Getting Data In

How do I write a search query for a hierachial JSON?

kjubie
New Member

(I have no experience in Splunk searches)
The question is simple:

I have a JSON like this:

{
    "name": "Testdata",
    "children": [
        {
            "name": "A",
            "children": [
            {
                "name": "A1",   
                "value": 436
            },
            {
                "name": "A2",
                "value": 546
            },
            {
                "name": "A3",
                "value": 223
            },
            {
                "name": "A4",
                "value": 132
            },
            {
                "name": "A5",
                "value": 115
            },
            {
                "name": "A6",
                "value": 96
            }]
        },
        {
            "name": "B",
            "children": [
            {
                "name": "B1",
                "value": 453
            },
            {
                "name": "B2",
                "value": 344
            },
            {
                "name": "B3",
                "value": 35
            },
            {
                "name": "B4",
                "value": 65
            },
            {
                "name": "B5",
                "value": 789
            },
            {
                "name": "B6",
                "value": 648
            },
            {
                "name": "B7",
                "value": 147
            }]
        }
      ]
}

and I want a table like this:

parent    |name   |value
A         |A1     | 436
A         |A2     | 546
...       |..     |..
B         |B1     |443

(Sorry for the bad drawn table)

Thanks for the answers!

Tags (2)
0 Karma
1 Solution

renjith_nair
Legend

Use spath to parse the json. Here is an example

| makeresults |eval json="{
     \"name\": \"Testdata\",
     \"children\": [
         {
             \"name\": \"A\",
             \"children\": [
             {
                 \"name\": \"A1\",    
                 \"value\": 436
             },
             {
                 \"name\": \"A2\",
                 \"value\": 546
             },
             {
                 \"name\": \"A3\",
                 \"value\": 223
             },
             {
                 \"name\": \"A4\",
                 \"value\": 132
             },
             {
                 \"name\": \"A5\",
                 \"value\": 115
             },
             {
                 \"name\": \"A6\",
                 \"value\": 96
             }]
         },
         {
             \"name\": \"B\",
             \"children\": [
             {
                 \"name\": \"B1\",
                 \"value\": 453
             },
             {
                 \"name\": \"B2\",
                 \"value\": 344
             },
             {
                 \"name\": \"B3\",
                 \"value\": 35
             },
             {
                 \"name\": \"B4\",
                 \"value\": 65
             },
             {
                 \"name\": \"B5\",
                 \"value\": 789
             },
             {
                 \"name\": \"B6\",
                 \"value\": 648
             },
             {
                 \"name\": \"B7\",
                 \"value\": 147
             }]
         }
       ]
 }"
 |spath input=json|table children{}.name,children{}.children{}.name,children{}.children{}.value
 |rename children{}.children{}.name as grand_child_name,children{}.name as child_name,children{}.children{}.value as grand_child_value
 |eval zipped=mvzip(grand_child_name,grand_child_value)|table child_name,zipped|mvexpand zipped
 |mvexpand child_name|eval x=split(zipped,",")|eval grand_child_name=mvindex(x,0),grand_child_value=mvindex(x,1)
 |table child_name,grand_child_name,grand_child_value|eval match=substr(grand_child_name,0,1)|where child_name==match|fields - match
---
What goes around comes around. If it helps, hit it with Karma 🙂

View solution in original post

renjith_nair
Legend

Use spath to parse the json. Here is an example

| makeresults |eval json="{
     \"name\": \"Testdata\",
     \"children\": [
         {
             \"name\": \"A\",
             \"children\": [
             {
                 \"name\": \"A1\",    
                 \"value\": 436
             },
             {
                 \"name\": \"A2\",
                 \"value\": 546
             },
             {
                 \"name\": \"A3\",
                 \"value\": 223
             },
             {
                 \"name\": \"A4\",
                 \"value\": 132
             },
             {
                 \"name\": \"A5\",
                 \"value\": 115
             },
             {
                 \"name\": \"A6\",
                 \"value\": 96
             }]
         },
         {
             \"name\": \"B\",
             \"children\": [
             {
                 \"name\": \"B1\",
                 \"value\": 453
             },
             {
                 \"name\": \"B2\",
                 \"value\": 344
             },
             {
                 \"name\": \"B3\",
                 \"value\": 35
             },
             {
                 \"name\": \"B4\",
                 \"value\": 65
             },
             {
                 \"name\": \"B5\",
                 \"value\": 789
             },
             {
                 \"name\": \"B6\",
                 \"value\": 648
             },
             {
                 \"name\": \"B7\",
                 \"value\": 147
             }]
         }
       ]
 }"
 |spath input=json|table children{}.name,children{}.children{}.name,children{}.children{}.value
 |rename children{}.children{}.name as grand_child_name,children{}.name as child_name,children{}.children{}.value as grand_child_value
 |eval zipped=mvzip(grand_child_name,grand_child_value)|table child_name,zipped|mvexpand zipped
 |mvexpand child_name|eval x=split(zipped,",")|eval grand_child_name=mvindex(x,0),grand_child_value=mvindex(x,1)
 |table child_name,grand_child_name,grand_child_value|eval match=substr(grand_child_name,0,1)|where child_name==match|fields - match
---
What goes around comes around. If it helps, hit it with Karma 🙂

DalJeanis
Legend

Converted this to an answer because it answers the question with an excellent run-anywhere example.

kjubie
New Member

Thanks for your help! Works perfectly!

0 Karma

renjith_nair
Legend

Thanks @DalJeanis !

---
What goes around comes around. If it helps, hit it with Karma 🙂
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Announcing Modern Navigation: A New Era of Splunk User Experience

We are excited to introduce the Modern Navigation feature in the Splunk Platform, available to both cloud and ...

Observability Simplified: Combining User Experience, Application Performance & ...

Tech Talk Observability Simplified: Combining User Experience, Application Performance & Network ...

Event Series May & June: From Network Visibility to Service Intelligence

Unifying the Network: Moving from Alert Noise to Service Intelligence with Splunk ITSI In today’s hybrid ...