How to create a json object from another json object using JavaScript?-CodePudding

I am really junior with javascript and json, so I have this JSON input, and I need to get all that information in the "properties" object to create a new JSON object with just that information.

I'm using a base code like this one, but this is just returning {}.

exports.step = function(input, fileInput) {
    var alert = {
        'Properties': input.alert.properties
    }
    return JSON.stringify(alert, undefined, 1);
  };

Original JSON:

"value": {
        "id": "12345",
        "entity": {
            "_integrationDefinitionId": "7a6764",
            "_integrationName": "Apple Main",
            "_beginOn": "2021-09-01T02:20:06.189Z",
            "displayName": "apple-onev",
            "_accountIdPartitioned": "12345|12",
            "_class": [
                "Deployment",
                "Group"
            ],
            "_version": 3,
            "_integrationClass": [
                "CiSSP",
                "Infrastructure"
            ],
            "_accountId": "123456",
            "_id": "1e234567",
            "_key": "arn:aws:autoscaling:us-west-2:83712398:autoScalingGroup:asd1238-20c8-41aa-bcec-12340912341:autoScalingGroupName/awseb-e-juancito-stack-AWSEBAutoScalingGroup-123456",
            "_type": [
                "aws_autoscaling_group"
            ],
            "_deleted": false,
            "_rawDataHashes": "1233456==",
            "_integrationInstanceId": "54321",
            "_integrationType": "aws",
            "_source": "integration",
            "_createdOn": "2021-07-19T23:19:19.758Z"
        },
        "properties": {
            "webLink": "https://google.com",
            "arn": "name",
            "region": "us-west-2",
            "name": "JonnyAndTheVibes",
            "launchConfigurationName": "OtherName",
            "minSize": 1,
            "maxSize": 4,
            "desiredCapacity": 1,
            "defaultCooldown": 360,
            "availabilityZones": "us-west-2a",
            "LoadBalancerNames": "MoreInfo",
            "healthCheckType": "EC2",
            "healthCheckGracePeriod": 0,
            "instanceIds": "InstanceName",
            "subnetIds": "subnet",
            "terminationPolicies": "Default",
            "newInstancesProtectedFromScaleIn": false,
            "serviceLinkedRoleARN": "aMoreInfo",
            "tag.Name": "atag",
            "tag.application": "othertag",
            "tag.aws:cloudformation:logical-id": "moretagsp",
            "tag.aws:cloudformation:stack-id": "taggigante",
            "tag.aws:cloudformation:stack-name": "ydaleconlostags",
            "tag.elasticbeanstalk:environment-id": "seguimosmetiendoletags",
            "tag.elasticbeanstalk:environment-name": "tag",
            "tag.env": "tag",
            "tag.team": "tag",
            "accountId": "tag",
            "tag.AccountName": "tag",
            "tag.Production": true,
            "@tag.Production": ""
        }
    }

I'm sure that it will be a simple solution, but need to solve this asap.

Thanks

CodePudding user response：

You appear to be trying to grab properties from the wrong object. It should be value not alert.

const json = '{"value":{"id":"12345","entity":{"_integrationDefinitionId":"7a6764","_integrationName":"Apple Main","_beginOn":"2021-09-01T02:20:06.189Z","displayName":"apple-onev","_accountIdPartitioned":"12345|12","_class":["Deployment","Group"],"_version":3,"_integrationClass":["CiSSP","Infrastructure"],"_accountId":"123456","_id":"1e234567","_key":"arn:aws:autoscaling:us-west-2:83712398:autoScalingGroup:asd1238-20c8-41aa-bcec-12340912341:autoScalingGroupName/awseb-e-juancito-stack-AWSEBAutoScalingGroup-123456","_type":["aws_autoscaling_group"],"_deleted":false,"_rawDataHashes":"1233456==","_integrationInstanceId":"54321","_integrationType":"aws","_source":"integration","_createdOn":"2021-07-19T23:19:19.758Z"},"properties":{"webLink":"https://google.com","arn":"name","region":"us-west-2","name":"JonnyAndTheVibes","launchConfigurationName":"OtherName","minSize":1,"maxSize":4,"desiredCapacity":1,"defaultCooldown":360,"availabilityZones":"us-west-2a","LoadBalancerNames":"MoreInfo","healthCheckType":"EC2","healthCheckGracePeriod":0,"instanceIds":"InstanceName","subnetIds":"subnet","terminationPolicies":"Default","newInstancesProtectedFromScaleIn":false,"serviceLinkedRoleARN":"aMoreInfo","tag.Name":"atag","tag.application":"othertag","tag.aws:cloudformation:logical-id":"moretagsp","tag.aws:cloudformation:stack-id":"taggigante","tag.aws:cloudformation:stack-name":"ydaleconlostags","tag.elasticbeanstalk:environment-id":"seguimosmetiendoletags","tag.elasticbeanstalk:environment-name":"tag","tag.env":"tag","tag.team":"tag","accountId":"tag","tag.AccountName":"tag","tag.Production":true,"@tag.Production":""}}}';

function getAlert(dsta) {
 
  // Destructure the properties object from the 
  // data's value property
  const { properties } = data.value;
  
  // Create a new object with it
  const alert = { properties };

  // Return the string
  return JSON.stringify(alert, null, 2);

};

// Parse the JSON
const data = JSON.parse(json);

// Call the function with the parsed data
const alert = getAlert(data);

console.log(alert);

Additional information

Destructuring assignment

CodePudding user response：

use this function :

function assignJsons(...jsons) {
    const convertToObject = jsons.map(json => {
        return JSON.parse(json)
  });
  return JSON.stringify(Object.assign(...convertToObject))
}  

//test
console.log(assignJsons(`{"name" : "alex", "family" : "mask"}`, `{"family" : "rejest"}`))

CodePudding user response：

if you want a completely new object

var newJsonObject = JSON.parse('{ "properties":'
   JSON.stringify (origJson.value.properties)   "}");

var newJsonObject={"properties":Object.assign ({}, origJson.value.properties)};