jq add fields into json

I have the following json :

{
  "databases": [
    {
      "dbsid": "DB1",
      "login": "db1_user",
      "password": "fooXXXbar"
    },
    {
      "dbsid": "db2",
      "login": "alex",
      "password": "bar123foo"
    }
  ]
}

Now, I’d like to add a new record.
I’ve tried something like :

jq '.databases += {"password": "toto", "login":"bla", "dbsid":"foo"}' < file.json

But it outputs an error:

parse error: Objects must consist of key:value pairs at line 13, column 1
exit status 4

Could you please show me the right syntax ?
Regards

>Solution :

First, close the array with a closing square bracket ] between the last two object-closing curly braces:

    }
  ]
}

Then, also wrap the item to be added in array brackets, as you can only add arrays with +:

jq '.databases += [{"password": "toto", "login":"bla", "dbsid":"foo"}]' < file.json