Forum Discussion
playfair039_320
Nimbostratus
NimbostratusHTTP monitor method POST
Hi I've worked with a bunch of http health monitors that use the GET method with no issues filtering for content within the return string, mostly json. I now have a monitor which posts a json blob to an api and gets some json back. I know this works well because I test with cURL. The issue however is that I can't filter the content which should be in the receive string. The pool only goes green when I have nothing in the receive string and the call returns a 200 http status code. But there's vital information in the json i need to filter for within the returned json. Does anyone have some experience working with a similar problem? I'm running version 12.1.2. Thanks in advance.
Daniel_VarelaEmployee
You may need to escape special characters like { } : “ [ ] Sometime ago I did something similar for a soap monitor and all my problems were special characters
AneshCirrostratus
- Can you Provide the Request and response from the Curl test?
- Also could you mention what is the string that you are trying to filter from the response?
- Also could you provide the cli output of your monitor setting
amintejCirrus
Hello,
Did you enable monitor logging in the member configuration ? If the setting is enabled, you can check HTTP Request and Response (Headers and Body) and compare to curl output. The log created is in in /var/log/monitors. Please note it is not advisable enable logging for a long period of time only for troubleshooting
Some rules for configuring HTTTP health monitors:
- You need to separate headers from body using: \r\n\r\n
-
You have to scape " symbol, replace " for \" . Send string example for XML:
Original XML:
playfair039_320I figured this out yesterday, apologies. I found that the request from the bigip unit was slightly malformed - difficult to see this without a pcap on the downstream server. Thanks all