Hi, Greetings!
My requirement is as below. I have Topic named "sample-topic". This topic contains the same keys(as String) with multiple messages and the messages are in JSON format. I would like to merge the JSON messages and produce a final JSON. In order to achieve this, how to maintain the state of the previous message? Below are the input messages in the topic. Key : 0 Message: { "attr1" : "value1", "attr2" : "value_01", "attr3" :"value_3" } Key : 1 Message: { "attr1": "value_x", "attr2": "value2" , "attr3" : "value_y"} Key : 2 Message: { "attr1": "value_m", "attr2": null , "attr3" : "value_o"} Now, I need the resultant JSON as below. { "attr1": "value_m", "attr2": "value2" , "attr3" : "value_o"} Could someone help me by letting me know the solution? Thank you. Thanks C Suresh