Error at or near square brackets - Postgres - sql

Question

I'm trying to run a PostgreSQL query which is:
insert into client (email, name) values ('johndoe#email.com', 'johnDoe');
insert into client_settings (client_id, data) values (currval('client_id_seq'), 0);
insert into client_verify (client_id, dataFields) values (currval('client_id_seq'), json_build_object('data1', ['a1', 'a2'], 'data2', ['b1', 'b2']) );
But I'm getting an error stating SQL Error [42601]: syntax error at or near "[".
The last json object(i.e., the dataFields) when inserted into the DB it should look like:
{"data1": ["a1", "a2"], "data2": ["b1", "b2"]}
Not sure what I am doing wrong. Is there something that I'm missing or a different way to do that?

Answer 1

After good research I found documentation to put 'Array' in front of those like:
json_build_object('data1', Array['a1', 'a2'], 'data2', Array['b1', 'b2'])

Answer 2

Is this what you need :
insert into client_verify (client_id, dataFields)
values (currval('client_id_seq'), json_build_object('data1', 'a1, a2', 'data2', 'b1, b2') );
Please try this:
insert into client_verify (client_id, dataFields)
values (currval('client_id_seq')
, json_build_object('data1', '["a1", "a2"]', 'data2', '["b1", "b2"]'));
Here you can check how you need to add your string:
https://www.freeformatter.com/json-escape.html#ad-output
The UNESCAPE is the option you need
Here is a demo :
DEMO