile NTLM SSL libz

I think this version should be ok, as it's the newest on CentOS, which is a little bit behind Ubuntu.

[billjam]

I'm not sure if its just the line wrap in this forum or not , but make sure "id" doesn't have a space in it.

"i d" gives me no response, but "id" with wrong password says:
"data":"Login name or password is incorrect."

The httpd log on centos is /var/log/httpd/ and either error_log or ssl_error_log or access...

[shaopeng]

I'm not sure if its just the line wrap in this forum or not , but make sure "id" doesn't have a space in it.

"i d" gives me no response, but "id" with wrong password says:
"data":"Login name or password is incorrect."

The httpd log on centos is /var/log/httpd/ and either error_log or ssl_error_log or access...

Thanks for your help. It works!
I copy and paste from the forum, and that space between i and d caused the problem for my last try.
Thanks again!