Hi Eliandro,
To update an existing array field using the JavaScript SDK in your backend you use the native data queries operators ($push in your case - please see documentation on native operators). The code will look similar to the following:
var el = new Everlive('your-app-id');
.......
var data = el.data('type-name');var attributes = { "$push": { "contacts": { "fisrtname": "Mary", "lastname": "Ann", "age": 27 } }};var filter = { 'Id': "item-id"};data.rawUpdate(attributes, filter, function(data) { console.log(JSON.stringify(data));}, function(error) { console.log(JSON.stringify(error));});If you want to push multiple values to the array, you may use this:
var values = [{ "fisrtname": "Mary", "lastname": "Ann", "age": 27}, { "fisrtname": "John", "lastname": "Doe", "age": 32}];var attributes = { "$push": { "contacts": { "$each": values } }};Let me know if this has helped.
Regards,Martin
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