I have a following input in Nifi Jolt Specification processor :
{
"transaction_id": 53279810162,
"bets": [
{
"event_name": "Mawkhar Sc - Rangdajied United FC (live)",
"match_start": "1660905000000",
"game_name": "Handicap ? £",
"outcome_name": "2 (3:0)"
},
{
"event_name": "University Azzurri Fc - Hellenic Athletic Club (live)",
"match_start": "1660905000000",
"game_name": "Handicap ? £",
"outcome_name": "2 (3:0)"
}
],
"user_id": 1009425,
"bet_type": "Multi"
}
and from this input I want to get such output :
{
"transaction_id": 53279810162,
"bets": [
{
"event_name": "Mawkhar Sc - Rangdajied United FC (live)",
"match_start": "1660905000000",
"outcomes": [
{
"outcome_name": "2 (3:0)",
"game_name": "Handicap ? £"
}
]
},
{
"event_name": "University Azzurri Fc - Hellenic Athletic Club (live)",
"match_start": "1660905000000",
"outcomes": [
{
"outcome_name": "2 (3:0)",
"game_name": "Handicap ? £"
}
]
}
],
"user_id": 1009425,
"bet_type": "Multi"
}
I need for each "bets" create new array with the name "outcomes", where placed game_name and outcome_name.
Can you explain me how I can produce such output ?
You can use such a single shift transformation
[
{
"operation": "shift",
"spec": {
"*": "&", // the "else" case(the attributes other than "bets")
"bets": {
"*": {
"*": "&2[&1].&", // &2 represents "bets", and [&1] indexes of it
"ou*|ga*": "&2[&1].outcomes[#].&" // # replicates the indexes of the newly created array "outcomes", and & substitues the values of the current attributes starting with "ou" OR "ga"
}
}
}
}
]
the demo on the site http://jolt-demo.appspot.com/ is
Related
I'm looking for breaking following nested JSON file and transform it into a SQL prepared format.
Input JSON file:
{
"Product1": {
"Purchase": 31
},
"Product2": {
"Purchase": 6213,
"Cancel": 1988,
"Change": 3702,
"Renewal": 5934
}
}
Desired output:
[
{
"product": "Product1",
"Purchase": 31
},
{
"product": "Product2",
"Purchase": 6213,
"Cancel": 1988,
"Change": 3702,
"Renewal": 5934
}
]
What you need is using a $ wildcard within a shift transformation spec in order to replicate the current attributes's key such as
[
{
"operation": "shift",
"spec": {
"*": {
"$": "[#2].product",// $ grabs the value after going tree one level up from the current level
"*": "[#2].&"// keeps the current attributes conforming to the objects nested within a common array
}
}
}
]
I'm trying to understand the working of '#' wild card.
I have used the '#' in the spec while preparing the productList and it works and I got the output as per my expectation. But I'm not sure about the working of it.
Can anyone please help me to understand the working of it?
Here is the input JSON
{
"orders": [
{
"order_parts": [
{
"id": "0001",
"items": [
{
"id": "00101",
"goodIdentificationList": [
{
"goodIdentificationTypeId": "UPCA",
"idValue": "42684666380437"
},
{
"idValue": "V-ASHBY",
"goodIdentificationTypeId": "SHOPIFY_PROD_SKU"
}
],
"productName": "BLACK / 6 / 809"
},
{
"id": "00102",
"goodIdentificationList": [
{
"goodIdentificationTypeId": "SHOPIFY_PROD_ID",
"idValue": "42684666380437"
},
{
"idValue": "V-ASHBY",
"goodIdentificationTypeId": "UPCA"
}
],
"productName": "BLACK / 6 / 809"
}
]
},
{
"id": "0002",
"items": [
{
"id": "00103",
"goodIdentificationList": [
{
"goodIdentificationTypeId": "SHOPIFY_PROD_ID",
"idValue": "42684666380437"
},
{
"idValue": "V-ASHBY",
"goodIdentificationTypeId": "UPCA"
}
],
"productName": "BLACK / 6 / 809"
}
]
}
]
}
]
}
Expected by the below spec:-
Check every map of goodIdentificationList, get the idValue where goodIdentificationTypeId - UPCA, and put in the productList as gtin.
Get the id from the items list and put it in the productList as an itemId.
Get the productName from the items list and put it in the productList as a name.
Jolt Spec is like below
[
{
"operation": "shift",
"spec": {
"orders": {
"*": {
"order_parts": {
"*": {
"items": {
"*": {
"goodIdentificationList": {
"*": {
"goodIdentificationTypeId": {
"UPCA": {
"#(2,idValue)": "[&5].productList.[#8].gtin"
}
}
}
},
"id": "[&1].productList.[#4].itemId",
"productName": "[&1].productList.[#4].name"
}
}
}
}
}
}
}
},
{
"operation": "shift",
"spec": {
"*": {
"productList": {
"*": "productList.[]"
}
}
}
}
]
By the above spec, I'm able to prepare the productList as I was expecting.
But want to understand the working of '#' here.
Output JSON
{
"productList" : [ {
"itemId" : "00101",
"name" : "BLACK / 6 / 809"
}, {
"itemId" : "00103",
"name" : "BLACK / 6 / 809"
}, {
"itemId" : "00102",
"name" : "BLACK / 6 / 809"
} ]
}
Any help will be appreciated.
