Merge two JSON flowfile together in NiFi

Question

i want to merge two flowfile that contain JSON object by same specified attribute...

flow1:

attribute:    
xuuid = 123456

content:
{
"sname":"jack",
"id":"00001",
"state":"NY"
}

flow2:

attribute:    
xuuid = 123456

content:
{
"country":"US",
"date":"1983"
}

and i expect this form of data in single output flow:

desired_flow:

attribute:    
xuuid = 123456

content:
{
"sname":"jack",
"id":"00001",
"state":"NY",
"country":"US",
"date":"1983"
}

how do i play with this? MergeContent processor or MergeRecord? i think mergerecord can handle it but i confusing on it.

Answer 1

Yes MergeContent can do this for you.

I use EvalJson --> MergeContent --> AttributesToJson

I have posted a template here you can use to play around. Apache NiFi Merge Json Template

The MergeContent must have this settings : "Keep all attributes","2 a num of entires" ,"Delimiters strategy is Text"