IBM App Connect Enterprise - Aggregate Group Node Results - ibm-integration-bus

Question

I'm using the Group Nodes in App Connect ACE 11 to call a service multiple times and trying to aggregate the the responses. Everything works fine and the below is the result of InputRoot.ComIbmGroupCompleteNode.Group.
{
"msg": {
"GroupProperties": {
"GroupId": "010000000000000000000000000000001000000000000000",
"GroupName": "TSTGRP",
"GroupCreationTime": 1593669682652,
"GroupCommitTime": 1593669682707,
"GroupCompleteTime": 1593669682806,
"GroupOutputTime": 1593669682806,
"GroupStatus": "Completed"
},
"Context": {
"HTTP": {
"RequestIdentifier": "45564854000000000e000000db851d0ecc11000000000000"
},
"RouterList": {}
},
"Replies": {
"FLDR": {
"ReplyId": "534f41503000000067e55223146300000400000000000000",
"RequestSendTime": 1593669682674,
"ReplyReceiptTime": 1593669682706,
"Reply": {
"Root": {
"HTTPResponseHeader": {
"X-Original-HTTP-Status-Line": "HTTP/1.1 200 OK",
"X-Original-HTTP-Status-Code": 200,
"Date": "Thu, 02 Jul 2020 06:01:17 GMT",
"Content-Type": "application/json; charset=utf-8",
"Content-Length": "83",
"Connection": "keep-alive",
"Set-Cookie": "__cfduid=dfbd2cc294d944ed4cfdf6b72a343f8dc1593669677; expires=Sat, 01-Aug-20 06:01:17 GMT; path=/; domain=.typicode.com; HttpOnly; SameSite=Lax",
"X-Powered-By": "Express",
"X-Ratelimit-Limit": "10000",
"X-Ratelimit-Remaining": "9999",
"X-Ratelimit-Reset": "1592660247",
"Vary": "Origin, Accept-Encoding",
"Access-Control-Allow-Credentials": "true",
"Cache-Control": "max-age=43200",
"Pragma": "no-cache",
"Expires": "-1",
"X-Content-Type-Options": "nosniff",
"Etag": "W/\"53-hfEnumeNh6YirfjyjaujcOPPT+s\"",
"Via": "1.1 vegur",
"CF-Cache-Status": "HIT",
"Age": "15242",
"Accept-Ranges": "bytes",
"cf-request-id": "03afb689ec00007f11da290200000001",
"Server": "cloudflare",
"CF-RAY": "5ac626bcaa097f11-CMB"
},
"JSON": {
"Data": {
"userId": 1,
"id": 1,
"title": "delectus aut autem",
"completed": false
}
}
}
}
},
"FLDR": {
"ReplyId": "534f415031000000273b5323146300000400000000000000",
"RequestSendTime": 1593669682707,
"ReplyReceiptTime": 1593669682737,
"Reply": {
"Root": {
"HTTPResponseHeader": {
"X-Original-HTTP-Status-Line": "HTTP/1.1 200 OK",
"X-Original-HTTP-Status-Code": 200,
"Date": "Thu, 02 Jul 2020 06:01:17 GMT",
"Content-Type": "application/json; charset=utf-8",
"Content-Length": "99",
"Connection": "keep-alive",
"Set-Cookie": "__cfduid=debd2bf084ee690942fb5d3439e41fa331593669677; expires=Sat, 01-Aug-20 06:01:17 GMT; path=/; domain=.typicode.com; HttpOnly; SameSite=Lax",
"X-Powered-By": "Express",
"X-Ratelimit-Limit": "500",
"X-Ratelimit-Remaining": "497",
"X-Ratelimit-Reset": "1593684076",
"Vary": "Origin, Accept-Encoding",
"Access-Control-Allow-Credentials": "true",
"Cache-Control": "max-age=43200",
"Pragma": "no-cache",
"Expires": "-1",
"X-Content-Type-Options": "nosniff",
"Etag": "W/\"63-+s0zIP5ZEQN9hypVJUneLybJ+L0\"",
"Via": "1.1 vegur",
"CF-Cache-Status": "HIT",
"Age": "8713",
"Accept-Ranges": "bytes",
"cf-request-id": "03afb68a0900007f29ad07c200000001",
"Server": "cloudflare",
"CF-RAY": "5ac626bcdc137f29-CMB"
},
"JSON": {
"Data": {
"userId": 1,
"id": 2,
"title": "quis ut nam facilis et officia qui",
"completed": false
}
}
}
}
},
"FLDR": {
"ReplyId": "534f4150320000000bbb5323146300000400000000000000",
"RequestSendTime": 1593669682707,
"ReplyReceiptTime": 1593669682737,
"Reply": {
"Root": {
"HTTPResponseHeader": {
"X-Original-HTTP-Status-Line": "HTTP/1.1 200 OK",
"X-Original-HTTP-Status-Code": 200,
"Date": "Thu, 02 Jul 2020 06:01:17 GMT",
"Content-Type": "application/json; charset=utf-8",
"Content-Length": "84",
"Connection": "keep-alive",
"Set-Cookie": "__cfduid=dfbd2cc294d944ed4cfdf6b72a343f8dc1593669677; expires=Sat, 01-Aug-20 06:01:17 GMT; path=/; domain=.typicode.com; HttpOnly; SameSite=Lax",
"X-Powered-By": "Express",
"X-Ratelimit-Limit": "500",
"X-Ratelimit-Remaining": "499",
"X-Ratelimit-Reset": "1593684076",
"Vary": "Origin, Accept-Encoding",
"Access-Control-Allow-Credentials": "true",
"Cache-Control": "max-age=43200",
"Pragma": "no-cache",
"Expires": "-1",
"X-Content-Type-Options": "nosniff",
"Etag": "W/\"54-J3JtLgWuXjgj1OZdyAcKAqOaKHo\"",
"Via": "1.1 vegur",
"CF-Cache-Status": "HIT",
"Age": "8713",
"Accept-Ranges": "bytes",
"cf-request-id": "03afb68a0c00007f11da291200000001",
"Server": "cloudflare",
"CF-RAY": "5ac626bcea187f11-CMB"
},
"JSON": {
"Data": {
"userId": 1,
"id": 3,
"title": "fugiat veniam minus",
"completed": false
}
}
}
}
}
}
}
}
My question is how can I access the 3 JSON.Data elements and create a combined response. I know this is not a valid JSON and FLDR is a repeating key. Also this is not an array. How can I access these elements and create a combined response like this?
{
"result1": {
"userId": 1,
"id": 1,
"title": "delectus aut autem",
"completed": false
},
"result2": {
"userId": 1,
"id": 2,
"title": "quis ut nam facilis et officia qui",
"completed": false
},
"result3": {
"userId": 1,
"id": 3,
"title": "fugiat veniam minus",
"completed": false
}
}
Any help would be very much appreciated.

Answer 1

If you have a message tree containing that structure then you can access any part of it - regardless of whether it would be a valid JSON document.
Have you tried writing a normal FOR loop in ESQL to iterate over the occurrences of FLDR?
Note: this code is completely un-tested and probably contains syntax errors and defects...
DECLARE index INTEGER 1;
FOR refFLDR AS InputRoot.ComIbmGroupCompleteNode.Group.msg.Replies.FLDR[] DO
DECLARE fieldName 'Result' || index;
CREATE LASTCHILD OF OutputRoot.JSON.Data TYPE Name NAME fieldName FROM refFLDR;
SET index = index + 1;
END FOR;