Thanks!
You principally need this spec
[
{
"operation": "shift",
"spec": {
"order*": {
"*": {
"order*": {
"*": {
"items": {
"*": {
"id": "&3.&1.&",
"prod*": "&3.&1.&"
}
}
}
}
}
}
}
},
{
"operation": "shift",
"spec": {
"*": {
"*": "productList[]"
}
}
}
]
in which, the combination of the indexes of "items" array(&1) vs. the indexes of "order_parts" array(&3) handles separation of three individual objects, and then then tiding up innermost part while tagging the desired value(productList), and combining those newly generated objects will spontaneously form an array.
Replacement of
"id": "&3.&1.&",
"prod*": "&3.&1.&"
with
"id": "&3[&1].&",
"prod*": "&3[&1].&"
or
"id": "&3[#2].&",
"prod*": "&3[#2].&"
would handle exactly the same for this current case. But if there was no array the identifiers [&1] or [#2] would produce square brackets. The difference for right-hand-size usage of them is [&1] will traverse {, while [#2] will traverse both { and the current : characters in order to reach the target within the current tree, and [&1] will use indexes 0,1,2, which starts from zero, everytime and this will generate some null components for generated arrays for some cases, while [#2] won't. Eg. On the RHS of the spec, # is only valid in the the context of an array, like "[#2]".What "[#2]" means is, go up the three levels(including the colon at the current level) and ask that node how many matches it has had, and then use that as an index in the arrays.
I have JSON from REST API:
{
"fields": [
"advertiser_id",
"campaign_id",
"day"
],
"data": [
[
"8905",
"234870",
"2021-09-28"
],
[
"5634",
"88467870",
"2021-09-28"
]
]
}
I want to match values inside fields array with values inside data. The have same order. So I expect to get:
[
{
"advertiser_id": "8905",
"campaign_id": "234870",
"day": "2021-09-28"
},
{
"advertiser_id": "5634",
"campaign_id": "88467870",
"day": "2021-09-28"
}
]
Any ways to do it with JOLT?
You can use a shift transformation spec in which
go 4 levels up (traverse once:, and { triple) in order to reach
fields array as picking sub-arrays of data array by using [&1]
dissipate all returning key-value pairs through use of [&2]. node
such as
[
{
"operation": "shift",
"spec": {
"data": {
"*": {
"*": {
"#": "[&2].#(4,fields[&1])"
}
}
}
}
}
]
the demo on the site http://jolt-demo.appspot.com/ is
I've already created a spec to convert my JSON input
{
"rows": [
{
"row": [
"row1",
"row2",
"row3"
],
"header": [
"header1",
"header2",
"header3"
]
},
{
"row": [
"row4",
"row5",
"row6"
],
"header": [
"header4",
"header5",
"header6"
]
}
]
}
to convert to key-value pairs as following object result :
{
"header1" : "row1",
"header2" : "row2",
"header3" : "row3",
"header4" : "row4",
"header5" : "row5",
"header6" : "row6"
}
Is this possible to do using Jolt?
Is there a copy/paste error in your input? Judging by your desired output, the second object's header array should be ["header4", "header5", "header6"]. If that's the case, this spec should work:
[
{
"operation": "shift",
"spec": {
"rows": {
"*": {
"header": {
"*": {
"*": {
"#(3,row[#2])": "&"
}
}
}
}
}
}
}
]
One option is to use the following shift transformation spec :
[
{
"operation": "shift",
"spec": {
"*s": { // rows array
"*": {
"&(1,1)": { // row array
"*": {
"#": "#(3,header[&1])"
}
}
}
}
}
}
]
where
"*s": { stands for rows
"&(1,1)": { -> not immediate(zeroth) level but one more level up by using &(1, and grab the value there the first asterisk exists by &(..,1)
"#": "#(3,header[&1])" -> 3 levels needed as stated at the right hand side traverse the colon
as well in order to reach the level of &(1,1) which is used to
represent the "row" array along with &1 representation to go one level up the tree to reach the indexes of the array "row" while matching with the values of "row" through use of # on the left hand side
the demo on the site http://jolt-demo.appspot.com/ is :
Hi I am new to JOLT transformation. I need to transform the input json using JOLT to get below seen output. Please help me in below transformation:
input:
{
"image": [
"content1",
"content2",
"content3"
],
"legal": [
"legal1",
"legal2",
"legal3"
],
"hyper": [
"hyper1",
"hyper2",
"hyper3"
]
}
output:
[
{
"image": "content1",
"legal": "legal1",
"hyper": "hyper1"
},
{
"image": "content1",
"legal": "legal1",
"hyper": "hyper1"
},
{
"image": "content1",
"legal": "legal1",
"hyper": "hyper1"
}
]
Spec
[
{
"operation": "shift",
"spec": {
"*": { // image, legal, etc
"*": { // array
"*": { // content1, legal1, etc
"$": "[&2].&3" // grab "content1" and use it as output
// send it to an output doc that is a top level array
// indexed by looking 3 levels up the tree [&2]
}
}
}
}
}
]