Extract specific data from JSON string

Question

JSON:

{
  "trackResponse": {
    "shipment": [{
      "warnings": [{
        "code": "TW",
        "message": "Tracking Information Not Found"
      }]
    }]
  }
}

In that string I want to retrieve "message" information. Please let know

Does this answer your question? Is there a JSON equivalent of XQuery/XPath? — frost-nzcr4
– frost-nzcr4, Commented Apr 15, 2021 at 21:22

Nonik · Accepted Answer · 2021-04-15 21:22:27Z

1

use flatMap and Map

var data = {
  "trackResponse": {
    "shipment": [{
      "warnings": [{
        "code": "TW",
        "message": "Tracking Information Not Found"
      }]
    }]
  }
};
console.log(data.trackResponse.shipment.flatMap(i=>i.warnings.map(m=>m.message)))

answered Apr 15, 2021 at 21:22

Nonik

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2 Comments

vanowm Over a year ago

FYI, You are extracting it from an object, the question was about JSON...so You are missing a line ;)

Deepu Over a year ago

Can we do this without flatmap and map

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