Splunk Search

Extracting field from JSON and XML response

dbautist
Explorer

Depending on the content-type, the response that is logged is either in JSON or XML. I want to create a single query that would extract the REQUEST and DETAIL regardless of what the content-type is. I'm thinking I'd have to use spath, but I'm having a hard time grabbing the response between the "------------" and "<<<<<<<<<<<". I tried escaping it but no luck. Any help would be appreciated.

Note that these are 2 different log events.

2013-02-23 22:36:11,900 ID=[12345] >>>>>>>>>> > HTTP STATUS (400) POST https://myapi/test > content-type: application/xml > accept: application/xml > host: test.com > content-length: 249 > connection: Keep-Alive > <?xml version="1.0" encoding="utf-8"?>johndoe12345 ++++++++++ > Content-Type: application/xml > Cache-Control: no-cache, no-transform > = <?xml version="1.0" encoding="UTF-8"?> 400 myapi INVALID_LASTNAME TEST EXPECTED: LENGTH TOO SHORT ------------ <?xml version="1.0" encoding="UTF-8"?> 400 myapi INVALID_LASTNAME TEST EXPECTED: LENGTH TOO SHORT <<<<<<<<<<<

2013-02-23 22:36:11,900 ID=[12345] >>>>>>>>>> > HTTP STATUS (400) POST https://myapi/test > content-type: application/json; charset=utf-8 > accept: application/json > host: test.com > content-length: 74 > Expect: 100-continue > connection: Keep-Alive > {"firstname":"john","lastname":"doe","id":"12345"} ++++++++++ > Content-Type: application/json > Cache-Control: no-cache, no-transform > = { "status" : 400, "source" : "myapi", "code" : "INVALID_LASTNAME", "detail" : [ { "type" : "TEST", "annotation" : "EXPECTED: LENGTH TOO SHORT" } ] } ------------ { "status" : 400, "source" : "myapi", "code" : "INVALID_LASTNAME", "detail" : [ { "type" : "TEST", "annotation" : "EXPECTED: LENGTH TOO SHORT" } ] } <<<<<<<<<<<

Tags (3)
0 Karma

martin_mueller
SplunkTrust
SplunkTrust

I was bored...

| gentimes start=-1 increment=5m | head 2 | eval tmp = if(starttime%600==0,"2013-02-23 22:36:11,900 ID=[12345] >>>>>>>>>> > HTTP STATUS (400) POST https://myapi/test > content-type: application/xml > accept: application/xml > host: test.com > content-length: 249 > connection: Keep-Alive > <?xml version=\"1.0\" encoding=\"utf-8\"?><request><firstname>john</firstname><lastname>doe</lastname><id>12345</id></request> ++++++++++ > Content-Type: application/xml > Cache-Control: no-cache, no-transform > = <?xml version=\"1.0\" encoding=\"UTF-8\"?> <error> <status>400</status> <source>myapi</source> <code>INVALID_LASTNAME</code> <detail> <type>TEST</type> <annotation>EXPECTED: LENGTH TOO SHORT</annotation> </detail> </error> ------------ <?xml version=\"1.0\" encoding=\"UTF-8\"?> <error> <status>400</status> <source>myapi</source> <code>INVALID_LASTNAME</code> <detail> <type>TEST</type> <annotation>EXPECTED: LENGTH TOO SHORT</annotation> </detail> </error> <<<<<<<<<<<","2013-02-23 22:36:11,900 ID=[12345] >>>>>>>>>> > HTTP STATUS (400) POST https://myapi/test > content-type: application/json; charset=utf-8 > accept: application/json > host: test.com > content-length: 74 > Expect: 100-continue > connection: Keep-Alive > {\"firstname\":\"john\",\"lastname\":\"doe\",\"id\":\"12345\"} ++++++++++ > Content-Type: application/json > Cache-Control: no-cache, no-transform > = { \"status\" : 400, \"source\" : \"myapi\", \"code\" : \"INVALID_LASTNAME\", \"detail\" : [ { \"type\" : \"TEST\", \"annotation\" : \"EXPECTED: LENGTH TOO SHORT\" } ] } ------------ { \"status\" : 400, \"source\" : \"myapi\", \"code\" : \"INVALID_LASTNAME\", \"detail\" : [ { \"type\" : \"TEST\", \"annotation\" : \"EXPECTED: LENGTH TOO SHORT\" } ] } <<<<<<<<<<<") | rex field=tmp "(?<req_xml>\<\?xml .+?)\s+\+{8}.*?-{8,}\s+(?<resp_xml>\<\?xml .*?)\s+\<{8,}" | rex field=tmp "\>\s+(?<req_json>\{.*?)\s+\+{8,}.*?-{8,}\s+(?<resp_json>\{.*?)\s+\<{8,}" | spath input=req_xml output=firstname path=request.firstname | spath input=req_xml output=lastname path=request.lastname | spath input=req_xml output=id path=request.id | spath input=req_json output=firstname path=firstname | spath input=req_json output=lastname path=lastname | spath input=req_json output=id path=id | spath input=resp_xml output=detail_type path=error.detail.type | spath input=resp_xml output=detail_annotation path=error.detail.annotation | spath input=resp_json output=detail_type path=detail{}.type | spath input=resp_json output=detail_annotation path=detail{}.annotation | fields - *xml *json

The juicy bits are in the bottom nine or so lines.

martin_mueller
SplunkTrust
SplunkTrust

I am aware of that - if you run the above query you'll see two events treated equally.

0 Karma

dbautist
Explorer

Thanks martin. The two logs above are actually 2 different events.

0 Karma
Get Updates on the Splunk Community!

Introducing the 2024 SplunkTrust!

Hello, Splunk Community! We are beyond thrilled to announce our newest group of SplunkTrust members!  The ...

Introducing the 2024 Splunk MVPs!

We are excited to announce the 2024 cohort of the Splunk MVP program. Splunk MVPs are passionate members of ...

Splunk Custom Visualizations App End of Life

The Splunk Custom Visualizations apps End of Life for SimpleXML will reach end of support on Dec 21, 2024, ...