Need to get the updated key, value pairs alone from a mixed object

Issue

I have 2 objects, one original and one updated. The object has many nested objects. i need to get the updated key-value pairs alone

originalObject = {
  alphaKey: "alphaValue",
  betaKey: {
    betaAlphaKey: "betaAlphaValue",
    betaBetaKey: 123456,
  },
  gammaKey: "gammaValue",
  deltaKey: {
    deltaAlphaKey: "deltaAlphaValue",
    deltaBetaKey: {
      deltaBetaAlphaKey: "deltaBetaAlphaValue",
      deltaBetaBetaKey: "deltaBetaBetaValue",
    },
    deltaGammaKey: "deltaGammaValue",
  },
  epsilonKey: "epsilonValue",
  zetaKey: {
    zetaAlphaKey: "zetaAlphaValue",
    zetaBetaKey: 111222,
    zetaGammaKey: {
      zetaGammaAlphaKey: "zetaGammaAlphaValue",
      zetaGammaBetakey: "zetaGammaBetaValue",
      zetaGammaGammaKey: 222333444,
    },
  },
};

and

updatedObject = {
  alphaKey: "alphaValue",
  betaKey: {
    betaAlphaKey: "betaAlphaValue",
    betaBetaKey: 000123456,
  },
  gammaKey: "gammaValue",
  deltaKey: {
    deltaAlphaKey: "updatedDeltaAlphaValue",
    deltaBetaKey: {
      deltaBetaAlphaKey: "deltaBetaAlphaValue",
      deltaBetaBetaKey: "updatedDeltaBetaBetaValue",
    },
    deltaGammaKey: "deltaGammaValue",
  },
  epsilonKey: "epsilonValue",
  zetaKey: {
    zetaAlphaKey: "updatedZetaAlphaValue",
    zetaBetaKey: 000111222,
    zetaGammaKey: {
      zetaGammaAlphaKey: "zetaGammaAlphaValue",
      zetaGammaBetakey: "updatedZetaGammaBetaValue",
      zetaGammaGammaKey: 011222333444,
    },
  },
};

i want to compare these 2 and get output the upadted fields alone

output = {
    betaBetaKey: 000123456,
    deltaAlphaKey: "updatedDeltaAlphaValue",
    deltaBetaBetaKey: "updatedDeltaBetaBetaValue",
    zetaAlphaKey: "updatedZetaAlphaValue",
    zetaBetaKey: 000111222,
    zetaGammaBetakey: "updatedZetaGammaBetaValue",
    zetaGammaGammaKey: 011222333444
}

so, can you please help me in this

The code is expected to retrieve the nested objects, compare them with original fields, and save the updated fields in output Thanks

Solution

const originalObject = {
  alphaKey: "alphaValue",
  betaKey: {
    betaAlphaKey: "betaAlphaValue",
    betaBetaKey: 123456,
  },
  gammaKey: "gammaValue",
  deltaKey: {
    deltaAlphaKey: "deltaAlphaValue",
    deltaBetaKey: {
      deltaBetaAlphaKey: "deltaBetaAlphaValue",
      deltaBetaBetaKey: "deltaBetaBetaValue",
    },
    deltaGammaKey: "deltaGammaValue",
  },
  epsilonKey: "epsilonValue",
  zetaKey: {
    zetaAlphaKey: "zetaAlphaValue",
    zetaBetaKey: 111222,
    zetaGammaKey: {
      zetaGammaAlphaKey: "zetaGammaAlphaValue",
      zetaGammaBetakey: "zetaGammaBetaValue",
      zetaGammaGammaKey: 222333444,
    },
  },
};

const updatedObject = {
  alphaKey: "alphaValue",
  betaKey: {
    betaAlphaKey: "betaAlphaValue",
    betaBetaKey: 1337,
  },
  gammaKey: "gammaValue",
  deltaKey: {
    deltaAlphaKey: "updatedDeltaAlphaValue",
    deltaBetaKey: {
      deltaBetaAlphaKey: "deltaBetaAlphaValue",
      deltaBetaBetaKey: "updatedDeltaBetaBetaValue",
    },
    deltaGammaKey: "deltaGammaValue",
  },
  epsilonKey: "epsilonValue",
  zetaKey: {
    zetaAlphaKey: "updatedZetaAlphaValue",
    zetaBetaKey: 777,
    zetaGammaKey: {
      zetaGammaAlphaKey: "zetaGammaAlphaValue",
      zetaGammaBetakey: "updatedZetaGammaBetaValue",
      zetaGammaGammaKey: 111,
    },
  },
};

const getOneObject = async (obj) => {
    const result = {}
     const getKeysOfObject = async (o, key) => {
        if(typeof o === "object"){
            const keys = Object.keys(o)
            for (let i = 0; i < keys.length; i++) {
                await getKeysOfObject(o[keys[i]], keys[i])
            }
        }else{
            result[key] = o
        }
    }
    await getKeysOfObject(obj)
    return result
}

const getDiffs = async () => {
    const obj1 = await getOneObject(originalObject)
    const obj2 = await getOneObject(updatedObject)
    const keys = Object.keys(obj1)
    const output = {}
    for (let i = 0; i < keys.length; i++) {
        if(obj1[keys[i]] !== obj2[keys[i]]) output[keys[i]] = obj2[keys[i]]
    }
    console.log("Output: ", output)
    return output
}

getDiffs()

Answered By - Nikita Aplin