如何使用JavaScript从另一个json对象创建json对象

Question

我在JavaScript和json方面还很初级，所以我有这个json输入，我需要在"属性"；对象创建一个新的JSON对象。

我使用的是像这样的基本代码，但这只是返回｛｝。

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

原始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": "​"
}
}

我相信这将是一个简单的解决方案。

Answer 1

您似乎试图从错误的对象中获取properties。它应该是value而不是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);

附加信息

• 正在破坏分配

Answer 2

使用此函数：

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"}`))

Answer 3

如果您想要一个全新的对象

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

或

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