[
    { col1: a, col2: 5, col3: 1, col4: one},
    { col1: b, col2: 6, col3: 2, col4: two},
    { col1: c, col2: 7, col3: 3, col4: three},
    { col1: d, col2: 8, col3: 4, col4: four},
]

col1   (varchar)| col2 (integer) |   col3 (integer)   |   col4 (varchar)
-----------------+----------------+--------------------+------------------
    a            |  5             |     1              |    one
    b            |  6             |     2              |    two
    c            |  7             |     3              |    three
    d            |  8             |     4              |    four

CREATE OR REPLACE FUNCTION UPDATE_TABLE_FUNC (
arrayOfValues TEXT[]
)
RETURN VOID AS $$
BEGIN
UPDATE table SET (col1, col2, col3, col4) = ($1)
END;
$$ LANGUAGE plpgsql;

SELECT * FROM jsonb_to_recordset('[
    { "col1": "a", "col2": 1, "col3": 1, "col4": "one"},
    { "col1": "b", "col2": 2, "col3": 2, "col4": "two"},
    { "col1": "c", "col2": 3, "col3": 3, "col4": "three"},
    { "col1": "d", "col2": 4, "col3": 4, "col4": "four"}
]'::jsonb) AS t (col1 text, col2 integer, col3 integer, col4 text);

 col1 │ col2 │ col3 │ col4
──────┼──────┼──────┼───────
 a    │    1 │    1 │ one
 b    │    2 │    2 │ two
 c    │    3 │    3 │ three
 d    │    4 │    4 │ four

CREATE TABLE inputtable (col1 text, col2 integer, col3 integer, col4 text);

SELECT * FROM jsonb_populate_recordset(NULL::yourtable, '[
    { "col1": "a", "col2": 1, "col3": 1, "col4": "one"},
    { "col1": "b", "col2": 2, "col3": 2, "col4": "two"},
    { "col1": "c", "col2": 3, "col3": 3, "col4": "three"},
    { "col1": "d", "col2": 4, "col3": 4, "col4": "four"}
]'::jsonb);

 col1 │ col2 │ col3 │ col4
──────┼──────┼──────┼───────
 a    │    1 │    1 │ one
 b    │    2 │    2 │ two
 c    │    3 │    3 │ three
 d    │    4 │    4 │ four

WITH source AS (SELECT * FROM jsonb_populate_recordset [...])
UPDATE yourtable
   SET col1 = s.col1, col2 = s.col2
  FROM source AS s
 WHERE col3 = s.col3;

databases=# set var `cat /home/user/file.json`

databases=# echo :'var';

databases=# create table code (name text not null, lastname text not null);

 the names of the columns have to be the same as your json file, for example:
     [
         {
            "name": "enrique",
            "lastname": "vega"
         },
         {
            "name": "jose",
            "lastname": "mendez"
         }
      ]

databases=# insert into nametable select * from jsonb_populate_recordset(null::nametable,:'var'::jsonb);