Retrieving data from a child node using Jsonpath

Displayed below is a sample of JSON input data:

{    
 "India":{
      "Attributes":{"Time":"2006-05-04T03:22:11.499Z"},
      "ActiveCity":{
           "profile":"Mumbai"
      },
      "CurrentCities":{
           "Mumbai":{"population":"121212121","Area":8},
           "Delhi":{"population":"121212121","Area":8},
           "Lonng":{"population":"121212121","Area":8}
      },
      "FeatureCities":{
           "NewMumbai":{"population":"121212121","Area":8},
           "NewDelhi":{"population":"121212121","Area":8},
           "NewLonng":{"population":"121212121","Area":8}
      }
 }
}

My goal in TypeScript is to replace the CurrentCities section with only ActiveCity. For example, my desired output should be as follows:

{    
 "India":{
      "Attributes":{"Time":"2006-05-04T03:22:11.499Z"},
      "ActiveCity":{
           "profile":"Mumbai"
      },
      "CurrentCities":{
           "Mumbai":{"population":"121212121","Area":8}
      },
      "FeatureCities":{
           "NewMumbai":{"population":"121212121","Area":8},
           "NewDelhi":{"population":"121212121","Area":8},
           "NewLonng":{"population":"121212121","Area":8}
      }
 }
}

If you have suggestions on how I can achieve this using Jsonpath in TypeScript, please let me know. Thank you!

javascriptjsontypescript

Answer №1

To retrieve the object stored in currentCities, you can use the current value of:

 obj.India.CurrentCities[obj.India.ActiveCity.profile]


let obj = {  "India": {    "Attributes": {      "Time": "2006-05-04T03:22:11.499Z"    },    "ActiveCity": {      "profile": "Mumbai"    },    "CurrentCities": {      "Mumbai": {        "population": "121212121",        "Area": 8      },      "Delhi": {        "population": "121212121",        "Area": 8      },      "Lonng": {        "population": "121212121",        "Area": 8      }    },    "FeatureCities": {      "NewMumbai": {        "population": "121212121",        "Area": 8      },      "NewDelhi": {        "population": "121212121",        "Area": 8      },      "NewLonng": {        "population": "121212121",        "Area": 8      }    }
}

obj.India.CurrentCities = {[obj.India.ActiveCity.profile]: obj.India.CurrentCities[obj.India.ActiveCity.profile]}

console.log(obj);
.as-console-wrapper { max-height: 100% !important; top: 0; }

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