insert jsonb data in postgresql, option array or objects, valid way

Example 1 (object):

CREATE TABLE customer {
  contact JSONB
}

update customer
set contact = '{ "phones":[ {"type": "mobile", "phone": "001001"} , {"type": "fix", "phone": "002002"} ] }'
where id = '4ca27243-6a55-4855-b0e6-d6e1d957f289';

Example 2 (array):

CREATE TABLE customer {
  phones JSONB
}

update customer
set phones = '[ {"type": "mobile", "phone": "001001"} , {"type": "fix", "phone": "002002"} ]'
where id = '4ca27243-6a55-4855-b0e6-d6e1d957f289';

Notes:

1. My PostgreSQL version

select version();

PostgreSQL 11.2 (Debian 11.2-1.pgdg90+1) on x86_64-pc-linux-gnu, compiled by gcc (Debian 6.3.0-18+deb9u1) 6.3.0 20170516, 64-bit

2. Be sure to enclose the keys and values with double quotes.

'{}' is array type in postgres. if you use jsonb, use regular '[]' for array:

so=# select jsonb_pretty('{"phones":[ {"type": "mobile", "phone": "001001"} , {"type": "fix", "phone": "002002"} ] }');
jsonb_pretty
{
    "phones": [
        {
            "type": "mobile",
            "phone": "001001"
        },
        {
            "type": "fix",
            "phone": "002002"
        }
    ]
}
(1 row)
Time: 0.486 ms

or:

so=# select jsonb_pretty('[ {"type": "mobile", "phone": "001001"} , {"type": "fix", "phone": "002002"} ]');
jsonb_pretty
[
    {
        "type": "mobile",
        "phone": "001001"
    },
    {
        "type": "fix",
        "phone": "002002"
    }
]
(1 row)