Is it possible to use abbreviations instead of full names for object properties in a JSON string?

Question

Is it possible to use abbreviations instead of full names for object properties in a JSON string?

I'm looking for a way to efficiently convert large and repetitive javascript objects into JSON strings. With the abundance of repeating property names in these objects, I want to streamline the process by replacing those names with predefined abbreviations from a mapping list. My initial idea was to utilize the replacer function within JSON.stringify to skip the step of creating the JSON string first and then manipulating it, or altering the original object's property names directly, but I have yet to find out how to do this.

For instance, considering the following mapping of property names to abbreviations:

var map = {
    prop0: "p0",
    prop1: "p1",
    prop2: "p2"
}

I aim to transform an object like the one below:

var obj = {
    prop0: "value0",
    prop1: [
        {prop2: "value2"},
        {prop2: "value3"},
        {prop2: "value4"}
    ]
}

into a JSON string resembling this:

{"p0":"value0","p1":[{"p2":"value2"},{"p2":"value3"},{"p2":"value4"}]}

and vice versa.

javascript json object

Answer 1

Answer №1

While there are various methods for compressing JSON data, one approach involves utilizing the JSON.parse reviver and the JSON.stringify replacer to manipulate nested values. It's important to note that this particular example may not function correctly in Internet Explorer:

var obj = { prop0: "value0", prop1: [ { prop2: "value2" }, { prop2: "value3" }, { prop2: "value4" } ] }

var replacer = map => (k, v) => v.constructor !== Object ? v : 
  Object.fromEntries( Object.entries(v).map(([k, v]) => [map[k] || k, v]) )

var json = JSON.stringify(obj, replacer({ prop0: "p0", prop1: "p1", prop2: "p2" }))

var obj2 = JSON.parse(json, replacer({ p0: "prop0", p1: "prop1", p2: "prop2" }))

console.log( json )
console.log( obj2 )

Answer 2

While there are various methods for compressing JSON data, one approach involves utilizing the JSON.parse reviver and the JSON.stringify replacer to manipulate nested values. It's important to note that this particular example may not function correctly in Internet Explorer:

var obj = { prop0: "value0", prop1: [ { prop2: "value2" }, { prop2: "value3" }, { prop2: "value4" } ] }

var replacer = map => (k, v) => v.constructor !== Object ? v : 
  Object.fromEntries( Object.entries(v).map(([k, v]) => [map[k] || k, v]) )

var json = JSON.stringify(obj, replacer({ prop0: "p0", prop1: "p1", prop2: "p2" }))

var obj2 = JSON.parse(json, replacer({ p0: "prop0", p1: "prop1", p2: "prop2" }))

console.log( json )
console.log( obj2 )

Answer 3

Answer №2

If there are no more nested values, you might want to consider implementing a solution similar to the following:

var mapping = {
  prop0: "p0",
  prop1: "p1",
  prop2: "p2"
}

var object = {
  prop0: "value0",
  prop1: [
    { prop2: "value2" },
    { prop2: "value3" },
    { prop2: "value4" }
  ]
}

const newObject = {};

for (let key in object) {
  if (Array.isArray(object[key])) {
    newObject[mapping[key]] = object[key].map(item => {
      const arrKey = Object.keys(item)[0];
      return {
        [mapping[arrKey]]: item[arrKey]
      }
    })
  } else {
    newObject[mapping[key]] = object[key]
  }
}

console.log(JSON.stringify(newObject))

Answer 4

If there are no more nested values, you might want to consider implementing a solution similar to the following:

var mapping = {
  prop0: "p0",
  prop1: "p1",
  prop2: "p2"
}

var object = {
  prop0: "value0",
  prop1: [
    { prop2: "value2" },
    { prop2: "value3" },
    { prop2: "value4" }
  ]
}

const newObject = {};

for (let key in object) {
  if (Array.isArray(object[key])) {
    newObject[mapping[key]] = object[key].map(item => {
      const arrKey = Object.keys(item)[0];
      return {
        [mapping[arrKey]]: item[arrKey]
      }
    })
  } else {
    newObject[mapping[key]] = object[key]
  }
}

console.log(JSON.stringify(newObject))

Answer 5

Answer №3

If you're looking to efficiently organize and transform your data, consider utilizing the Json Data Mapper node module available on npm at Json data mapper.

This tool enables you to define a custom schema and seamlessly convert your data into the desired format.

Answer 6

If you're looking to efficiently organize and transform your data, consider utilizing the Json Data Mapper node module available on npm at Json data mapper.

This tool enables you to define a custom schema and seamlessly convert your data into the desired format.

Is it possible to use abbreviations instead of full names for object properties in a JSON string?

Answer №1

Answer №2

Answer №3

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