node.js - How to dynamically add an object in schema? -

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i have collection this-

var schema= new mongoose.schema({   username:{type:string},   responses:{type:mongoose.schema.types.mixed} });

i save document in collection like-

{ username:anonymous,responses:{}}

now want update -

{username:anonymous,responses:{tst123:{duration:30,res:{}},tet456:{duration:50,res:{}}}

i want update document in following step goes-

1) responses:{}

2) responses:{test123:{},res:{}}

3) responses:{test123:{dur:30,refresh:false},res:{{key1:val1}} }

4) responses:{ test123:{dur:30,refresh:false},res {{key1:val1},key2:val2} }

similarly, want add test456 , more tests, how achieve this?

use $set operator in update method follows:

var schema= new mongoose.schema({     username: { type: string },     responses: { type: mongoose.schema.types.mixed } });  var thing = mongoose.model('thing', schema),     query = { 'username': 'anonymous' },     update = {          '$set': {              'responses': {                 'tst123': {                     'duration': 30,                     'res': {}                 },                 'tet456': {                     'duration': 50,                     'res': {}                 }              }         }     },     options = { multi: true };  thing.update(query, update, options, callback);  function callback (err, numaffected) {   // numaffected number of updated documents })

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