JSON is just a notation; to make the change you want parse it so you can apply the changes to a native JavaScript Object, then stringify back to JSON

var jsonStr = '{"theTeam":[{"teamId":"1","status":"pending"},{"teamId":"2","status":"member"},{"teamId":"3","status":"member"}]}';

var obj = JSON.parse(jsonStr);
obj['theTeam'].push({"teamId":"4","status":"pending"});
jsonStr = JSON.stringify(obj);
// "{"theTeam":[{"teamId":"1","status":"pending"},{"teamId":"2","status":"member"},{"teamId":"3","status":"member"},{"teamId":"4","status":"pending"}]}"

Observation

• If there is a single object and you want to push whole object into an array then no need to iterate the object.

Try this :

var feed = {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"};

var data = [];
data.push(feed);

console.log(data);

Instead of :

var my_json = {created_at: "2017-03-14T01:00:32Z", entry_id: 33358, field1: "4", field2: "4", field3: "0"};

var data = [];
for(var i in my_json) {
    data.push(my_json[i]);
}

console.log(data);

HI,So basically you have to create a array and push this JSON into that array as below: · var obj1 = '{"app_said":"123","app_code":"AAA","application_type":"business","business_unit":"aaa","primary_email":"p@test.com","secondary_email":"s@test.com","manager_email":"m@test.com","description":"sd"}'; · var obj2 ='[{"s_type" : "physical","os" : "esx","f_type" : "application","region" : "emea","a_storage" : "100","r_required" : "false"}]'; · var arr = []; · arr.push(obj1);gs.print(arr); · arr.push(obj2);gs.print(arr); ·   · OUTPUT: · 2020-04-05T13:02:52.910Z: [ "{\"app_said\":\"123\",\"app_code\":\"AAA\",\"application_type\":\"business\",\"business_unit\":\"aaa\",\"primary_email\":\"p@test.com\",\"secondary_email\":\"s@test.com\",\"manager_email\":\"m@test.com\",\"description\":\"sd\"}" ] · 2020-04-05T13:02:52.910Z: [ "{\"app_said\":\"123\",\"app_code\":\"AAA\",\"application_type\":\"business\",\"business_unit\":\"aaa\",\"primary_email\":\"p@test.com\",\"secondary_email\":\"s@test.com\",\"manager_email\":\"m@test.com\",\"description\":\"sd\"}", "[{\"s_type\" : \"physical\",\"os\" : \"esx\",\"f_type\" : \"application\",\"region\" : \"emea\",\"a_storage\" : \"100\",\"r_required\" : \"false\"}]" ] · Thanks, · Ashutosh

You could either use [Append to array variable] action or union() function like union(variables('arrayNotes'), variables('arrayNoteItem')) to add a new item to the original array.

See the screenshots below.

Using Union function

Do not try to parse JSON text with standard text processing tools like awk, sed or without JSON modules in perl, as they are non JSON syntax aware. jq is a lightweight JSON processor that allows you manipulate content on the fly.

For e.g. your requirement could be simply written as

jq --arg new "arn:aws:iam::xxxxxxx:role/3" \
  '.Statement[].Principal.AWS? += [$new]' json

If there is more than one element to be appended, create the arg as a JSON blob

jq --argjson new \
  '["arn:aws:iam::xxxxxxx:role/3", "arn:aws:iam::xxxxxxx:role/4"]' \
  '.Statement[].Principal.AWS? += $new'

Instructions for downloading and using the tool are at Download jq and usage tutorial at jq Manual

If the contents are in a file and you want to modify this file permanently, use a in-place edit tool like sponge available from GNU moreutils package which you can do

jq --arg new "arn:aws:iam::xxxxxxx:role/3" \
  '.Statement[].Principal.AWS? += [$new]' json | sponge json

or use a POSIX tool like mktemp

temp="$(mktemp)"
jq --arg new "arn:aws:iam::xxxxxxx:role/3" \
  '.Statement[].Principal.AWS? += [$new]' json > "$temp" && mv "$temp" json