CODEWITHSUNDEEP
jsonapache-nifijolt
Rakesh Prasad
Rakesh Prasad

Reputation: 642

JOLT spec for nifi processor

I have following JSON input

{
  "events": [
    {
      "cluster_id": "0717-035521-puny598",
      "timestamp": 1535540053785,
      "type": "TERMINATING",
      "details": {
        "reason": {
          "code": "INACTIVITY",
          "parameters": {
            "inactivity_duration_min": "15"
          }
        }
      }
    },
    {
      "cluster_id": "0717-035521-puny598",
      "timestamp": 1535537117300,
      "type": "EXPANDED_DISK",
      "details": {
        "previous_disk_size": 29454626816,
        "disk_size": 136828809216,
        "free_space": 17151311872,
        "instance_id": "6cea5c332af94d7f85aff23e5d8cea37"
      }
    }
  ]
}

I want to convert it into following.

1) add one static key:value in each object of "events" array. 2) remove one element "type" from each object of "events" array. 3) rest all values should be same in i/p and o/p. "details" is a object with no specific structure. 

{
  "events": [
    {
      "new_key" : "new_value",
      "cluster_id": "0717-035521-puny598",
      "timestamp": 1535540053785,

      "details": {
        "reason": {
          "code": "INACTIVITY",
          "parameters": {
            "inactivity_duration_min": "15"
          }
        }
      }
    },
    {
      "new_key" : "new_value",
      "cluster_id": "0717-035521-puny598",
      "timestamp": 1535537117300,

      "details": {
        "previous_disk_size": 29454626816,
        "disk_size": 136828809216,
        "free_space": 17151311872,
        "instance_id": "6cea5c332af94d7f85aff23e5d8cea37"
      }
    }
  ]
}

Upvotes: 0

Views: 159

Answers (1)

mattyb
mattyb

Reputation: 12083

The following chain spec should work:

[
  {
    "operation": "default",
    "spec": {
      "events[]": {
        "*": {
          "new-key": "new-value"
        }
      }
    }
  },
  {
    "operation": "remove",
    "spec": {
      "events": {
        "*": {
          "type": ""
        }
      }
    }
  }
]

Upvotes: 1

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